InMotion WS9912 Wheel Seal - Rear, Rear Inner or Rear Outer

Wheel Seal for Rear Axles

InMotion WS9912 is a nitrile wheel seal built for rear axle applications that need a precise sealing surface and dependable leak control. It is sized for a 1.875 in inside diameter, 2.865 in outside diameter, and 0.47 in width to match the listed axle and housing dimensions.

Use this seal when servicing rear, rear inner, or rear outer positions on select Jeep, Volvo, Ford, Honda, Isuzu, and Cadillac applications. The WS9912 is a practical replacement for vehicles such as Jeep Wrangler, Jeep Cherokee, and Volvo 740 rear outer seal applications.

Key Features

• Nitrile construction for sealing performance in driveline service
• Inside diameter: 1.875 in
• Outside diameter: 2.865 in
• Width: 0.47 in
• Shaft diameter: 1.875 in
• Housing bore: 2.877 in
• Fits rear, rear inner, and rear outer positions depending on application
• Part number WS9912 for catalog and service matching

Detailed Description

InMotion WS9912 is a wheel seal for driveline and axle service where the sealing lip must maintain contact with the axle shaft and housing bore. Its nitrile material is selected for durability in rotating axle environments, helping maintain a stable seal around the specified 1.875 in shaft diameter and 2.877 in housing bore. This makes it a direct-fit service part for many rear axle applications across Jeep Wrangler, Jeep TJ, Jeep Cherokee, Volvo 240, Volvo 740, Ford F-150, and related platforms listed in the fitment data.

This part cross-references common aftermarket service references for the same application, including National 9912 and Timken 9912.

What It Helps Address

• Rear axle oil seepage at the seal surface
• Leakage caused by worn or damaged sealing lips
• Service issues from an out-of-spec axle shaft sealing area
• Noise or contamination concerns related to failing axle seals
• Maintenance on rear outer or rear inner axle seal locations

Installation Notes and Tips

Confirm shaft diameter, housing bore, width, and position before installation. The WS9912 is listed for rear, rear inner, and rear outer applications depending on vehicle and axle configuration, including Jeep models with Spicer 44 and Spicer 44-1 Heavy Duty Axle notes. Clean the sealing surface thoroughly and inspect the axle shaft for wear or grooves before installing the new seal. If the shaft surface is damaged, the repair should address that condition before final assembly.

For fitment-specific service, verify the exact vehicle application: Fits 2007-2018 Jeep Wrangler, rear; Fits 1997-2006 Jeep TJ, rear with Spicer 44-1 Heavy Duty Axle; Fits 1991-1995 Volvo 940, rear outer; Fits 1976-1983 Ford F-100, rear with Spicer 44 Axle.

Quality Assurance

InMotion WS9912 is manufactured as a service replacement wheel seal with dimensional specifications provided for application matching. The nitrile construction and defined bore and shaft measurements support consistent installation on the listed driveline and axle applications.