InMotion WS42763 Wheel Seal - Rear Inner

InMotion Differential Pinion Seal for Jeep CJ5

InMotion WS42763 is a nitrile differential pinion seal built to create a secure barrier at the pinion area and help keep contaminants out of the differential. It is listed for rear inner applications on Jeep CJ5 models, including 1959-1971 Jeep CJ5 fitments.

Key Features

• Nitrile construction for sealing performance in driveline service
• Inside diameter: 1.375 in.
• Outside diameter: 2.286 in.
• Width: 0.25 in.
• Shaft diameter: 1.375 in.
• Housing bore: 2.282 in.
• Fits rear inner differential pinion applications on Jeep CJ5
• Part number: WS42763

Detailed Description

This InMotion wheel seal is engineered for differential pinion sealing where a precise fit matters. The nitrile sealing material is selected for driveline use, helping maintain a tight seal against moisture and debris while supporting leak control around the pinion area. For Jeep CJ5 owners searching for a rear inner differential pinion seal, WS42763 provides the dimensional specifications needed for a direct-match replacement on listed applications.

Compatible With 1959-1961 Jeep CJ5, rear inner; 1962 Jeep CJ5, rear inner with 2.286 in. outside diameter; and 1963-1971 Jeep CJ5, rear inner. The part number WS42763 is useful when verifying the correct seal for Jeep CJ5 differential service and matching the housing bore and shaft diameter requirements.

What It Helps Solve

• Gear oil leakage at the differential pinion seal area
• Contamination from dirt, road debris, and moisture entering the differential
• Wear caused by an aging or hardened seal surface
• Seal mismatch during Jeep CJ5 rear inner differential service
• Loss of sealing integrity around the pinion housing

Installation Notes and Tips

Confirm the shaft diameter, housing bore, and outside diameter before installation. Clean the sealing surface and inspect the pinion area for wear, scoring, or corrosion that could affect seal performance. Verify the application against the vehicle year and rear inner position before replacing the existing seal.

Quality Assurance

InMotion manufactures this seal with dimensional specifications intended for accurate fitment on the listed Jeep CJ5 applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.