InMotion WS100470 Engine Crankshaft Seal - Front

Engine Crankshaft Seal for Front Differential Applications

The InMotion WS100470 is a PTFE engine crankshaft seal built for front-position applications across a wide range of Chevrolet, GMC, Cadillac, and related vehicles. It is engineered to create a secure sealing surface that helps keep contaminants out and fluid in, supporting reliable operation in demanding driving conditions.

With precise dimensions and a PTFE sealing material, this seal is suited for service work where accurate fit and consistent sealing performance matter. It is a practical choice for front differential pinion seal replacement on vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Corvette.

Key Features

• PTFE sealing material for low-friction, durable sealing performance
• Inside diameter: 2.129 in.
• Outside diameter: 2.846 in.
• Housing bore: 2.835 in.
• Shaft diameter: 2.129 in.
• Thickness and width: 0.323 in.
• Front-position fitment for a broad range of GM applications
• Part number WS100470 for easy identification

Detailed Description

InMotion WS100470 is built for front differential sealing applications where a precise barrier is needed to help protect internal components from debris and moisture. The PTFE construction supports consistent contact at the sealing surface, while the listed dimensions help confirm proper fit during service. This part is used on many GM trucks, SUVs, performance cars, and vans, including Chevrolet Silverado 2500 HD, GMC Yukon, Cadillac Escalade, and Chevrolet Camaro models. If you are replacing a front differential pinion seal on a Chevrolet Silverado 1500 or GMC Sierra 2500 HD, WS100470 provides a direct-fit service solution for the listed applications.

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

What This Part Helps Address

• Fluid seepage at the front differential pinion area
• Contamination entering the differential housing
• Wear caused by degraded or hardened seal material
• Loss of sealing integrity during routine drivetrain service
• Fitment issues when replacing an incorrect or worn seal

Installation Notes and Tips

Confirm the housing bore, shaft diameter, and outside diameter before installation to verify the seal matches the application. Clean the sealing surface thoroughly and inspect the pinion area for wear, scoring, or contamination before fitting the new seal. Proper alignment during installation helps maintain a uniform seal and reduces the chance of premature leakage. Use the vehicle-specific service procedure for the front differential assembly.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and high-quality PTFE material to support dependable sealing performance in the listed applications. Fitment coverage includes 1997-2019 vehicles across Chevrolet, GMC, Cadillac, Buick, Pontiac, Saab, Hummer, Isuzu, and related platforms, with front-position applications only.

Compatible with select front applications on Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Corvette, and Cadillac Escalade models. Part number WS100470 is the reference for ordering and service matching.