diff --git a/src/claim-request-management/claim-request-management.service.ts b/src/claim-request-management/claim-request-management.service.ts
index 4d7afc1..04bd61d 100644
--- a/src/claim-request-management/claim-request-management.service.ts
+++ b/src/claim-request-management/claim-request-management.service.ts
@@ -99,8 +99,6 @@ import {
   hasClaimCarAngleCapture,
   hasDamagedPartCapture,
   legacyAngleDamagedPartFieldKeysToUnset,
-  legacyDamagedPartTitleEnFromPartKey,
-  resolveCanonicalDamagedPartStorageKey,
   type ClaimCarAngleKey,
 } from "src/helpers/claim-car-angle-media";
 import {
@@ -108,6 +106,16 @@ import {
   OUTER_PARTS_BY_CAR_TYPE,
   OuterPartCatalogItem,
 } from "src/static/outer-car-parts-catalog";
+import {
+  carPartDamageLabelForFactorRecord,
+  catalogItemToSelectedPart,
+  catalogLikeKeyFromPart,
+  coerceDamagedPartsMediaToArray,
+  migrateExpertReplyCarPartDamageToUnified,
+  normalizeDamageSelectedParts,
+  partIdentityKey,
+  resolvePartCaptureIndex,
+} from "src/helpers/outer-damage-parts";
 
 @Injectable()
 export class ClaimRequestManagementService {
@@ -718,17 +726,32 @@ export class ClaimRequestManagementService {
         throw new BadRequestException("Car part damage is already set.");
       }
       this.assertCarPartDamageAtMostTwoOfFourSides(dto.carPartDamage);
-      const selectedParts = this.carDamagePartDtoToOuterPartSlugs(dto.carPartDamage);
-      if (!selectedParts.length) {
+      const selectedSlugStrings = this.carDamagePartDtoToOuterPartSlugs(
+        dto.carPartDamage,
+      );
+      if (!selectedSlugStrings.length) {
         throw new BadRequestException(
           "No outer damaged parts could be derived from carPartDamage. Check part selections.",
         );
       }
+      const selectedPartObjs = normalizeDamageSelectedParts(
+        selectedSlugStrings,
+        working.vehicle?.carType as ClaimVehicleTypeV2 | undefined,
+        undefined,
+      );
+      const damagedPartsStubs = selectedPartObjs.map((p) => ({
+        id: p.id ?? undefined,
+        name: p.name,
+        side: p.side,
+        label_fa: p.label_fa,
+        ...(p.catalogKey ? { catalogKey: p.catalogKey } : {}),
+      }));
 
       const updated = await this.claimCaseDbService.findByIdAndUpdate(
         claimRequestId,
         {
-          "damage.selectedParts": selectedParts,
+          "damage.selectedParts": selectedPartObjs,
+          "media.damagedParts": damagedPartsStubs,
           status: ClaimCaseStatus.SELECTING_OTHER_PARTS,
           "workflow.currentStep": ClaimWorkflowStep.SELECT_OTHER_PARTS,
           "workflow.nextStep": ClaimWorkflowStep.CAPTURE_PART_DAMAGES,
@@ -746,7 +769,7 @@ export class ClaimRequestManagementService {
               timestamp: new Date(),
               metadata: {
                 stepKey: ClaimWorkflowStep.SELECT_OUTER_PARTS,
-                selectedParts,
+                selectedParts: selectedPartObjs,
                 description: "Field expert submitted outer damage parts",
               },
             },
@@ -1924,7 +1947,10 @@ export class ClaimRequestManagementService {
    * - convert factorLink ObjectId -> public URL
    * - enrich daghi.branchId with branchName when available
    */
-  private async mapEvaluationForClient(evaluation: any): Promise<any | undefined> {
+  private async mapEvaluationForClient(
+    evaluation: any,
+    carType?: ClaimVehicleTypeV2,
+  ): Promise<any | undefined> {
     if (!evaluation) return undefined;
 
     const mapReply = async (reply: any) => {
@@ -1990,6 +2016,13 @@ export class ClaimRequestManagementService {
           };
         }
 
+        if (nextPart.carPartDamage != null) {
+          nextPart.carPartDamage = migrateExpertReplyCarPartDamageToUnified(
+            nextPart.carPartDamage,
+            carType,
+          );
+        }
+
         return nextPart;
       });
 
@@ -2034,7 +2067,9 @@ export class ClaimRequestManagementService {
       const parts = finalReply?.parts || [];
       const missingFactors = parts
         .filter((p) => p.factorNeeded === true && !p.factorLink)
-        .map((p) => p.carPartDamage || p.partId);
+        .map((p) =>
+          carPartDamageLabelForFactorRecord(p.carPartDamage) || p.partId,
+        );
 
       if (missingFactors.length > 0) {
         throw new HttpException(
@@ -2261,7 +2296,7 @@ export class ClaimRequestManagementService {
       const factorRecord = await this.claimFactorsImageDbService.create({
         claimId,
         partId,
-        partName: part.carPartDamage,
+        partName: carPartDamageLabelForFactorRecord(part.carPartDamage),
         path: file.path,
         fileName: file.filename,
         uploadedAt: new Date(),
@@ -2398,7 +2433,9 @@ export class ClaimRequestManagementService {
         );
       }
 
-      const partNameForRecord = part.carPartDamage ?? part.partId;
+      const partNameForRecord =
+        carPartDamageLabelForFactorRecord(part.carPartDamage) ||
+        String(part.partId ?? "");
 
       const factorRecord = await this.claimFactorsImageDbService.create({
         claimId: new Types.ObjectId(claimRequestId),
@@ -3983,41 +4020,46 @@ export class ClaimRequestManagementService {
         );
       }
 
-      selectedParts = selectedItems.map((p) => p.key);
-      const selectedPartIds = selectedItems.map((p) => p.id);
-      const selectedOuterParts = selectedItems.map((p) => ({
-        id: p.id,
-        key: p.key,
+      const selectedPartDocs = selectedItems.map((p) =>
+        catalogItemToSelectedPart(p, catalog),
+      );
+      const damagedPartsInitial = selectedPartDocs.map((p) => ({
+        id: p.id ?? undefined,
+        name: p.name,
         side: p.side,
+        label_fa: p.label_fa,
+        ...(p.catalogKey ? { catalogKey: p.catalogKey } : {}),
       }));
+      const selectedPartIds = selectedItems.map((p) => p.id);
 
       // 6. Update claim case with selected parts and move to next step
       const updatedClaim = await this.claimCaseDbService.findByIdAndUpdate(
         claimRequestId,
         {
-          'damage.selectedParts': selectedParts,
-          'damage.selectedOuterParts': selectedOuterParts,
-          'vehicle.carType': selectedCarType,
-          'status': ClaimCaseStatus.SELECTING_OTHER_PARTS,
-          'workflow.currentStep': ClaimWorkflowStep.SELECT_OTHER_PARTS,
-          'workflow.nextStep': ClaimWorkflowStep.CAPTURE_PART_DAMAGES,
+          "damage.selectedParts": selectedPartDocs,
+          "media.damagedParts": damagedPartsInitial,
+          "vehicle.carType": selectedCarType,
+          status: ClaimCaseStatus.SELECTING_OTHER_PARTS,
+          "workflow.currentStep": ClaimWorkflowStep.SELECT_OTHER_PARTS,
+          "workflow.nextStep": ClaimWorkflowStep.CAPTURE_PART_DAMAGES,
+          $unset: { "damage.selectedOuterParts": "" },
           $push: {
-            'workflow.completedSteps': ClaimWorkflowStep.SELECT_OUTER_PARTS,
+            "workflow.completedSteps": ClaimWorkflowStep.SELECT_OUTER_PARTS,
             history: {
-              type: 'STEP_COMPLETED',
+              type: "STEP_COMPLETED",
               actor: {
                 actorId: new Types.ObjectId(currentUserId),
-                actorName: claimCase.owner?.fullName || 'User',
-                actorType: 'user',
+                actorName: claimCase.owner?.fullName || "User",
+                actorType: "user",
               },
               timestamp: new Date(),
               metadata: {
                 stepKey: ClaimWorkflowStep.SELECT_OUTER_PARTS,
-                selectedParts: selectedParts,
+                selectedParts: selectedPartDocs,
                 selectedPartIds,
                 carType: selectedCarType,
-                partsCount: selectedParts?.length,
-                description: `User selected ${selectedParts?.length} damaged outer parts`,
+                partsCount: selectedPartDocs?.length,
+                description: `User selected ${selectedPartDocs?.length} damaged outer parts`,
               },
             },
           },
@@ -4025,22 +4067,23 @@ export class ClaimRequestManagementService {
       );
 
       if (!updatedClaim) {
-        throw new InternalServerErrorException('Failed to update claim case');
+        throw new InternalServerErrorException("Failed to update claim case");
       }
 
       this.logger.log(
-        `Outer parts selected for claim ${claimRequestId}: ${selectedParts?.length} parts`,
+        `Outer parts selected for claim ${claimRequestId}: ${selectedPartDocs?.length} parts`,
       );
 
       // 7. Return response
       return {
         claimRequestId: updatedClaim._id.toString(),
         publicId: updatedClaim.publicId,
-        selectedParts: selectedParts,
+        selectedParts: selectedPartDocs,
         selectedPartIds,
         currentStep: ClaimWorkflowStep.SELECT_OTHER_PARTS,
         nextStep: ClaimWorkflowStep.CAPTURE_PART_DAMAGES,
-        message: 'Outer parts selected successfully. Please proceed to select other parts and provide bank information.',
+        message:
+          "Outer parts selected successfully. Please proceed to select other parts and provide bank information.",
       };
     } catch (error) {
       if (error instanceof HttpException) throw error;
@@ -4293,19 +4336,6 @@ export class ClaimRequestManagementService {
         if (!catalogByKey.has(item.key)) catalogByKey.set(item.key, item);
       }
 
-      const getPartLabel = (key: string): { fa: string; en: string } => {
-        const catalogItem = catalogByKey.get(key);
-        if (catalogItem) {
-          const en = key
-            .replace(/([a-z])([A-Z])/g, "$1 $2")
-            .replace(/_/g, " ")
-            .trim()
-            .replace(/\b\w/g, (c) => c.toUpperCase());
-          return { fa: catalogItem.titleFa, en };
-        }
-        return { fa: key, en: key };
-      };
-
       // Required documents: CAR_BODY needs 7 (damaged + green card); THIRD_PARTY needs 13 (add guilty_*)
       const blameRequest = claimCase.blameRequestId
         ? await this.blameRequestDbService.findById(claimCase.blameRequestId.toString())
@@ -4359,46 +4389,36 @@ export class ClaimRequestManagementService {
         ),
       }));
 
-      // Damaged parts from selected parts
-      const selectedParts = claimCase.damage?.selectedParts || [];
-      const selectedOuterParts = Array.isArray(claimCase.damage?.selectedOuterParts)
-        ? claimCase.damage.selectedOuterParts
-        : [];
-      const selectedOuterPartByKey = new Map<
-        string,
-        { id?: number; side?: string }
-      >(
-        selectedOuterParts.map((p) => [
-          p.key,
-          {
-            id: p.id,
-            side: p.side,
-          },
-        ]),
+      const carType = claimCase.vehicle?.carType as ClaimVehicleTypeV2 | undefined;
+      const selectedNorm = normalizeDamageSelectedParts(
+        claimCase.damage?.selectedParts,
+        carType,
+        (claimCase.damage as any)?.selectedOuterParts,
       );
 
-      const damagedParts = selectedParts.map(partKey => {
-        const label = getPartLabel(partKey);
-        const selectedMeta = selectedOuterPartByKey.get(partKey);
-        const catalogMeta = catalogByKey.get(partKey);
-        const side = selectedMeta?.side ?? catalogMeta?.side;
-        const sideFaMap: Record<string, string> = {
-          left: "چپ",
-          right: "راست",
-          front: "جلو",
-          back: "عقب",
-          top: "بالا",
-        };
-        const sideFa = side ? sideFaMap[side] : undefined;
+      const damagedParts = selectedNorm.map((sp) => {
+        const catalogMeta = sp.catalogKey
+          ? catalogByKey.get(sp.catalogKey)
+          : sp.name
+            ? catalogByKey.get(catalogLikeKeyFromPart(sp))
+            : undefined;
+        const labelEnName = sp.name
+          .replace(/([a-z])([A-Z])/g, "$1 $2")
+          .replace(/_/g, " ")
+          .trim()
+          .replace(/\b\w/g, (c) => c.toUpperCase());
+        const ck = sp.catalogKey ?? catalogLikeKeyFromPart(sp);
         return {
-          id: selectedMeta?.id ?? catalogMeta?.id,
-          key: partKey,
-          side,
-          label_fa: sideFa ? `${label.fa} (${sideFa})` : label.fa,
-          label_en: label.en,
+          id: sp.id ?? catalogMeta?.id,
+          key: sp.name,
+          name: sp.name,
+          side: sp.side,
+          label_fa: sp.label_fa,
+          label_en: labelEnName,
           captured: hasDamagedPartCapture(
             claimCase.media?.damagedParts as any,
-            partKey,
+            ck,
+            selectedNorm,
           ),
         };
       });
@@ -4835,48 +4855,90 @@ export class ClaimRequestManagementService {
         },
       };
 
-      const selectedBefore = (claimCase.damage?.selectedParts || []) as string[];
+      const carType = claimCase.vehicle?.carType as ClaimVehicleTypeV2 | undefined;
+      const selectedOuterLegacy = (claimCase.damage as any)?.selectedOuterParts;
+      const selectedBeforeNorm = normalizeDamageSelectedParts(
+        claimCase.damage?.selectedParts,
+        carType,
+        selectedOuterLegacy,
+      );
+      let nextSelected = [...selectedBeforeNorm];
+      let nextMedia = coerceDamagedPartsMediaToArray(
+        claimCase.media?.damagedParts,
+        nextSelected,
+      );
+
       if (treatAsAngle && angleCanon) {
         updateData[`media.carAngles.${angleCanon}`] = captureData;
-        const unsetFieldKeys = legacyAngleDamagedPartFieldKeysToUnset(
-          angleCanon,
-          body.captureKey,
-          selectedBefore,
-        );
-        if (unsetFieldKeys.length) {
-          updateData.$unset = {};
-          for (const k of unsetFieldKeys) {
-            updateData.$unset[`media.damagedParts.${k}`] = "";
+        if (!Array.isArray(claimCase.media?.damagedParts)) {
+          const unsetFieldKeys = legacyAngleDamagedPartFieldKeysToUnset(
+            angleCanon,
+            body.captureKey,
+            claimCase.damage?.selectedParts,
+            carType,
+            selectedOuterLegacy,
+          );
+          if (unsetFieldKeys.length) {
+            updateData.$unset = {};
+            for (const k of unsetFieldKeys) {
+              updateData.$unset[`media.damagedParts.${k}`] = "";
+            }
           }
         }
       } else {
-        const canonicalPartKey = resolveCanonicalDamagedPartStorageKey(
+        let idx = resolvePartCaptureIndex(
           body.captureKey,
-          selectedBefore,
+          nextSelected,
+          nextMedia,
         );
-        updateData[`media.damagedParts.${canonicalPartKey}`] = captureData;
-        const raw = String(body.captureKey ?? "").trim();
-        const titleLegacy =
-          legacyDamagedPartTitleEnFromPartKey(canonicalPartKey);
-        const unsetPartKeys = new Set<string>();
-        if (raw && raw !== canonicalPartKey) unsetPartKeys.add(raw);
-        if (titleLegacy && titleLegacy !== canonicalPartKey) {
-          unsetPartKeys.add(titleLegacy);
+        if (isResendCapture && body.captureType === "part" && idx < 0) {
+          const added = normalizeDamageSelectedParts(
+            [body.captureKey],
+            carType,
+            undefined,
+          );
+          const row =
+            added[0] || {
+              id: null,
+              name: body.captureKey,
+              side: "",
+              label_fa: body.captureKey,
+              catalogKey: body.captureKey,
+            };
+          nextSelected.push(row);
+          idx = nextSelected.length - 1;
+          nextMedia.push({});
         }
-        if (unsetPartKeys.size) {
-          updateData.$unset = updateData.$unset || {};
-          for (const k of unsetPartKeys) {
-            updateData.$unset[`media.damagedParts.${k}`] = "";
-          }
+        if (idx < 0) {
+          throw new BadRequestException(
+            `Unknown damaged-part captureKey "${body.captureKey}". Use catalog id, 0-based index, or catalog key.`,
+          );
+        }
+        while (nextMedia.length <= idx) {
+          nextMedia.push({});
+        }
+        const base = nextSelected[idx] || {
+          id: null,
+          name: String(body.captureKey),
+          side: "",
+          label_fa: String(body.captureKey),
+        };
+        nextMedia[idx] = {
+          ...(base.id != null ? { id: base.id } : {}),
+          name: base.name,
+          side: base.side,
+          label_fa: base.label_fa,
+          ...(base.catalogKey ? { catalogKey: base.catalogKey } : {}),
+          ...nextMedia[idx],
+          ...captureData,
+        };
+        updateData["media.damagedParts"] = nextMedia;
+        if (
+          isResendCapture &&
+          nextSelected.length !== selectedBeforeNorm.length
+        ) {
+          updateData["damage.selectedParts"] = nextSelected;
         }
-      }
-
-      if (
-        isResendCapture &&
-        body.captureType === "part" &&
-        !selectedBefore.includes(body.captureKey)
-      ) {
-        updateData.$addToSet = { "damage.selectedParts": body.captureKey };
       }
 
       const updatedClaim = await this.claimCaseDbService.findByIdAndUpdate(
@@ -4911,10 +4973,14 @@ export class ClaimRequestManagementService {
         data && (data instanceof Map ? data.get(key) : data[key]);
 
       // Use same logic as getCaptureRequirementsV2 to determine completion
-      const anglesKeys = ['front', 'back', 'left', 'right'];
+      const anglesKeys = ["front", "back", "left", "right"];
       const carAnglesData = updatedClaim?.media?.carAngles as any;
       const damagedPartsData = updatedClaim?.media?.damagedParts as any;
-      const selectedParts = updatedClaim?.damage?.selectedParts || [];
+      const selectedNormAfter = normalizeDamageSelectedParts(
+        updatedClaim?.damage?.selectedParts,
+        updatedClaim?.vehicle?.carType as ClaimVehicleTypeV2,
+        (updatedClaim?.damage as any)?.selectedOuterParts,
+      );
 
       const anglesCaptured = anglesKeys.filter((k) =>
         hasClaimCarAngleCapture(
@@ -4923,12 +4989,17 @@ export class ClaimRequestManagementService {
           k as ClaimCarAngleKey,
         ),
       ).length;
-      const partsCaptured = selectedParts.filter((p) =>
-        hasDamagedPartCapture(damagedPartsData, p),
-      ).length;
+      const partsCaptured = selectedNormAfter.filter((sp) => {
+        const ck = sp.catalogKey ?? catalogLikeKeyFromPart(sp);
+        return hasDamagedPartCapture(
+          damagedPartsData,
+          ck,
+          selectedNormAfter,
+        );
+      }).length;
 
       const allCapturesComplete =
-        anglesCaptured >= 4 && partsCaptured >= selectedParts.length;
+        anglesCaptured >= 4 && partsCaptured >= selectedNormAfter.length;
 
       if (allCapturesComplete) {
         await this.claimCaseDbService.findByIdAndUpdate(claimRequestId, {
@@ -4955,7 +5026,8 @@ export class ClaimRequestManagementService {
         });
       }
 
-      const remaining = (4 - anglesCaptured) + (selectedParts.length - partsCaptured);
+      const remaining =
+        (4 - anglesCaptured) + (selectedNormAfter.length - partsCaptured);
       const message = allCapturesComplete
         ? 'All captures complete. Please proceed to upload required documents.'
         : `${body.captureType === 'angle' ? 'Angle' : 'Part'} captured successfully. ${remaining} captures remaining.`;
@@ -5193,11 +5265,29 @@ export class ClaimRequestManagementService {
         side: p.side,
       }));
 
-      const mergedSelected = [...(claimCase.damage?.selectedParts ?? [])];
+      const objectionCarType = claimCase.vehicle?.carType as
+        | ClaimVehicleTypeV2
+        | undefined;
+      const mergedNorm = normalizeDamageSelectedParts(
+        claimCase.damage?.selectedParts,
+        objectionCarType,
+        (claimCase.damage as any)?.selectedOuterParts,
+      );
+      const mergedKeys = new Set(mergedNorm.map((p) => partIdentityKey(p)));
       for (const np of newParts) {
-        const key = np.partName?.trim();
-        if (key && !mergedSelected.includes(key)) {
-          mergedSelected.push(key);
+        const name = np.partName?.trim();
+        if (!name) continue;
+        const side = String(np.side ?? "").trim();
+        const row = {
+          id: null as number | null,
+          name,
+          side,
+          label_fa: name,
+        };
+        const k = partIdentityKey(row);
+        if (!mergedKeys.has(k)) {
+          mergedNorm.push(row);
+          mergedKeys.add(k);
         }
       }
 
@@ -5215,7 +5305,7 @@ export class ClaimRequestManagementService {
           'workflow.currentStep': ClaimWorkflowStep.EXPERT_DAMAGE_ASSESSMENT,
           'workflow.nextStep': ClaimWorkflowStep.EXPERT_COST_EVALUATION,
           'evaluation.objection': objectionPayload,
-          'damage.selectedParts': mergedSelected,
+          'damage.selectedParts': mergedNorm,
         },
         $unset: {
           'evaluation.ownerPricedPartsApproval': "",
@@ -5695,47 +5785,56 @@ export class ClaimRequestManagementService {
         };
       }
 
-      const getPartLabelFa = (key: string): string => {
-        const labels: Record<string, string> = {
-          hood: 'کاپوت',
-          trunk: 'صندوق عقب',
-          roof: 'سقف',
-          front_right_door: 'درب جلو راست',
-          front_left_door: 'درب جلو چپ',
-          rear_right_door: 'درب عقب راست',
-          rear_left_door: 'درب عقب چپ',
-          front_bumper: 'سپر جلو',
-          rear_bumper: 'سپر عقب',
-          front_right_fender: 'گلگیر جلو راست',
-          front_left_fender: 'گلگیر جلو چپ',
-          rear_right_fender: 'گلگیر عقب راست',
-          rear_left_fender: 'گلگیر عقب چپ',
-        };
-        return labels[key] || key;
-      };
-
+      const carTypeDetails = claim.vehicle?.carType as ClaimVehicleTypeV2 | undefined;
+      const selectedNormDetails = normalizeDamageSelectedParts(
+        claim.damage?.selectedParts,
+        carTypeDetails,
+        (claim.damage as any)?.selectedOuterParts,
+      );
       const damagedPartsData = claim.media?.damagedParts as any;
-      const damagedParts: Record<
-        string,
-        { label_fa: string; captured: boolean; url?: string }
-      > = {};
       const resendPartKeys = normalizeResendPartKeys(
         claim.evaluation?.damageExpertResend?.resendCarParts,
       );
-      const partKeysForDetails = new Set<string>([
-        ...((claim.damage?.selectedParts || []) as string[]),
-        ...resendPartKeys,
-      ]);
-      for (const p of partKeysForDetails) {
-        const cap = getDamagedPartCaptureBlob(damagedPartsData, p) as
-          | { url?: string; path?: string }
-          | undefined;
-        damagedParts[p] = {
-          label_fa: getPartLabelFa(p),
+      const displayParts = [...selectedNormDetails];
+      const seenDetailKeys = new Set(
+        selectedNormDetails.map((p) => partIdentityKey(p)),
+      );
+      for (const rk of resendPartKeys) {
+        const extra =
+          normalizeDamageSelectedParts([rk], carTypeDetails, undefined)[0] ||
+          {
+            id: null,
+            name: rk,
+            side: "",
+            label_fa: rk,
+            catalogKey: rk,
+          };
+        const k = partIdentityKey(extra);
+        if (!seenDetailKeys.has(k)) {
+          displayParts.push(extra);
+          seenDetailKeys.add(k);
+        }
+      }
+
+      const damagedParts = displayParts.map((sp, index) => {
+        const ck = sp.catalogKey ?? catalogLikeKeyFromPart(sp);
+        const cap = getDamagedPartCaptureBlob(
+          damagedPartsData,
+          ck,
+          selectedNormDetails,
+        ) as { url?: string; path?: string; fileName?: string } | undefined;
+        return {
+          index,
+          id: sp.id,
+          name: sp.name,
+          side: sp.side,
+          label_fa: sp.label_fa,
           captured: !!cap,
           url: cap?.url || (cap?.path ? buildFileLink(cap.path) : undefined),
+          ...(cap?.path ? { path: cap.path } : {}),
+          ...(cap?.fileName ? { fileName: cap.fileName } : {}),
         };
-      }
+      });
 
       const er = claim.evaluation?.damageExpertResend;
       const expertResend =
@@ -5776,7 +5875,10 @@ export class ClaimRequestManagementService {
           }
         : undefined;
 
-      const mappedEvaluation = await this.mapEvaluationForClient(claim.evaluation);
+      const mappedEvaluation = await this.mapEvaluationForClient(
+        claim.evaluation,
+        claim.vehicle?.carType as ClaimVehicleTypeV2 | undefined,
+      );
 
       return {
         claimRequestId: claim._id.toString(),
@@ -5790,7 +5892,7 @@ export class ClaimRequestManagementService {
         blameRequestNo: claim.blameRequestNo,
         ...(ownerData ? { owner: ownerData } : {}),
         vehicle: claim.vehicle,
-        selectedParts: claim.damage?.selectedParts,
+        selectedParts: selectedNormDetails,
         otherParts: claim.damage?.otherParts,
         money: isExpertViewer ? moneyForExpert : moneyForUser,
         requiredDocuments: Object.keys(requiredDocumentsStatus).length > 0 ? requiredDocumentsStatus : undefined,
diff --git a/src/claim-request-management/dto/capture-part-v2.dto.ts b/src/claim-request-management/dto/capture-part-v2.dto.ts
index 5e005e2..12ef6f6 100644
--- a/src/claim-request-management/dto/capture-part-v2.dto.ts
+++ b/src/claim-request-management/dto/capture-part-v2.dto.ts
@@ -1,6 +1,5 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
 import { IsEnum, IsNotEmpty, IsString } from 'class-validator';
-import { CarAngle } from 'src/Types&Enums/claim-request-management/required-document-type.enum';
 
 /**
  * V2 DTO for capturing car angle or damaged part
@@ -18,7 +17,8 @@ export class CapturePartV2Dto {
   captureType: 'angle' | 'part';
 
   @ApiProperty({
-    description: 'Key of the angle or part being captured',
+    description:
+      'When captureType is angle: front | back | left | right. When part: catalog id as string (e.g. "101"), 0-based index (e.g. "0"), or full catalog key (e.g. left_backfender). Prefer id or index for parts.',
     example: 'front',
   })
   @IsNotEmpty({ message: 'Capture key is required' })
diff --git a/src/claim-request-management/dto/capture-requirements-v2.dto.ts b/src/claim-request-management/dto/capture-requirements-v2.dto.ts
index e118d0f..b2b2d90 100644
--- a/src/claim-request-management/dto/capture-requirements-v2.dto.ts
+++ b/src/claim-request-management/dto/capture-requirements-v2.dto.ts
@@ -72,10 +72,17 @@ export class CarAngleItem {
  */
 export class DamagedPartItem {
   @ApiProperty({
-    description: 'Part key',
-    example: 'hood',
+    description:
+      'Side-agnostic part name (matches catalog suffix); use with `side` to disambiguate',
+    example: 'backfender',
   })
-  key: string;
+  name: string;
+
+  @ApiPropertyOptional({
+    description: 'Vehicle side / region (left, right, front, back, top)',
+    example: 'left',
+  })
+  side?: string;
 
   @ApiProperty({
     description: 'Display label in Farsi',
@@ -83,6 +90,12 @@ export class DamagedPartItem {
   })
   label_fa: string;
 
+  @ApiPropertyOptional({
+    description: 'Deprecated: same as `name` (kept for older clients)',
+    example: 'backfender',
+  })
+  key?: string;
+
   @ApiProperty({
     description: 'Display label in English',
     example: 'Hood',
diff --git a/src/claim-request-management/dto/claim-details-v2.dto.ts b/src/claim-request-management/dto/claim-details-v2.dto.ts
index 51c7676..1017d6d 100644
--- a/src/claim-request-management/dto/claim-details-v2.dto.ts
+++ b/src/claim-request-management/dto/claim-details-v2.dto.ts
@@ -1,4 +1,5 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+import { DamageSelectedPartV2BodyDto } from './damage-selected-part-v2.dto';
 
 /** Suggested HTTP call for the owner UI (`pathTemplate`: replace placeholders). */
 export class ClaimDetailsOwnerNextActionV2Dto {
@@ -123,8 +124,11 @@ export class ClaimDetailsV2ResponseDto {
     plate?: any;
   };
 
-  @ApiPropertyOptional({ description: 'Selected outer damaged parts' })
-  selectedParts?: string[];
+  @ApiPropertyOptional({
+    description: 'Selected outer damaged parts (ordered objects with id, name, side, label_fa)',
+    type: [DamageSelectedPartV2BodyDto],
+  })
+  selectedParts?: DamageSelectedPartV2BodyDto[];
 
   @ApiPropertyOptional({ description: 'Selected other damaged parts' })
   otherParts?: string[];
@@ -141,8 +145,36 @@ export class ClaimDetailsV2ResponseDto {
   @ApiPropertyOptional({ description: 'Car angles captured' })
   carAngles?: Record<string, { captured: boolean; url?: string }>;
 
-  @ApiPropertyOptional({ description: 'Damaged parts captured' })
-  damagedParts?: Record<string, { label_fa: string; captured: boolean; url?: string }>;
+  @ApiPropertyOptional({
+    description:
+      'Per-part capture status and URLs (array index aligns with selectedParts; includes id, name, side, label_fa)',
+    type: 'array',
+    items: {
+      type: 'object',
+      properties: {
+        index: { type: 'number' },
+        id: { type: 'number', nullable: true },
+        name: { type: 'string' },
+        side: { type: 'string' },
+        label_fa: { type: 'string' },
+        captured: { type: 'boolean' },
+        url: { type: 'string' },
+        path: { type: 'string' },
+        fileName: { type: 'string' },
+      },
+    },
+  })
+  damagedParts?: Array<{
+    index: number;
+    id?: number | null;
+    name: string;
+    side: string;
+    label_fa: string;
+    captured: boolean;
+    url?: string;
+    path?: string;
+    fileName?: string;
+  }>;
 
   @ApiPropertyOptional({
     description:
diff --git a/src/claim-request-management/dto/damage-selected-part-v2.dto.ts b/src/claim-request-management/dto/damage-selected-part-v2.dto.ts
new file mode 100644
index 0000000..0a189c8
--- /dev/null
+++ b/src/claim-request-management/dto/damage-selected-part-v2.dto.ts
@@ -0,0 +1,27 @@
+import { ApiProperty, ApiPropertyOptional } from "@nestjs/swagger";
+import { IsInt, IsOptional, IsString } from "class-validator";
+
+/** Stored shape / API payload for one selected outer damaged part (V2). */
+export class DamageSelectedPartV2BodyDto {
+  @ApiPropertyOptional({ description: "Catalog id when from outer-parts catalog" })
+  @IsOptional()
+  @IsInt()
+  id?: number;
+
+  @ApiProperty({ example: "backfender" })
+  @IsString()
+  name: string;
+
+  @ApiProperty({ example: "left" })
+  @IsString()
+  side: string;
+
+  @ApiProperty({ example: "گلگیر عقب" })
+  @IsString()
+  label_fa: string;
+
+  @ApiPropertyOptional({ description: "Original catalog key, e.g. left_backfender" })
+  @IsOptional()
+  @IsString()
+  catalogKey?: string;
+}
diff --git a/src/claim-request-management/dto/select-outer-parts-v2.dto.ts b/src/claim-request-management/dto/select-outer-parts-v2.dto.ts
index 3f8a1e8..a4f7236 100644
--- a/src/claim-request-management/dto/select-outer-parts-v2.dto.ts
+++ b/src/claim-request-management/dto/select-outer-parts-v2.dto.ts
@@ -4,6 +4,7 @@ import {
   ClaimVehicleTypeV2,
   OuterPartSideV2,
 } from "src/static/outer-car-parts-catalog";
+import { DamageSelectedPartV2BodyDto } from "./damage-selected-part-v2.dto";
 
 /**
  * Enum for valid outer car parts that can be damaged
@@ -97,10 +98,11 @@ export class SelectOuterPartsV2ResponseDto {
   publicId: string;
 
   @ApiProperty({
-    description: 'Array of selected damaged parts',
-    example: ['hood', 'front_right_door', 'rear_bumper'],
+    description:
+      "Ordered selected parts: id, side-agnostic name, side, label_fa (and optional catalogKey)",
+    type: [DamageSelectedPartV2BodyDto],
   })
-  selectedParts: string[];
+  selectedParts: DamageSelectedPartV2BodyDto[];
 
   @ApiProperty({
     description: 'Selected part IDs',
diff --git a/src/claim-request-management/entites/schema/claim-case.damage.schema.ts b/src/claim-request-management/entites/schema/claim-case.damage.schema.ts
index 4065bbd..0c98b00 100644
--- a/src/claim-request-management/entites/schema/claim-case.damage.schema.ts
+++ b/src/claim-request-management/entites/schema/claim-case.damage.schema.ts
@@ -1,32 +1,15 @@
 import { Prop, Schema, SchemaFactory } from "@nestjs/mongoose";
+import { Schema as MongooseSchema } from "mongoose";
 import { CarDamagePartModel, CarDamagePartOtherModel } from "./car-parts.schema";
 
-@Schema({ _id: false })
-export class SelectedOuterPartV2 {
-  @Prop({ type: Number })
-  id: number;
-
-  @Prop({ type: String })
-  key: string;
-
-  @Prop({ type: String })
-  side: string;
-}
-export const SelectedOuterPartV2Schema =
-  SchemaFactory.createForClass(SelectedOuterPartV2);
-
 @Schema({ _id: false })
 export class ClaimDamageSelection {
   /**
-   * V2: Array of selected damaged outer car part names
-   * Examples: ['hood', 'front_right_door', 'rear_bumper']
+   * V2: Selected outer damaged parts (ordered). Prefer objects
+   * `{ id, name, side, label_fa, catalogKey? }`; legacy string keys are still accepted until migrated.
    */
-  @Prop({ type: [String], default: [] })
-  selectedParts?: string[];
-
-  /** Structured selected outer parts with id + side for better downstream handling. */
-  @Prop({ type: [SelectedOuterPartV2Schema], default: [] })
-  selectedOuterParts?: SelectedOuterPartV2[];
+  @Prop({ type: [MongooseSchema.Types.Mixed], default: [] })
+  selectedParts?: unknown[];
 
   /**
    * V2: Array of selected other (non-body) damaged parts
@@ -46,4 +29,3 @@ export class ClaimDamageSelection {
 }
 export const ClaimDamageSelectionSchema =
   SchemaFactory.createForClass(ClaimDamageSelection);
-
diff --git a/src/claim-request-management/entites/schema/claim-case.evaluation.schema.ts b/src/claim-request-management/entites/schema/claim-case.evaluation.schema.ts
index a757237..91ba7d4 100644
--- a/src/claim-request-management/entites/schema/claim-case.evaluation.schema.ts
+++ b/src/claim-request-management/entites/schema/claim-case.evaluation.schema.ts
@@ -13,11 +13,12 @@ export class ClaimPartPricing {
   partId: string;
 
   /**
-   * Legacy string or structured `{ part, side }` from expert reply DTOs (V1/V2).
+   * Unified outer-part snapshot `{ id?, name, side, label_fa, catalogKey? }` (same as
+   * `damage.selectedParts` / capture). Legacy: string or `{ part?, side? }` (expert UI).
    * Must be Mixed — objects cannot cast to String.
    */
   @Prop({ type: MongooseSchema.Types.Mixed })
-  carPartDamage?: string | { part?: string; side?: string };
+  carPartDamage?: unknown;
 
   @Prop({ type: String })
   typeOfDamage?: string;
diff --git a/src/claim-request-management/entites/schema/claim-case.media.schema.ts b/src/claim-request-management/entites/schema/claim-case.media.schema.ts
index 7dced36..fd3186d 100644
--- a/src/claim-request-management/entites/schema/claim-case.media.schema.ts
+++ b/src/claim-request-management/entites/schema/claim-case.media.schema.ts
@@ -1,5 +1,5 @@
 import { Prop, Schema, SchemaFactory } from "@nestjs/mongoose";
-import { Types } from "mongoose";
+import { Schema as MongooseSchema, Types } from "mongoose";
 import { AiImagesModel } from "./ai-image.schema";
 import { CarGreenCardModel } from "./car-green-card.schema";
 import { ImageRequiredModel } from "./image-required.schema";
@@ -20,6 +20,39 @@ export class CapturedImage {
 }
 export const CapturedImageSchema = SchemaFactory.createForClass(CapturedImage);
 
+/** One row per selected damaged part (index-aligned with `damage.selectedParts`). */
+@Schema({ _id: false })
+export class DamagedPartMediaV2Row {
+  @Prop({ type: Number })
+  id?: number;
+
+  @Prop({ type: String })
+  name?: string;
+
+  @Prop({ type: String })
+  side?: string;
+
+  @Prop({ type: String })
+  label_fa?: string;
+
+  @Prop({ type: String })
+  catalogKey?: string;
+
+  @Prop({ type: String })
+  path?: string;
+
+  @Prop({ type: String })
+  fileName?: string;
+
+  @Prop({ type: String })
+  url?: string;
+
+  @Prop({ type: Date })
+  capturedAt?: Date;
+}
+export const DamagedPartMediaV2RowSchema =
+  SchemaFactory.createForClass(DamagedPartMediaV2Row);
+
 @Schema({ _id: false })
 export class ClaimMedia {
   @Prop({ type: CarGreenCardModel })
@@ -46,15 +79,10 @@ export class ClaimMedia {
   carAngles?: Map<string, CapturedImage>;
 
   /**
-   * V2: Damaged parts captures
-   * Map of part key to captured image
+   * V2: Damaged parts captures — prefer an array (index matches `damage.selectedParts`).
+   * Legacy documents may store a plain object map keyed by part slug until migrated on write.
    */
-  @Prop({
-    type: Map,
-    of: CapturedImageSchema,
-    default: () => ({}),
-  })
-  damagedParts?: Map<string, CapturedImage>;
+  @Prop({ type: MongooseSchema.Types.Mixed })
+  damagedParts?: DamagedPartMediaV2Row[] | Record<string, unknown>;
 }
 export const ClaimMediaSchema = SchemaFactory.createForClass(ClaimMedia);
-
diff --git a/src/expert-claim/dto/claim-detail-v2.dto.ts b/src/expert-claim/dto/claim-detail-v2.dto.ts
index b02b672..29ad993 100644
--- a/src/expert-claim/dto/claim-detail-v2.dto.ts
+++ b/src/expert-claim/dto/claim-detail-v2.dto.ts
@@ -1,5 +1,6 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
 import { BlameRequestType } from 'src/Types&Enums/blame-request-management/blameRequestType.enum';
+import { DamageSelectedPartV2BodyDto } from 'src/claim-request-management/dto/damage-selected-part-v2.dto';
 
 export class ClaimDetailV2ResponseDto {
   @ApiProperty()
@@ -64,8 +65,11 @@ export class ClaimDetailV2ResponseDto {
   @ApiPropertyOptional({ description: 'Blame request number', example: 'BL12345' })
   blameRequestNo?: string;
 
-  @ApiPropertyOptional({ description: 'Selected outer damaged parts' })
-  selectedParts?: string[];
+  @ApiPropertyOptional({
+    description: 'Selected outer damaged parts (id, name, side, label_fa)',
+    type: [DamageSelectedPartV2BodyDto],
+  })
+  selectedParts?: DamageSelectedPartV2BodyDto[];
 
   @ApiPropertyOptional({ description: 'Selected other damaged parts' })
   otherParts?: string[];
@@ -81,8 +85,32 @@ export class ClaimDetailV2ResponseDto {
   @ApiPropertyOptional({ description: 'Car angles captured' })
   carAngles?: Record<string, { captured: boolean; url?: string }>;
 
-  @ApiPropertyOptional({ description: 'Damaged parts captured' })
-  damagedParts?: Record<string, { captured: boolean; url?: string }>;
+  @ApiPropertyOptional({
+    description:
+      'Per-part captures (array index matches selectedParts; includes id, name, side, label_fa, captured, url)',
+    type: 'array',
+    items: {
+      type: 'object',
+      properties: {
+        index: { type: 'number' },
+        id: { type: 'number', nullable: true },
+        name: { type: 'string' },
+        side: { type: 'string' },
+        label_fa: { type: 'string' },
+        captured: { type: 'boolean' },
+        url: { type: 'string' },
+      },
+    },
+  })
+  damagedParts?: Array<{
+    index: number;
+    id?: number | null;
+    name: string;
+    side: string;
+    label_fa: string;
+    captured: boolean;
+    url?: string;
+  }>;
 
   @ApiPropertyOptional({
     description:
diff --git a/src/expert-claim/dto/expert-claim-v2.dto.ts b/src/expert-claim/dto/expert-claim-v2.dto.ts
index e8c0c5c..16c3ca8 100644
--- a/src/expert-claim/dto/expert-claim-v2.dto.ts
+++ b/src/expert-claim/dto/expert-claim-v2.dto.ts
@@ -7,20 +7,57 @@ import {
   IsOptional,
   ValidateNested,
   IsEnum,
+  IsInt,
 } from 'class-validator';
 import { Type } from 'class-transformer';
 import { ClaimRequiredDocumentType } from 'src/Types&Enums/claim-request-management/required-document-type.enum';
 import { DamagedPartItem } from 'src/claim-request-management/dto/capture-requirements-v2.dto';
 import { DaghiOption } from 'src/Types&Enums/claim-request-management/daghi-option.enum';
 
-export class CarPartDamageV2Dto {
-  @ApiProperty({ example: 'left' })
-  @IsString()
-  side: string;
+/**
+ * Damage line part reference — same unified shape as `damage.selectedParts` / catalog rows.
+ * Send either `{ name, side, label_fa?, id?, catalogKey? }` or legacy `{ part, side }`
+ * (e.g. part `backFender`, side `left`); the API persists canonical `{ id, name, side, label_fa, catalogKey? }`.
+ */
+export class ExpertReplyCarPartDamageV2Dto {
+  @ApiPropertyOptional({ description: 'Catalog id when known' })
+  @IsOptional()
+  @IsInt()
+  id?: number;
 
-  @ApiProperty({ example: 'front_door' })
+  @ApiPropertyOptional({
+    description: 'Side-agnostic catalog segment, e.g. backfender',
+    example: 'backfender',
+  })
+  @IsOptional()
   @IsString()
-  part: string;
+  name?: string;
+
+  @ApiPropertyOptional({ example: 'left' })
+  @IsOptional()
+  @IsString()
+  side?: string;
+
+  @ApiPropertyOptional({
+    description:
+      'Farsi label; optional when server can resolve from catalog + vehicle.carType',
+  })
+  @IsOptional()
+  @IsString()
+  label_fa?: string;
+
+  @ApiPropertyOptional({ example: 'left_backfender' })
+  @IsOptional()
+  @IsString()
+  catalogKey?: string;
+
+  @ApiPropertyOptional({
+    description: 'Legacy expert UI: camelCase segment with `side`, e.g. backFender',
+    example: 'backFender',
+  })
+  @IsOptional()
+  @IsString()
+  part?: string;
 }
 
 /** Same shape as V1 {@link PartsList} `daghi` (damage expert reply). */
@@ -54,10 +91,10 @@ export class PartPricingV2Dto {
   @IsNotEmpty()
   partId: string;
 
-  @ApiProperty({ type: CarPartDamageV2Dto })
+  @ApiProperty({ type: ExpertReplyCarPartDamageV2Dto })
   @ValidateNested()
-  @Type(() => CarPartDamageV2Dto)
-  carPartDamage: CarPartDamageV2Dto;
+  @Type(() => ExpertReplyCarPartDamageV2Dto)
+  carPartDamage: ExpertReplyCarPartDamageV2Dto;
 
   @ApiProperty({ example: 'Minor' })
   @IsString()
diff --git a/src/expert-claim/dto/update-claim-damaged-parts-v2.dto.ts b/src/expert-claim/dto/update-claim-damaged-parts-v2.dto.ts
index 1e01288..11d6aad 100644
--- a/src/expert-claim/dto/update-claim-damaged-parts-v2.dto.ts
+++ b/src/expert-claim/dto/update-claim-damaged-parts-v2.dto.ts
@@ -1,25 +1,20 @@
 import { ApiProperty } from "@nestjs/swagger";
 import {
   ArrayMinSize,
-  ArrayUnique,
   IsArray,
-  IsEnum,
-  IsNotEmpty,
+  ValidateNested,
 } from "class-validator";
-import { OuterCarPart } from "src/claim-request-management/dto/select-outer-parts-v2.dto";
+import { Type } from "class-transformer";
+import { DamageSelectedPartV2BodyDto } from "src/claim-request-management/dto/damage-selected-part-v2.dto";
 
 export class UpdateClaimDamagedPartsV2Dto {
   @ApiProperty({
-    description: "Updated list of selected damaged outer parts",
-    enum: OuterCarPart,
-    isArray: true,
-    example: ["hood", "front_bumper", "front_left_fender"],
+    type: [DamageSelectedPartV2BodyDto],
+    description: "Full replacement list of selected damaged outer parts (id, name, side, label_fa)",
   })
-  @IsNotEmpty()
   @IsArray()
   @ArrayMinSize(1)
-  @ArrayUnique()
-  @IsEnum(OuterCarPart, { each: true })
-  selectedParts: OuterCarPart[];
+  @ValidateNested({ each: true })
+  @Type(() => DamageSelectedPartV2BodyDto)
+  selectedParts: DamageSelectedPartV2BodyDto[];
 }
-
diff --git a/src/expert-claim/expert-claim.service.ts b/src/expert-claim/expert-claim.service.ts
index 369fec2..6f57538 100644
--- a/src/expert-claim/expert-claim.service.ts
+++ b/src/expert-claim/expert-claim.service.ts
@@ -73,8 +73,16 @@ import {
 import {
   getClaimCarAngleCaptureBlob,
   getDamagedPartCaptureBlob,
+  hasDamagedPartCapture,
   type ClaimCarAngleKey,
 } from "src/helpers/claim-car-angle-media";
+import {
+  catalogLikeKeyFromPart,
+  coerceDamagedPartsMediaToArray,
+  normalizeCarPartDamageForExpertReply,
+  normalizeDamageSelectedParts,
+} from "src/helpers/outer-damage-parts";
+import { ClaimVehicleTypeV2 } from "src/static/outer-car-parts-catalog";
 import { snapshotFromDamageExpert } from "src/helpers/expert-profile-snapshot";
 import { DamageExpertModel } from "src/users/entities/schema/damage-expert.schema";
 import { SmsOrchestrationService } from "src/sms-orchestration/sms-orchestration.service";
@@ -2530,10 +2538,27 @@ export class ExpertClaimService {
       });
     }
 
-    const processedParts =
+    const carTypeSubmit = claim.vehicle?.carType as ClaimVehicleTypeV2 | undefined;
+    const daghiNormalized =
       reply.parts?.length > 0
         ? this.validateAndNormalizeDaghiForExpertReplyV2(reply.parts)
         : [];
+    const processedParts = daghiNormalized.map((p) => {
+      let carPartDamage: Record<string, unknown>;
+      try {
+        carPartDamage = normalizeCarPartDamageForExpertReply(
+          p.carPartDamage as unknown,
+          carTypeSubmit,
+        );
+      } catch (err) {
+        throw new BadRequestException(
+          `Invalid carPartDamage for part ${p.partId}: ${
+            err instanceof Error ? err.message : String(err)
+          }`,
+        );
+      }
+      return { ...p, carPartDamage };
+    });
 
     const { mixedFactorAndPrice, allFactorLines } = classifyV2ExpertPricingParts(
       processedParts,
@@ -3319,40 +3344,35 @@ export class ExpertClaimService {
       };
     }
 
-    // Build damaged parts map
-    const getPartLabelFa = (key: string): string => {
-      const labels: Record<string, string> = {
-        hood: "کاپوت",
-        trunk: "صندوق عقب",
-        roof: "سقف",
-        front_right_door: "درب جلو راست",
-        front_left_door: "درب جلو چپ",
-        rear_right_door: "درب عقب راست",
-        rear_left_door: "درب عقب چپ",
-        front_bumper: "سپر جلو",
-        rear_bumper: "سپر عقب",
-        front_right_fender: "گلگیر جلو راست",
-        front_left_fender: "گلگیر جلو چپ",
-        rear_right_fender: "گلگیر عقب راست",
-        rear_left_fender: "گلگیر عقب چپ",
-      };
-      return labels[key] || key;
-    };
-    const damagedPartsData = claim.media?.damagedParts as any;
-    const damagedParts: Record<
-      string,
-      { label_fa: string; captured: boolean; url?: string }
-    > = {};
-    for (const p of claim.damage?.selectedParts || []) {
-      const cap = getDamagedPartCaptureBlob(damagedPartsData, p) as
-        | { url?: string; path?: string }
-        | undefined;
-      damagedParts[p] = {
-        label_fa: getPartLabelFa(p),
-        captured: !!cap,
+    // Build damaged parts list (aligned with normalized selected parts)
+    const carTypeExpert = claim.vehicle?.carType as ClaimVehicleTypeV2 | undefined;
+    const selectedNormExpert = normalizeDamageSelectedParts(
+      claim.damage?.selectedParts,
+      carTypeExpert,
+      (claim.damage as any)?.selectedOuterParts,
+    );
+    const damagedPartsDataExpert = claim.media?.damagedParts as any;
+    const damagedParts = selectedNormExpert.map((sp, index) => {
+      const ck = sp.catalogKey ?? catalogLikeKeyFromPart(sp);
+      const cap = getDamagedPartCaptureBlob(
+        damagedPartsDataExpert,
+        ck,
+        selectedNormExpert,
+      ) as { url?: string; path?: string } | undefined;
+      return {
+        index,
+        id: sp.id,
+        name: sp.name,
+        side: sp.side,
+        label_fa: sp.label_fa,
+        captured: hasDamagedPartCapture(
+          damagedPartsDataExpert,
+          ck,
+          selectedNormExpert,
+        ),
         url: cap?.url || (cap?.path ? buildFileLink(cap.path) : undefined),
       };
-    }
+    });
 
     // --- Combine both branches of the conflict, preserving necessary logic from both ---
 
@@ -3482,7 +3502,7 @@ export class ExpertClaimService {
       blameRequestId: claim.blameRequestId?.toString(),
       blameRequestNo: claim.blameRequestNo,
       money: moneyPayload,
-      selectedParts: claim.damage?.selectedParts,
+      selectedParts: selectedNormExpert,
       otherParts: claim.damage?.otherParts,
       requiredDocuments:
         Object.keys(requiredDocumentsStatus).length > 0
@@ -3537,35 +3557,70 @@ export class ExpertClaimService {
 
     const damagedPartsEditSnapshot = await this.snapshotDamageExpert(actor.sub);
 
+    const carType = claim.vehicle?.carType as ClaimVehicleTypeV2 | undefined;
+    const previousNorm = normalizeDamageSelectedParts(
+      (claim as any).damage?.selectedParts,
+      carType,
+      (claim as any).damage?.selectedOuterParts,
+    );
+    const prevMedia = coerceDamagedPartsMediaToArray(
+      (claim as any).media?.damagedParts,
+      previousNorm,
+    );
+
+    const nextNorm = body.selectedParts.map((p) => ({
+      id: p.id ?? null,
+      name: String(p.name || "").trim(),
+      side: String(p.side || ""),
+      label_fa: String(p.label_fa || "").trim() || String(p.name || "").trim(),
+      ...(p.catalogKey?.trim() ? { catalogKey: p.catalogKey.trim() } : {}),
+    }));
+
+    const matchPreviousIndex = (
+      next: (typeof nextNorm)[0],
+      previous: typeof previousNorm,
+    ): number => {
+      if (next.id != null) {
+        const byId = previous.findIndex((x) => x.id === next.id);
+        if (byId >= 0) return byId;
+      }
+      if (next.catalogKey) {
+        const byCk = previous.findIndex((x) => x.catalogKey === next.catalogKey);
+        if (byCk >= 0) return byCk;
+      }
+      return previous.findIndex(
+        (x) => x.name === next.name && x.side === next.side,
+      );
+    };
+
+    const nextMedia = nextNorm.map((sp) => {
+      const j = matchPreviousIndex(sp, previousNorm);
+      const row =
+        j >= 0 && prevMedia[j] && typeof prevMedia[j] === "object"
+          ? (prevMedia[j] as Record<string, unknown>)
+          : {};
+      return {
+        ...(sp.id != null ? { id: sp.id } : {}),
+        name: sp.name,
+        side: sp.side,
+        label_fa: sp.label_fa,
+        ...(sp.catalogKey ? { catalogKey: sp.catalogKey } : {}),
+        ...(row.path ? { path: row.path } : {}),
+        ...(row.fileName ? { fileName: row.fileName } : {}),
+        ...(row.url ? { url: row.url } : {}),
+        ...(row.capturedAt ? { capturedAt: row.capturedAt } : {}),
+      };
+    });
+
     const previous = Array.isArray((claim as any).damage?.selectedParts)
       ? [...(claim as any).damage.selectedParts]
       : [];
-    const selectedParts = body.selectedParts as string[];
 
     const $set: Record<string, unknown> = {
-      "damage.selectedParts": selectedParts,
+      "damage.selectedParts": nextNorm,
+      "media.damagedParts": nextMedia,
     };
 
-    const damagedPartsMedia = (claim as any).media?.damagedParts;
-    if (damagedPartsMedia) {
-      const selectedSet = new Set(selectedParts);
-      if (damagedPartsMedia instanceof Map) {
-        const m = new Map(damagedPartsMedia as Map<string, unknown>);
-        for (const key of Array.from(m.keys())) {
-          if (!selectedSet.has(key)) m.delete(key);
-        }
-        $set["media.damagedParts"] = Object.fromEntries(m.entries());
-      } else {
-        const o = {
-          ...(damagedPartsMedia as Record<string, unknown>),
-        };
-        for (const key of Object.keys(o)) {
-          if (!selectedSet.has(key)) delete o[key];
-        }
-        $set["media.damagedParts"] = o;
-      }
-    }
-
     await this.claimCaseDbService.findByIdAndUpdate(claimRequestId, {
       $set,
       $push: {
@@ -3579,7 +3634,7 @@ export class ExpertClaimService {
           timestamp: new Date(),
           metadata: {
             previousSelectedParts: previous,
-            selectedParts,
+            selectedParts: nextNorm,
             ...(damagedPartsEditSnapshot && {
               expertProfileSnapshot: damagedPartsEditSnapshot,
             }),
@@ -3590,7 +3645,7 @@ export class ExpertClaimService {
 
     return {
       claimRequestId: claim._id.toString(),
-      selectedParts,
+      selectedParts: nextNorm,
       previousSelectedParts: previous,
       message: "Damaged parts updated successfully.",
     };
diff --git a/src/helpers/claim-car-angle-media.ts b/src/helpers/claim-car-angle-media.ts
index de79122..51f1039 100644
--- a/src/helpers/claim-car-angle-media.ts
+++ b/src/helpers/claim-car-angle-media.ts
@@ -5,6 +5,13 @@
  * into {@code media.damagedParts} and broke step-completion checks.
  */
 
+import type { DamageSelectedPartV2 } from "src/helpers/outer-damage-parts";
+import {
+  damageSelectedPartsToLookupStrings,
+  mediaRowHasCapture,
+  resolvePartCaptureIndex,
+} from "src/helpers/outer-damage-parts";
+
 export const CLAIM_CAR_ANGLE_KEYS = ["front", "back", "left", "right"] as const;
 export type ClaimCarAngleKey = (typeof CLAIM_CAR_ANGLE_KEYS)[number];
 
@@ -54,9 +61,17 @@ export function hasClaimCarAngleCapture(
 export function legacyAngleDamagedPartFieldKeysToUnset(
   canonical: ClaimCarAngleKey,
   rawCaptureKey: string,
-  selectedParts: string[],
+  selectedParts: unknown,
+  carType?: import("src/static/outer-car-parts-catalog").ClaimVehicleTypeV2,
+  selectedOuterPartsLegacy?: unknown,
 ): string[] {
-  const selected = new Set((selectedParts ?? []).map((p) => String(p)));
+  const selected = new Set(
+    damageSelectedPartsToLookupStrings(
+      selectedParts,
+      carType,
+      selectedOuterPartsLegacy,
+    ),
+  );
   const variants = new Set(
     [
       rawCaptureKey,
@@ -89,9 +104,23 @@ function normalizeDamagedPartKeyLoose(s: string): string {
 export function getDamagedPartCaptureBlob(
   damagedPartsData: unknown,
   partKey: string,
+  selectedNormalized?: DamageSelectedPartV2[],
 ): unknown {
   const pk = String(partKey ?? "").trim();
   if (!pk || damagedPartsData == null) return undefined;
+  if (Array.isArray(damagedPartsData)) {
+    const norm = selectedNormalized ?? [];
+    const idx = resolvePartCaptureIndex(
+      pk,
+      norm,
+      damagedPartsData as Record<string, unknown>[],
+    );
+    if (idx >= 0) {
+      const row = (damagedPartsData as unknown[])[idx];
+      if (mediaRowHasCapture(row)) return row;
+    }
+    return undefined;
+  }
   let b = getCaptureBlob(damagedPartsData, pk);
   if (b) return b;
   const titleEn = legacyDamagedPartTitleEnFromPartKey(pk);
@@ -120,8 +149,12 @@ export function getDamagedPartCaptureBlob(
 export function hasDamagedPartCapture(
   damagedPartsData: unknown,
   partKey: string,
+  selectedNormalized?: DamageSelectedPartV2[],
 ): boolean {
-  return getDamagedPartCaptureBlob(damagedPartsData, partKey) != null;
+  return (
+    getDamagedPartCaptureBlob(damagedPartsData, partKey, selectedNormalized) !=
+    null
+  );
 }
 
 /**
@@ -129,11 +162,17 @@ export function hasDamagedPartCapture(
  */
 export function resolveCanonicalDamagedPartStorageKey(
   captureKeyRaw: string,
-  selectedParts: string[],
+  selectedParts: unknown,
+  carType?: import("src/static/outer-car-parts-catalog").ClaimVehicleTypeV2,
+  selectedOuterPartsLegacy?: unknown,
 ): string {
   const raw = String(captureKeyRaw ?? "").trim();
   if (!raw) return raw;
-  const parts = (selectedParts ?? []).map((p) => String(p).trim()).filter(Boolean);
+  const parts = damageSelectedPartsToLookupStrings(
+    selectedParts,
+    carType,
+    selectedOuterPartsLegacy,
+  );
   if (parts.includes(raw)) return raw;
   const n = normalizeDamagedPartKeyLoose(raw);
   const matches = parts.filter((p) => normalizeDamagedPartKeyLoose(p) === n);
diff --git a/src/helpers/claim-expert-resend.ts b/src/helpers/claim-expert-resend.ts
index 5d55773..0bbe23a 100644
--- a/src/helpers/claim-expert-resend.ts
+++ b/src/helpers/claim-expert-resend.ts
@@ -1,5 +1,8 @@
 import { ClaimCaseStatus } from "src/Types&Enums/claim-request-management/claim-case-status.enum";
 import { ClaimWorkflowStep } from "src/Types&Enums/claim-request-management/claim-workflow-steps.enum";
+import { getDamagedPartCaptureBlob } from "./claim-car-angle-media";
+import { normalizeDamageSelectedParts } from "./outer-damage-parts";
+import { ClaimVehicleTypeV2 } from "src/static/outer-car-parts-catalog";
 import { canonicalizeResendDocumentKey } from "./claim-resend-document-keys";
 
 export function resendRequestHasPayload(r: {
@@ -59,8 +62,12 @@ export function isRequiredDocumentUploaded(claim: any, documentKey: string): boo
 export function hasDamagedPartCapture(claim: any, partKey: string): boolean {
   const data = claim?.media?.damagedParts;
   if (!data) return false;
-  const cap = data instanceof Map ? data.get(partKey) : data[partKey];
-  return !!cap;
+  const norm = normalizeDamageSelectedParts(
+    claim?.damage?.selectedParts,
+    claim?.vehicle?.carType as ClaimVehicleTypeV2 | undefined,
+    claim?.damage?.selectedOuterParts,
+  );
+  return getDamagedPartCaptureBlob(data, partKey, norm) != null;
 }
 
 /**
diff --git a/src/helpers/outer-damage-parts.ts b/src/helpers/outer-damage-parts.ts
new file mode 100644
index 0000000..fe904dd
--- /dev/null
+++ b/src/helpers/outer-damage-parts.ts
@@ -0,0 +1,700 @@
+import {
+  ClaimVehicleTypeV2,
+  OUTER_PARTS_BY_CAR_TYPE,
+  OuterPartCatalogItem,
+  OuterPartSideV2,
+} from "src/static/outer-car-parts-catalog";
+
+/** Stored on `damage.selectedParts` and used when resolving captures / APIs. */
+export type DamageSelectedPartV2 = {
+  id: number | null;
+  name: string;
+  side: string;
+  label_fa: string;
+  /** Original catalog key when known (e.g. `left_backfender`). */
+  catalogKey?: string;
+};
+
+const SIDE_SET = new Set<string>(Object.values(OuterPartSideV2));
+
+/** Farsi side suffix for disambiguated labels, e.g. `گلگیر عقب (چپ)`. */
+const SIDE_LABEL_FA: Record<string, string> = {
+  [OuterPartSideV2.LEFT]: "چپ",
+  [OuterPartSideV2.RIGHT]: "راست",
+  [OuterPartSideV2.FRONT]: "جلو",
+  [OuterPartSideV2.BACK]: "عقب",
+  [OuterPartSideV2.TOP]: "بالا",
+};
+
+function outerCatalogListForItem(item: OuterPartCatalogItem): OuterPartCatalogItem[] {
+  for (const list of Object.values(OUTER_PARTS_BY_CAR_TYPE)) {
+    if (list.some((x) => x.key === item.key || x.id === item.id)) {
+      return list;
+    }
+  }
+  return [item];
+}
+
+/**
+ * When multiple catalog rows share the same `titleFa` (e.g. left/right rear fender),
+ * append ` (side)` in Farsi so clients can display `label_fa` alone.
+ */
+export function disambiguateOuterPartLabelFa(
+  baseTitleFa: string,
+  side: string,
+  sameTypeCatalog: OuterPartCatalogItem[],
+): string {
+  const t = String(baseTitleFa ?? "").trim();
+  const s = String(side ?? "").trim();
+  if (!t || !sameTypeCatalog?.length) return t;
+  const norm = (x: string) => x.trim();
+  const siblings = sameTypeCatalog.filter((p) => norm(p.titleFa) === norm(t));
+  if (siblings.length <= 1) return t;
+  const sideFa = SIDE_LABEL_FA[s] || s;
+  if (!sideFa) return t;
+  return `${t} (${sideFa})`;
+}
+
+const CATALOG_ITEM_BY_ID = new Map<number, OuterPartCatalogItem>();
+for (const list of Object.values(OUTER_PARTS_BY_CAR_TYPE)) {
+  for (const it of list) {
+    CATALOG_ITEM_BY_ID.set(it.id, it);
+  }
+}
+
+function findCatalogItemByKey(key: string): OuterPartCatalogItem | undefined {
+  for (const list of Object.values(OUTER_PARTS_BY_CAR_TYPE)) {
+    const hit = list.find((x) => x.key === key);
+    if (hit) return hit;
+  }
+  return undefined;
+}
+
+/** Strip leading `left_|right_|…` when present so `name` is side-agnostic for clients. */
+export function splitCatalogKeyToNameAndSide(
+  fullKey: string,
+): { name: string; side: string } {
+  const t = String(fullKey ?? "").trim();
+  const i = t.indexOf("_");
+  if (i <= 0) return { name: t, side: "" };
+  const head = t.slice(0, i);
+  if (SIDE_SET.has(head)) {
+    return { side: head, name: t.slice(i + 1) };
+  }
+  return { name: t, side: "" };
+}
+
+export function catalogLikeKeyFromPart(
+  part: Pick<DamageSelectedPartV2, "side" | "name">,
+): string {
+  if (part.side) return `${part.side}_${part.name}`;
+  return part.name;
+}
+
+export function catalogItemToSelectedPart(
+  item: OuterPartCatalogItem,
+  sameTypeCatalog?: OuterPartCatalogItem[],
+): DamageSelectedPartV2 {
+  const { name, side } = splitCatalogKeyToNameAndSide(item.key);
+  const sideEff = String(side || item.side || "");
+  const list = sameTypeCatalog ?? outerCatalogListForItem(item);
+  const label_fa = disambiguateOuterPartLabelFa(item.titleFa, sideEff, list);
+  return {
+    id: item.id,
+    name,
+    side: sideEff,
+    label_fa,
+    catalogKey: item.key,
+  };
+}
+
+const LEGACY_SLUG_LABEL_FA: Record<string, string> = {
+  hood: "کاپوت",
+  trunk: "صندوق عقب",
+  roof: "سقف",
+  front_right_door: "درب جلو راست",
+  front_left_door: "درب جلو چپ",
+  rear_right_door: "درب عقب راست",
+  rear_left_door: "درب عقب چپ",
+  front_bumper: "سپر جلو",
+  rear_bumper: "سپر عقب",
+  front_right_fender: "گلگیر جلو راست",
+  front_left_fender: "گلگیر جلو چپ",
+  rear_right_fender: "گلگیر عقب راست",
+  rear_left_fender: "گلگیر عقب چپ",
+};
+
+function labelFaForUnknownSlug(slug: string): string {
+  return LEGACY_SLUG_LABEL_FA[slug] || slug;
+}
+
+function toNum(v: unknown): number | null {
+  if (v == null || v === "") return null;
+  const n = Number(v);
+  return Number.isFinite(n) ? n : null;
+}
+
+/**
+ * Normalize `damage.selectedParts` from DB (strings, legacy objects, or new objects)
+ * into a stable list for APIs and capture resolution.
+ */
+export function normalizeDamageSelectedParts(
+  raw: unknown,
+  carType?: ClaimVehicleTypeV2,
+  selectedOuterPartsLegacy?: unknown,
+): DamageSelectedPartV2[] {
+  const arr = Array.isArray(raw) ? raw : [];
+  const legacyOuter = Array.isArray(selectedOuterPartsLegacy)
+    ? selectedOuterPartsLegacy
+    : [];
+  const byKeyFromLegacy = new Map<string, { id?: number; side?: string }>();
+  for (const o of legacyOuter) {
+    if (o && typeof o === "object" && "key" in (o as object)) {
+      const rec = o as { key?: string; id?: number; side?: string };
+      const k = String(rec.key || "").trim();
+      if (k) byKeyFromLegacy.set(k, { id: rec.id, side: rec.side });
+    }
+  }
+  const catalog = carType ? OUTER_PARTS_BY_CAR_TYPE[carType] : undefined;
+  const byCatalogKey = catalog
+    ? new Map(catalog.map((c) => [c.key, c]))
+    : undefined;
+
+  const out: DamageSelectedPartV2[] = [];
+  for (const el of arr) {
+    if (el == null) continue;
+    if (typeof el === "string") {
+      const s = el.trim();
+      if (!s) continue;
+      let catItem = byCatalogKey?.get(s) ?? findCatalogItemByKey(s);
+      if (!catItem && /^\d+$/.test(s)) {
+        catItem = CATALOG_ITEM_BY_ID.get(Number(s));
+      }
+      if (catItem) {
+        const list = catalog ?? outerCatalogListForItem(catItem);
+        out.push(catalogItemToSelectedPart(catItem, list));
+        continue;
+      }
+      const hint = byKeyFromLegacy.get(s);
+      if (hint?.side || hint?.id != null) {
+        const split = splitCatalogKeyToNameAndSide(s);
+        if (split.side) {
+          const sideEff = hint?.side ?? split.side;
+          const baseFa = labelFaForUnknownSlug(s);
+          const list = catalog ?? [];
+          const label_fa =
+            catalog?.length && baseFa
+              ? disambiguateOuterPartLabelFa(baseFa, String(sideEff), catalog)
+              : baseFa;
+          out.push({
+            id: hint?.id ?? null,
+            name: split.name,
+            side: sideEff,
+            label_fa,
+            catalogKey: s,
+          });
+          continue;
+        }
+      }
+      out.push({
+        id: hint?.id ?? null,
+        name: s,
+        side: hint?.side ?? "",
+        label_fa: labelFaForUnknownSlug(s),
+        catalogKey: s,
+      });
+      continue;
+    }
+    if (typeof el === "object") {
+      const o = el as Record<string, unknown>;
+      if (typeof o.name === "string" && o.name.trim()) {
+        let name = o.name.trim();
+        const inner = splitCatalogKeyToNameAndSide(name);
+        if (inner.side && inner.name) {
+          name = inner.name;
+        }
+        const side = typeof o.side === "string" ? o.side : inner.side || "";
+        const id = toNum(o.id);
+        const ck =
+          typeof o.catalogKey === "string" && o.catalogKey.trim()
+            ? o.catalogKey.trim()
+            : undefined;
+        let catItem: OuterPartCatalogItem | undefined;
+        if (catalog && byCatalogKey) {
+          if (ck) catItem = byCatalogKey.get(ck);
+          if (!catItem && id != null) catItem = catalog.find((c) => c.id === id);
+          if (!catItem && side && name) {
+            catItem = byCatalogKey.get(catalogLikeKeyFromPart({ side, name }));
+          }
+        } else {
+          if (ck) catItem = findCatalogItemByKey(ck);
+          if (!catItem && id != null) {
+            catItem = CATALOG_ITEM_BY_ID.get(id!) ?? undefined;
+          }
+          if (!catItem && side && name) {
+            catItem = findCatalogItemByKey(
+              catalogLikeKeyFromPart({ side, name }),
+            );
+          }
+        }
+        const fallbackLabel =
+          typeof o.label_fa === "string" && o.label_fa.trim()
+            ? o.label_fa.trim()
+            : typeof o.labelFa === "string" && o.labelFa.trim()
+              ? (o.labelFa as string).trim()
+              : name;
+        const listForDis = catalog?.length
+          ? catalog
+          : catItem
+            ? outerCatalogListForItem(catItem)
+            : [];
+        const label_fa =
+          catItem && listForDis.length
+            ? disambiguateOuterPartLabelFa(
+                catItem.titleFa,
+                catItem.side,
+                listForDis,
+              )
+            : fallbackLabel;
+        out.push({
+          id,
+          name,
+          side,
+          label_fa,
+          catalogKey: ck,
+        });
+        continue;
+      }
+      if (typeof o.key === "string" && o.key.trim()) {
+        const k = o.key.trim();
+        const cat =
+          byCatalogKey?.get(k) ??
+          findCatalogItemByKey(k) ??
+          (toNum(o.id) != null ? CATALOG_ITEM_BY_ID.get(toNum(o.id)!) : undefined);
+        if (cat) {
+          const list = catalog ?? outerCatalogListForItem(cat);
+          out.push(catalogItemToSelectedPart(cat, list));
+          continue;
+        }
+        const split = splitCatalogKeyToNameAndSide(k);
+        out.push({
+          id: toNum(o.id),
+          name: split.side ? split.name : k,
+          side: typeof o.side === "string" ? o.side : split.side,
+          label_fa:
+            typeof o.label_fa === "string" && o.label_fa.trim()
+              ? (o.label_fa as string).trim()
+              : labelFaForUnknownSlug(k),
+          catalogKey: k,
+        });
+      }
+    }
+  }
+  return out;
+}
+
+export function partIdentityKey(p: DamageSelectedPartV2): string {
+  if (p.id != null && Number.isFinite(p.id)) return `id:${p.id}`;
+  return `${p.side}|${p.name}`;
+}
+
+function normPartSegment(s: string): string {
+  return String(s ?? "").replace(/[^a-z0-9]/gi, "").toLowerCase();
+}
+
+function looseCatalogNameMatch(
+  catalogItem: OuterPartCatalogItem,
+  expertPart: string,
+): boolean {
+  const { name } = splitCatalogKeyToNameAndSide(catalogItem.key);
+  return normPartSegment(name) === normPartSegment(expertPart);
+}
+
+/**
+ * Map legacy expert reply `{ part: "backFender", side: "left" }` to a catalog row
+ * when `carType` is known (or scan all types if omitted).
+ */
+export function findCatalogItemFromLegacyExpertPart(
+  part: string,
+  side: string,
+  carType?: ClaimVehicleTypeV2,
+): OuterPartCatalogItem | undefined {
+  const s = String(side ?? "").toLowerCase().trim();
+  const lists = carType
+    ? [OUTER_PARTS_BY_CAR_TYPE[carType]].filter(Boolean) as OuterPartCatalogItem[][]
+    : (Object.values(OUTER_PARTS_BY_CAR_TYPE) as OuterPartCatalogItem[][]);
+  for (const catalog of lists) {
+    if (!catalog?.length) continue;
+    for (const it of catalog) {
+      if (String(it.side).toLowerCase() !== s) continue;
+      if (looseCatalogNameMatch(it, part)) return it;
+    }
+  }
+  return undefined;
+}
+
+function selectedPartToStoredRecord(p: DamageSelectedPartV2): Record<string, unknown> {
+  const r: Record<string, unknown> = {
+    name: p.name,
+    side: String(p.side || "").toLowerCase(),
+    label_fa: p.label_fa,
+  };
+  if (p.id != null && Number.isFinite(p.id)) r.id = p.id;
+  if (p.catalogKey) r.catalogKey = p.catalogKey;
+  return r;
+}
+
+/**
+ * Canonical shape for `evaluation.damageExpertReply*.parts[].carPartDamage`
+ * (same fields as owner `damage.selectedParts` items).
+ */
+export function normalizeCarPartDamageForExpertReply(
+  raw: unknown,
+  carType?: ClaimVehicleTypeV2,
+): Record<string, unknown> {
+  if (raw == null) {
+    throw new Error("carPartDamage is required");
+  }
+  if (typeof raw === "string") {
+    const s = raw.trim();
+    if (!s) throw new Error("carPartDamage is empty");
+    const fromKey = findCatalogItemByKey(s);
+    if (fromKey) {
+      const list = outerCatalogListForItem(fromKey);
+      return selectedPartToStoredRecord(
+        catalogItemToSelectedPart(fromKey, list),
+      );
+    }
+    return { name: s, side: "", label_fa: s };
+  }
+  if (typeof raw !== "object" || raw === null || Array.isArray(raw)) {
+    throw new Error("Invalid carPartDamage");
+  }
+  const o = raw as Record<string, unknown>;
+  const legacyPart =
+    typeof o.part === "string" && o.part.trim() ? o.part.trim() : "";
+  const legacySide =
+    typeof o.side === "string" && o.side.trim()
+      ? o.side.trim().toLowerCase()
+      : "";
+  const name = typeof o.name === "string" && o.name.trim() ? o.name.trim() : "";
+  const sideIn =
+    typeof o.side === "string" && o.side.trim()
+      ? o.side.trim().toLowerCase()
+      : "";
+
+  if (name && sideIn) {
+    const id = toNum(o.id);
+    const ck =
+      typeof o.catalogKey === "string" && o.catalogKey.trim()
+        ? o.catalogKey.trim()
+        : undefined;
+    const catalog = carType ? OUTER_PARTS_BY_CAR_TYPE[carType] : undefined;
+    let catItem: OuterPartCatalogItem | undefined;
+    if (catalog) {
+      const byKey = new Map(catalog.map((c) => [c.key, c]));
+      if (ck) catItem = byKey.get(ck);
+      if (!catItem && id != null) catItem = catalog.find((c) => c.id === id);
+      if (!catItem) {
+        catItem = byKey.get(catalogLikeKeyFromPart({ side: sideIn, name }));
+      }
+    }
+    if (!catItem && id != null) {
+      catItem = CATALOG_ITEM_BY_ID.get(id!) ?? undefined;
+    }
+    const list = catalog?.length
+      ? catalog
+      : catItem
+        ? outerCatalogListForItem(catItem)
+        : [];
+    if (catItem && list.length) {
+      return selectedPartToStoredRecord(
+        catalogItemToSelectedPart(catItem, list),
+      );
+    }
+    const label_fa =
+      typeof o.label_fa === "string" && o.label_fa.trim()
+        ? o.label_fa.trim()
+        : name;
+    const out: Record<string, unknown> = {
+      name,
+      side: sideIn,
+      label_fa,
+    };
+    if (id != null) out.id = id;
+    if (ck) out.catalogKey = ck;
+    return out;
+  }
+
+  if (legacyPart && legacySide) {
+    const catItem = findCatalogItemFromLegacyExpertPart(
+      legacyPart,
+      legacySide,
+      carType,
+    );
+    if (catItem) {
+      const list = outerCatalogListForItem(catItem);
+      return selectedPartToStoredRecord(
+        catalogItemToSelectedPart(catItem, list),
+      );
+    }
+    const sideFa = SIDE_LABEL_FA[legacySide] || legacySide;
+    return {
+      name: legacyPart,
+      side: legacySide,
+      label_fa: `${legacyPart} (${sideFa})`,
+    };
+  }
+
+  throw new Error("carPartDamage must include side and (name or part)");
+}
+
+/** Best-effort migration for API output; never throws. */
+export function migrateExpertReplyCarPartDamageToUnified(
+  raw: unknown,
+  carType?: ClaimVehicleTypeV2,
+): Record<string, unknown> {
+  try {
+    return normalizeCarPartDamageForExpertReply(raw, carType);
+  } catch {
+    if (raw && typeof raw === "object" && !Array.isArray(raw)) {
+      return { ...(raw as Record<string, unknown>) };
+    }
+    return { name: String(raw ?? ""), side: "", label_fa: String(raw ?? "") };
+  }
+}
+
+/** Stable string for factor DB rows / logs from unified or legacy `carPartDamage`. */
+export function carPartDamageLabelForFactorRecord(cd: unknown): string {
+  if (cd == null) return "";
+  if (typeof cd === "string") return cd.trim();
+  if (typeof cd === "object") {
+    const o = cd as Record<string, unknown>;
+    if (typeof o.label_fa === "string" && o.label_fa.trim()) {
+      return o.label_fa.trim();
+    }
+    if (typeof o.part === "string" && o.part.trim()) {
+      const side = typeof o.side === "string" ? o.side.trim() : "";
+      const sideFa = side ? SIDE_LABEL_FA[side.toLowerCase()] || side : "";
+      return sideFa ? `${o.part.trim()} (${sideFa})` : o.part.trim();
+    }
+    if (typeof o.name === "string" && o.name.trim()) {
+      const side = typeof o.side === "string" ? o.side.trim() : "";
+      const sideFa = side ? SIDE_LABEL_FA[side.toLowerCase()] || side : "";
+      return sideFa ? `${o.name.trim()} (${sideFa})` : o.name.trim();
+    }
+  }
+  return String(cd);
+}
+
+export function mediaRowHasCapture(row: unknown): boolean {
+  if (!row || typeof row !== "object") return false;
+  const r = row as { path?: string; url?: string };
+  return !!(r.path || r.url);
+}
+
+/** Whether `media.damagedParts` is the new array shape (possibly empty). */
+export function isDamagedPartsMediaArray(data: unknown): boolean {
+  return Array.isArray(data);
+}
+
+function getLegacyMapRecord(
+  data: unknown,
+): Record<string, unknown> | null {
+  if (data == null) return null;
+  if (data instanceof Map) {
+    return Object.fromEntries((data as Map<string, unknown>).entries());
+  }
+  if (typeof data === "object" && !Array.isArray(data)) {
+    return data as Record<string, unknown>;
+  }
+  return null;
+}
+
+function getCaptureBlobLoose(
+  legacyMap: Record<string, unknown>,
+  partKey: string,
+): unknown {
+  const pk = String(partKey ?? "").trim();
+  if (!pk) return undefined;
+  let b = legacyMap[pk];
+  if (b) return b;
+  const target = pk.toLowerCase().replace(/[\s_-]/g, "");
+  for (const k of Object.keys(legacyMap)) {
+    if (k.toLowerCase().replace(/[\s_-]/g, "") === target) {
+      return legacyMap[k];
+    }
+  }
+  return undefined;
+}
+
+/**
+ * Align legacy `media.damagedParts` map with `selected` order → array rows
+ * (metadata + any existing capture blobs).
+ */
+export function migrateLegacyDamagedPartsMapToArray(
+  legacyMap: Record<string, unknown>,
+  selected: DamageSelectedPartV2[],
+): Record<string, unknown>[] {
+  return selected.map((sp) => {
+    const keysTry = [
+      sp.catalogKey,
+      catalogLikeKeyFromPart(sp),
+      sp.name,
+    ].filter(Boolean) as string[];
+    let blob: unknown;
+    for (const k of keysTry) {
+      blob = getCaptureBlobLoose(legacyMap, k);
+      if (blob) break;
+    }
+    const base = {
+      id: sp.id ?? undefined,
+      name: sp.name,
+      side: sp.side,
+      label_fa: sp.label_fa,
+    };
+    if (blob && typeof blob === "object") {
+      const c = blob as Record<string, unknown>;
+      return {
+        ...base,
+        ...(c.path ? { path: c.path } : {}),
+        ...(c.fileName ? { fileName: c.fileName } : {}),
+        ...(c.url ? { url: c.url } : {}),
+        ...(c.capturedAt ? { capturedAt: c.capturedAt } : {}),
+      };
+    }
+    return { ...base };
+  });
+}
+
+/**
+ * Always returns an array view: migrates legacy map → array when needed.
+ */
+export function coerceDamagedPartsMediaToArray(
+  damagedPartsData: unknown,
+  selected: DamageSelectedPartV2[],
+): Record<string, unknown>[] {
+  if (Array.isArray(damagedPartsData)) {
+    const arr = damagedPartsData.map((x) =>
+      typeof x === "object" && x ? { ...(x as object) } : {},
+    ) as Record<string, unknown>[];
+    while (arr.length < selected.length) {
+      arr.push({});
+    }
+    return arr;
+  }
+  const legacy = getLegacyMapRecord(damagedPartsData);
+  if (legacy && selected.length) {
+    return migrateLegacyDamagedPartsMapToArray(legacy, selected);
+  }
+  return [];
+}
+
+/**
+ * Resolve `captureKey` to an index into `selected` / `media.damagedParts`.
+ *
+ * Supported keys: catalog id (number string), array index when unambiguous,
+ * full catalog key (`left_backfender`), or `side_name` matching stored part.
+ */
+export function resolvePartCaptureIndex(
+  captureKeyRaw: string,
+  selected: DamageSelectedPartV2[],
+  damagedPartsArray?: Record<string, unknown>[],
+): number {
+  const raw = String(captureKeyRaw ?? "").trim();
+  if (!raw) return -1;
+
+  if (selected.length) {
+    for (let i = 0; i < selected.length; i++) {
+      const sp = selected[i];
+      if (sp.catalogKey === raw) return i;
+      if (catalogLikeKeyFromPart(sp) === raw) return i;
+    }
+
+    if (/^\d+$/.test(raw)) {
+      const n = Number(raw);
+      const byId = selected.findIndex((p) => p.id === n);
+      if (byId >= 0) return byId;
+      const hasIdCollision = selected.some((p) => p.id === n);
+      if (!hasIdCollision && n >= 0 && n < selected.length) return n;
+    }
+
+    const loose = raw.toLowerCase().replace(/[\s_-]/g, "");
+    for (let i = 0; i < selected.length; i++) {
+      const sp = selected[i];
+      const cand = [
+        sp.catalogKey,
+        catalogLikeKeyFromPart(sp),
+        sp.name,
+      ].filter(Boolean) as string[];
+      for (const c of cand) {
+        if (c.toLowerCase().replace(/[\s_-]/g, "") === loose) return i;
+      }
+    }
+  }
+
+  if (damagedPartsArray && damagedPartsArray.length) {
+    for (let i = 0; i < damagedPartsArray.length; i++) {
+      const row = damagedPartsArray[i];
+      if (!row || typeof row !== "object") continue;
+      const id = toNum((row as { id?: unknown }).id);
+      if (id != null && String(id) === raw) return i;
+      const ck = String((row as { catalogKey?: unknown }).catalogKey || "");
+      if (ck && ck === raw) return i;
+      const name = String((row as { name?: unknown }).name || "");
+      const side = String((row as { side?: unknown }).side || "");
+      if (side && name && `${side}_${name}` === raw) return i;
+    }
+  }
+
+  return -1;
+}
+
+export function mediaRowOrLegacyHasCapture(
+  damagedPartsData: unknown,
+  partKey: string,
+  selected: DamageSelectedPartV2[],
+): boolean {
+  if (damagedPartsData == null) return false;
+  if (Array.isArray(damagedPartsData)) {
+    const idx = resolvePartCaptureIndex(partKey, selected, damagedPartsData as any[]);
+    if (idx < 0) return false;
+    return mediaRowHasCapture((damagedPartsData as unknown[])[idx]);
+  }
+  const legacy = getLegacyMapRecord(damagedPartsData);
+  if (!legacy) return false;
+  return !!getCaptureBlobLoose(legacy, partKey);
+}
+
+export function selectedPartsLegacyStringsForAngles(
+  selected: DamageSelectedPartV2[],
+): string[] {
+  const s = new Set<string>();
+  for (const p of selected) {
+    if (p.catalogKey) s.add(p.catalogKey);
+    s.add(catalogLikeKeyFromPart(p));
+    if (p.name) s.add(p.name);
+  }
+  return [...s];
+}
+
+/** String keys that might appear under legacy `media.damagedParts` for this selection. */
+export function damageSelectedPartsToLookupStrings(
+  raw: unknown,
+  carType?: ClaimVehicleTypeV2,
+  selectedOuterPartsLegacy?: unknown,
+): string[] {
+  const norm = normalizeDamageSelectedParts(
+    raw,
+    carType,
+    selectedOuterPartsLegacy,
+  );
+  if (norm.length) return selectedPartsLegacyStringsForAngles(norm);
+  if (Array.isArray(raw)) {
+    return (raw as unknown[])
+      .filter((x): x is string => typeof x === "string")
+      .map((x) => x.trim())
+      .filter(Boolean);
+  }
+  return [];
+}