InMotion WS3698 Engine Crankshaft Seal - Rear

Overview

The InMotion WS3698 is a rear differential pinion seal built for a secure barrier against contaminants and fluid loss. It uses fluoro-elastomer construction and precise dimensions to support a tight seal in a wide range of rear axle applications.

Compatible With rear differential service on Jeep, Chevrolet, GMC, Dodge, Buick, Pontiac, Oldsmobile, Eagle, and American Motors applications, this seal is a direct-fit style replacement for vehicles that use the listed dimensions. The WS3698 part number is also useful when cross-checking service records or ordering the correct seal again.

Key Features

• Fluoro-elastomer material for resistance to heat and fluid exposure.
• Precision sizing with a 2.988-inch shaft diameter and 3.74-inch housing bore.
• Rear differential pinion seal design for controlling leaks at the pinion area.
• Fits a broad range of rear axle applications across multiple makes and models.
• WS3698 identification for accurate parts matching and repeat service.

Detailed Description

The InMotion WS3698 is engineered as a rear differential pinion seal for applications that require a reliable seal between the pinion shaft and housing. Its fluoro-elastomer construction supports durability in demanding driveline environments, while the listed inside diameter, outside diameter, and housing bore dimensions help confirm proper fitment before installation. This part is commonly searched as a rear differential pinion seal for Jeep Wrangler, Jeep Cherokee, and Chevrolet S10 service, and the WS3698 part number helps narrow the correct replacement when comparing options.

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

Common Uses

• Stopping gear oil seepage at the differential pinion area.
• Replacing a worn seal that allows contamination into the differential.
• Restoring sealing performance after driveline service.
• Addressing moisture intrusion around the pinion shaft.

Installation Notes

Confirm the shaft diameter and housing bore against the existing seal before installation. Clean the sealing surface thoroughly and inspect the pinion area for wear, scoring, or damage that could affect sealing performance. Verify rear application and vehicle-specific fitment for the exact model year before ordering.

Quality Assurance

InMotion uses precision manufacturing and high-quality materials to support consistent sealing performance in differential service.