InMotion WS4189H Automatic Transmission Torque Converter Seal

Automatic Transmission Seal for Ford Applications

The InMotion WS4189H is a fluoro-elastomer automatic transmission torque converter seal built for Ford transmissions that require a precise sealing surface. It helps maintain a tight barrier at the shaft and housing interface to keep fluid where it belongs and contaminants out of the transmission assembly.

Compatible with Ford Taurus, Windstar, Freestar, Sable, and Lincoln Continental applications listed below, this seal is sized for a controlled fit with a 1.996 inside diameter and shaft diameter, 3.12 outside diameter, and 3.111 housing bore.

• Fluoro-elastomer construction for transmission sealing durability
• Inside diameter: 1.996
• Outside diameter: 3.12
• Thickness: 0.344
• Shaft diameter: 1.996
• Housing bore: 3.111
• Part number: WS4189H

Detailed Product Overview

InMotion WS4189H is a transmission sealing component for Ford AXOD, AXOD-E, AX4N, AX4S, and 4F50N-equipped vehicles. Its fluoro-elastomer material is selected for sealing performance in transmission environments where heat, fluid exposure, and continuous movement place demands on the seal lip and outer diameter. This part number, WS4189H, is used in applications where a secure seal is needed to help preserve transmission fluid integrity and reduce contamination at the torque converter area.

This seal is listed for 1986-2007 Ford Taurus, 1981-2007 Mercury Sable, 1991-2002 Lincoln Continental, 1995-2007 Ford Windstar, and 2004-2007 Ford Freestar applications with the specified transmission codes. For buyers searching for a Ford Taurus transmission seal, Mercury Sable torque converter seal, or Lincoln Continental automatic transmission seal, WS4189H provides a direct-fit reference by transmission family.

What This Seal Helps Address

• Transmission fluid leakage at the torque converter seal area
• Contamination entering the transmission through a worn seal
• Seal wear from age, heat, and fluid exposure
• Loss of sealing integrity during transmission service or rebuild
• Fitment issues when replacing a damaged Ford transmission seal

Installation Notes and Tips

Verify the transmission code before installation, since fitment varies by AXOD, AXOD-E, AX4N, AX4S, and 4F50N applications. Inspect the shaft and housing bore for wear, scoring, or debris before installing WS4189H, and confirm the seal dimensions match the service opening. Clean the sealing surfaces thoroughly and install the seal evenly to avoid distortion.

Fits 2004-2007 Ford Freestar, with Ford 4F50N Transmission. Fits 2001-2007 Ford Taurus, with Ford 4F50N Transmission. Fits 2004-2005 Mercury Sable, with Ford 4F50N Transmission. Fits 2001-2002 Mercury Sable, with Ford 4F50N Transmission. Fits 2001-2003 Ford Windstar, with Ford 4F50N Transmission. Fits 2003 Mercury Sable, with Ford AX4S Transmission. Fits 1999 Mercury Sable, with Ford AX4S Transmission. Fits 1996-1997 Mercury Sable, with Ford AX4S Transmission. Fits 1991-2002 Lincoln Continental, with Ford AXOD-E Transmission. Fits 2000 Ford Taurus, with Ford AX4N Transmission. Fits 1996-1998 Ford Taurus, with Ford AX4N Transmission. Fits 1995-2000 Ford Windstar, with Ford AX4S Transmission. Fits 2000 Mercury Sable, with Ford AX4N Transmission. Fits 1998 Mercury Sable, with Ford AX4N Transmission. Fits 1999 Ford Taurus, with Ford AX4S Transmission. Fits 1991-1995 Ford Taurus, with Ford AXOD-E Transmission. Fits 1991-1995 Mercury Sable, with Ford AXOD-E Transmission. Fits 1986-1990 Ford Taurus, with Ford AXOD Transmission. Fits 1988-1990 Lincoln Continental, with Ford AXOD Transmission. Fits 1986-1990 Mercury Sable, with Ford AXOD Transmission.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and fluoro-elastomer material selection for transmission service applications. Part number WS4189H is specified for the listed Ford and Mercury platforms to support accurate replacement selection.