InMotion WS4934 Automatic Transmission Output Shaft Seal

Automatic Transmission Output Shaft Seal for GM Applications

InMotion WS4934 is an automatic transmission output shaft seal built with polyacrylate sealing material for a precise fit and dependable sealing performance. It is used across a wide range of GM trucks, SUVs, vans, and performance models with 4L60-E, 4L65-E, 4L70-E, and 4L85-E transmissions.

With an inside diameter of 1.503 in, an outside diameter of 2.379 in, and a width of 0.374 in, this seal is sized for accurate housing and shaft engagement. The InMotion WS4934 helps maintain a secure barrier at the output shaft area to keep contaminants out and fluid where it belongs.

Key Features

• Part number: WS4934
• Automatic transmission output shaft seal
• Polyacrylate sealing material for durable sealing performance
• Inside diameter: 1.503 in
• Outside diameter: 2.379 in
• Thickness/width: 0.374 in
• Fits a broad range of Chevrolet, GMC, Cadillac, Buick, Hummer, Isuzu, Oldsmobile, Pontiac, and Saab applications

Detailed Description

InMotion WS4934 is engineered for transmission sealing service where dimensional accuracy matters. The seal’s polyacrylate construction is selected for consistent contact at the shaft interface, while the listed dimensions support proper fitment in the housing bore and around the shaft diameter. This makes it a practical replacement for vehicles using GM 4L-series transmissions, including many Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe applications.

Fitment coverage includes long-tail searches such as Fits 1996-2014 Chevrolet Express 1500 with GMC 4L60-E Transmission, Fits 2004-2012 Chevrolet Colorado with GMC 4L60-E Transmission, and Fits 2007-2008 GMC Sierra 1500 with GMC 4L60-E Transmission. It also applies to models such as Chevrolet Trailblazer, GMC Envoy, Cadillac Escalade, and Pontiac GTO in the listed transmission configurations. This part number, WS4934, is also relevant for shoppers searching for a GM automatic transmission output shaft seal for 4L60-E and related 4L-series units.

This part cross-references ACDelco 24202535 for the same application.

What It Helps Address

• Transmission fluid seepage at the output shaft area
• Contamination entering the seal interface
• Wear-related sealing loss on high-mileage GM transmissions
• Service replacement during transmission repair or rebuild
• Fitment issues caused by incorrect seal dimensions

Installation Notes and Tips

Verify transmission code, shaft diameter, and housing bore before installation. Clean the sealing surface thoroughly and inspect the shaft for grooves or damage that could affect seal life. Use proper installation tools to seat the seal evenly and avoid distortion. Confirm the application against the vehicle’s transmission type, especially on models listed with Boot Type or specific 4L60-E, 4L65-E, 4L70-E, and 4L85-E notes.

Quality Assurance

InMotion manufactures this seal with precision-focused materials and dimensions to support reliable transmission service. The design is intended to provide a secure barrier against moisture and debris while maintaining a tight seal at the output shaft area.

• Compatible with 1991-2014 GM-family applications listed in the fitment data
• Built from polyacrylate sealing material
• Designed for direct replacement use in the specified transmission applications