InMotion WS370132A Wheel Seal - Front Inner or Rear Inner

Wheel Seal for Differential Pinion Service

The InMotion WS370132A wheel seal is built for differential pinion sealing where contamination control and leak prevention matter. Made from nitrile and sized for a 3.5 shaft diameter, 4.543 housing bore, 4.558 outside diameter, and 0.788 width, it provides a precise sealing interface for driveline service.

Use this seal when servicing a differential pinion on applications that require a tight, durable barrier against moisture, dirt, and gear oil loss. InMotion WS370132A is a direct-fit sealing component for technicians and DIY repair work focused on driveline reliability.

Key Features

• Nitrile construction for sealing performance in driveline environments
• 3.5 shaft diameter for the pinion shaft interface
• 4.543 housing bore and 4.558 outside diameter for accurate fitment
• 0.788 width for proper seal depth and contact
• Helps maintain a secure barrier against contaminants and fluid leakage
• InMotion WS370132A for differential pinion seal replacement

Detailed Description

InMotion WS370132A is engineered as a differential pinion seal for driveline and axle service. The nitrile sealing material is selected for its ability to maintain contact at the pinion area while helping keep debris and moisture out of the differential housing. With its specified dimensions, this seal supports accurate installation where the shaft diameter, housing bore, and outside diameter must match the application.

For vehicle service on models such as Ford F-150 and Chevrolet Silverado, the correct pinion seal helps preserve differential fluid integrity and reduce wear from contamination. When replacing a worn seal, matching the part number WS370132A and the dimensional specs is important for a proper repair.

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 issues during differential service on Ford F-150 and Chevrolet Silverado applications
• Noise or wear concerns linked to low or contaminated differential fluid

Installation Notes and Tips

Confirm shaft diameter, housing bore, outside diameter, and seal width before installation. Inspect the pinion surface for scoring or corrosion, and clean the sealing area thoroughly before pressing the seal into place. Use proper installation tools to keep the seal square and avoid damaging the nitrile lip during assembly. Verify the differential is filled to the correct fluid level after service.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and high-quality materials for differential service. Part number WS370132A should be matched to the vehicle application and measured specifications before installation.