InMotion WS710258 Engine Crankshaft Seal - Rear

Overview

InMotion WS710258 is a rear differential pinion seal built for applications that need a secure barrier against contaminants and fluid loss. It uses fluoro-elastomer construction for sealing performance in demanding driveline service, including Chevrolet and GMC trucks, vans, and SUVs.

Key Features

• Fluoro-elastomer material for durable sealing performance.
• Engineered to help keep debris and moisture out of the differential pinion area.
• Supports a tight seal to reduce the risk of leaks.
• Dimensioned for the specified shaft and housing bore measurements.
• Fits rear differential applications across multiple Chevrolet and GMC platforms.

Detailed Description

This InMotion differential pinion seal is designed around precise sealing dimensions, including a 4.528-inch inside diameter, 5.323-inch outside diameter, and 5.315-inch housing bore. The fluoro-elastomer construction is selected for sealing durability where the pinion area is exposed to heat, road debris, and moisture. Part number WS710258 is a direct-fit service part for rear axle applications on Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, GMC Savana 3500, Chevrolet C/K trucks, Suburban, Tahoe, Yukon, Blazer, P30/P3500, and Hummer H1 applications listed in the fitment data. WS710258 is also a practical replacement choice for Chevrolet and GMC rear differential service when leak prevention and contamination control are priorities.

What It Helps Fix

• Differential fluid seepage at the pinion seal area.
• Contamination entering the differential through a worn seal.
• Noise or wear concerns related to low lubricant level.
• Seal deterioration from age, heat, and road exposure.

Installation Notes

Install only on the rear differential applications listed in the fitment table. Verify shaft diameter and housing bore dimensions before installation, and inspect the pinion area for wear or damage that could affect sealing. Proper surface preparation and correct installation technique are important for reliable sealing performance.

Quality Assurance

InMotion specifies precision engineering and high-quality materials for this seal. Part number WS710258 is built for dependable sealing performance in rear differential service.