InMotion WS2146 Wheel Seal - Front Right, Rear or Rear Outer

Wheel Seal for Differential Pinion Service

The InMotion WS2146 wheel seal is built for differential pinion sealing applications that require a precise barrier against dirt, moisture, and gear oil loss. Made from nitrile with a durable seal case and spring materials, it supports reliable sealing performance in demanding driveline service.

Compatible With select Jeep, Ford, Pontiac, Buick, Oldsmobile, and Hyundai applications, this seal matches common axle service needs for rear, rear outer, and front right positions. The WS2146 is sized for a 1.67 in inside diameter, 2.6 in outside diameter, and 0.375 in thickness.

Key Features

• Nitrile sealing material for oil resistance and dependable sealing
• Inside diameter: 1.67 in / 42.3 mm
• Outside diameter: 2.6 in / 65.5 mm
• Housing bore: 2.56 in / 65 mm
• Thickness: 0.375 in / 9.5 mm
• External markings: 1.687 x 2.560 x 0.375/0.472
• Spring material: JIS G3141
• Seal case material: JIS G3521

Detailed Description

InMotion WS2146 is a differential pinion seal engineered to help maintain a tight seal at the axle assembly and reduce contamination at sensitive internal components. Its nitrile construction supports resistance to fluid exposure, while the specified dimensions help ensure proper seating in the housing bore and around the shaft diameter. This makes it a practical choice for axle seal replacement on vehicles such as Jeep Grand Cherokee, Jeep Liberty, Ford Bronco, and Ford F-150, as well as classic Pontiac GTO and Buick Skylark applications listed in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination from road debris and moisture
• Seal wear that can lead to driveline fluid loss
• Maintenance needs on rear, rear outer, and front right axle positions
• Replacement during axle service on Dana Spicer and Spicer-equipped vehicles

Installation Notes and Tips

• Verify shaft diameter, housing bore, and thickness before installation.
• Inspect the pinion surface and housing for scoring, corrosion, or debris.
• Clean the sealing area thoroughly so the nitrile lip can seat evenly.
• Use the vehicle-specific axle configuration in the fitment list, including notes such as Spicer 35, Spicer 44, HD axle, or Dana Spicer 35.
• Confirm position carefully: rear, rear outer, or front right depending on application.

Quality Assurance

InMotion manufactures this seal with specified material and dimensional standards to support consistent fit and sealing performance across the listed applications. Part number WS2146 is identified for direct reference when ordering or matching service parts.