InMotion WS228250 Engine Crankshaft Seal - Rear

Overview

InMotion WS228250 is a rear differential pinion seal built to keep contaminants out and lubricant in. It uses fluoro-elastomer construction for dependable sealing performance in service applications.

Key Features

• Fluoro-elastomer material for sealing durability and chemical resistance.
• Precision dimensions for a secure fit at the pinion shaft and housing bore.
• Helps reduce fluid loss and protect internal differential components.
• Fits rear differential applications on Mazda, Kia, Ford, and Mercury vehicles.

Detailed Description

This InMotion differential pinion seal is engineered as a direct sealing component for rear axle service. The WS228250 is specified with a 3.268-inch inside diameter, 3.945-inch outside diameter, and 3.936-inch housing bore, giving technicians the dimensional reference needed for proper installation. Its fluoro-elastomer construction is selected for sealing performance where heat, fluid exposure, and contamination control matter. Compatible With 2011-2014 Mazda 2, rear; 2001-2005 Kia Rio, rear; and 1999-2005 Mazda Miata, rear, this seal also covers additional rear applications across Mazda, Ford, Kia, and Mercury platforms. The WS228250 is a practical replacement when the original seal shows wear, seepage, or contamination-related failure. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

• Rear differential fluid seepage at the pinion area.
• Contamination entering the differential housing.
• Seal wear from age, heat, or mileage.
• Noise or driveline concerns linked to low lubricant level.
• Service replacement during differential maintenance.

Installation Notes

Verify shaft diameter and housing bore before installation. Clean the sealing surface thoroughly and inspect the pinion area for wear or scoring that could affect seal life. Confirm rear fitment by year, make, and model before ordering. Fits 2011-2014 Mazda 2, rear; 2001-2005 Kia Rio, rear; 1999-2005 Mazda Miata, rear; 1990-1997 Mazda Miata, rear; 1990-2003 Mazda Protege, rear; 1994-1997 Ford Aspire, rear; 1994-1997 Kia Sephia, rear; 1991-1996 Ford Escort, rear; 1992-1996 Mazda MX-3, rear; 1987-1996 Mercury Tracer, rear; 1986-1995 Mazda 323, rear; 1991-1994 Mercury Capri, rear; 1988-1993 Ford Festiva, rear.

Quality Assurance

InMotion manufactures this seal with precision-focused materials and dimensional control to support reliable differential sealing in service use.