InMotion WS710855 Engine Crankshaft Seal - Rear

Overview

InMotion WS710855 is a rear differential pinion seal built with PTFE for a precise sealing surface and dependable contamination control. It is used on a wide range of rear applications, including Buick Enclave, Chevrolet Traverse, and Cadillac CTS fitments.

Key Features

• PTFE sealing material for low-friction contact and consistent sealing performance.
• Engineered to help block moisture and debris from entering the differential pinion area.
• Designed to reduce fluid leakage at the pinion seal interface.
• Measured to match the specified shaft diameter, housing bore, and seal dimensions.
• Fits rear differential applications across multiple GM, Saab, Saturn, Suzuki, and Pontiac models.

Detailed Description

The InMotion WS710855 differential pinion seal is specified for rear applications and built around PTFE construction for accurate fit and sealing stability. Its dimensions include a 3.898 in inside diameter and shaft diameter, a 4.538 in outside diameter, and a 4.528 in housing bore, helping support proper seating in the differential housing. This part number, WS710855, is used across many rear fitments such as Buick LaCrosse, Chevrolet Impala, and GMC Acadia, making it a practical replacement when the original seal shows wear or leakage. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Is Used For

• Stopping gear oil seepage at the differential pinion seal.
• Replacing a worn or hardened seal surface.
• Helping keep contaminants out of the differential assembly.
• Addressing fluid loss that can lead to driveline noise or wear.

Installation Notes and Tips

Confirm rear differential fitment by year, make, and model before installation. Inspect the pinion shaft and housing bore for scoring, corrosion, or debris before seating the new seal. Proper installation technique is important to avoid damaging the PTFE sealing lip and to maintain a reliable seal.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and high-quality materials for consistent sealing performance in differential service.