InMotion WS223550 Wheel Seal - Rear or Rear Inner

Wheel Seal for Rear Inner Applications

The InMotion WS223550 wheel seal is built for rear inner differential pinion sealing where contamination control matters. Made from nitrile, it provides a tight sealing surface to help keep moisture and debris out while supporting leak resistance in demanding driving conditions.

Key Features

• Nitrile construction for sealing performance and fluid resistance
• Inside diameter: 1.378 in.
• Outside diameter: 2.287 in.
• Width: 0.394 in.
• Shaft diameter: 1.378 in.
• Housing bore: 2.283 in.
• Rear inner fitment for select Mazda and Mitsubishi applications

Detailed Description

InMotion WS223550 is a precision-engineered seal for the differential pinion area, where a consistent barrier is needed to protect internal components from contaminants and fluid loss. The nitrile material is selected for sealing durability, while the listed dimensions help support proper seating in the housing and around the shaft. This part is a direct-fit service item for select rear inner applications, including Fits 1987-1993 Mazda B2200, Rear Inner; Fits 1987-1993 Mazda B2600, Rear Inner; Fits 1987-1990 Mitsubishi Van, Rear Inner; and Fits 1987 Mazda B2000, Rear Inner from chassis #505889. For buyers searching for a rear inner wheel seal for 1987-1993 Mazda B2200 or 1987-1993 Mazda B2600, WS223550 provides the specified sealing dimensions and application coverage.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Seal Helps Address

• Gear oil seepage at the differential pinion seal area
• Contamination from road debris and moisture entering the housing
• Premature wear of internal differential components caused by seal failure
• Loss of sealing integrity in rear inner service locations
• Fitment issues when replacing a worn seal with the correct dimensions

Installation Notes and Tips

Confirm the housing bore, shaft diameter, and seal width before installation. Clean the sealing surface thoroughly, inspect the pinion area for scoring or wear, and install the seal squarely to avoid distortion. Verify vehicle application by year, make, model, and rear inner position before service. WS223550 is listed for select Mazda B2000, Mazda B2200, Mazda B2600, and Mitsubishi Van rear inner applications.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and nitrile material selection to support reliable differential sealing in service.