Differential Side Gear Thrust Washer 9-41219608-0 for ISUZU NHR NKR — OEM 9412196080, IZUMI, Verify Dimensions

The Differential Side Gear Thrust Washer 9-41219608-0 (9412196080) is listed for ISUZU NHR and NKR light trucks. This washer sits between the differential side gear and its housing, maintaining correct gear alignment and absorbing axial forces generated during vehicle turning.

How It Works: Inside the differential assembly, side gears mesh with pinion gears to distribute torque to the axle shafts. The thrust washer acts as a wear surface between the side gear and the differential case, reducing friction and preventing metal-to-metal contact. A worn or missing thrust washer allows excessive gear end-play, causing whining, clunking, or accelerated gear wear.

• Fitment Confirmed Multiple supplier listings consistently list this OEM number for ISUZU NHR / NKR applications.
• Brand & Certification IZUMI brand referenced; ISO/TS16949 certification claimed by one supplier.
• Weight Recorded 0.02 kg net weight — per one supplier listing.
• Functional Description Conflict — Critical Some suppliers describe this part as a Differential Side Gear Thrust Washer, while others describe the same number as a Final Drive Pinion Shim. These are different components in the differential assembly. Confirm the required part type with the seller before ordering.
• Dimensional Data Gap — Critical Inner diameter, outer diameter, and thickness are not disclosed in any search result. A thrust washer must match the side gear bore and case recess exactly. Measure the original part before ordering.
• Supplier Data Quality Multiple supplier pages contain obvious machine-translation errors in the specification field (e.g., "Geschlechtskrankheit," "malattia sterile"). Rely on the OEM number and fitment data rather than translated specification fields.

• Whining or humming noise from the rear axle, especially during turns
• Clunking or metallic knocking when shifting from drive to reverse
• Excessive differential gear end-play (measured during rebuild)
• Visible wear, scoring, or discoloration on the washer surface
• Metal particles in differential fluid

1. Drain differential fluid. Remove the driveshaft and axle shafts as required.
2. Remove the differential carrier from the axle housing.
3. Disassemble the differential case. Remove the side gears and existing thrust washers.
4. Clean all components. Inspect side gears, pinion gears, and case for wear.
5. Install new thrust washer(s) in the correct position. Verify side gear end-play against OEM specification.
6. Reassemble the differential case. Set carrier bearing preload and ring-and-pinion backlash per OEM procedure.
7. Reinstall carrier, axle shafts, and driveshaft. Refill with specified differential fluid.
8. Test-drive and listen for abnormal noise during turns.

• Inspect differential fluid for metal particles at every fluid change.
• Replace thrust washers during any differential rebuild if wear or scoring is evident.
• Check for abnormal noise during turns at every major service.