InMotion WS4072N Automatic Transmission Torque Converter Seal

Automatic Transmission Seal for GM Applications

The InMotion WS4072N is an automatic transmission seal built with polyacrylate material for dependable sealing performance. It is sized for precise housing and shaft dimensions and is used across a wide range of GM vehicles with 3T40, 4T40-E, 4T45-E, 4T60, 4T60-E, 4T65-E, THM125, THM125C, and THM440-T4 transmissions.

Use this seal when you need a direct-fit transmission sealing component for vehicles such as the Chevrolet Malibu, Pontiac Grand Am, and Saturn Vue. The WS4072N part number is also referenced in service searches for older Buick, Oldsmobile, and Cadillac automatic transmission applications.

Key Features

• Brand: InMotion
• Part number: WS4072N
• Material: Polyacrylate
• Inside diameter: 1.787 in.
• Outside diameter: 3.238 in.
• Thickness: 0.335 in.
• Shaft diameter: 1.787 in.
• Housing bore: 3.229 in.
• Designed for automatic transmission sealing applications

Detailed Product Overview

WS4072N is engineered to create a secure barrier that helps keep contaminants, debris, and moisture away from sensitive internal transmission components. Its polyacrylate construction supports consistent sealing performance in demanding driving conditions, from daily commuting to heavier-duty use. With broad fitment across GM platforms, this seal is a practical choice for transmission service on Chevrolet, Pontiac, Saturn, Buick, Oldsmobile, and Cadillac vehicles.

Fits 2006-2011 Chevrolet HHR, N/A; Fits 2005-2010 Chevrolet Cobalt, N/A; Fits 2006-2010 Chevrolet Impala, N/A; Fits 2004-2010 Chevrolet Malibu, N/A; Fits 2007-2010 Pontiac G5, N/A; Fits 2005-2010 Pontiac G6, N/A; Fits 2007-2010 Saturn Vue, N/A; Fits 2007-2009 Saturn Aura, N/A; Fits 2005-2007 Saturn Ion, N/A; Fits 2005-2006 Pontiac Pursuit, N/A.

Additional fitment includes Chevrolet Cavalier, Chevrolet Classic, Pontiac Grand Am, Saturn L-series models, Buick Century, Buick LeSabre, Buick Regal, Oldsmobile Alero, Oldsmobile Intrigue, Pontiac Bonneville, Pontiac Grand Prix, Cadillac DeVille, Cadillac Eldorado, and other GM vehicles listed in the fitment data. This part cross-references no listed interchange numbers in the provided data.

What It Helps Address

• Transmission fluid leakage at the seal area
• Contamination entering the transmission housing
• Wear-related sealing loss from age or heat exposure
• Service replacement during transmission repair or rebuild
• Fitment issues when replacing a worn OE-style seal

Installation Notes and Tips

Confirm transmission code and application details before installation, especially on vehicles with multiple GM transmission variants. Inspect the shaft and housing bore for wear, scoring, or contamination before installing the new seal. Clean the sealing surfaces thoroughly and verify the seal seats evenly to help maintain proper retention and sealing contact.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and durable polyacrylate material for transmission service applications. Verify part number WS4072N against the vehicle’s transmission type and service requirements before installation.