InMotion WS1990 Manual Transmission Input Shaft Seal - Outer

Manual Transmission Input Shaft Seal for Mazda and Ford

InMotion WS1990 is a manual transmission input shaft seal built with polyacrylate sealing material for a precise, leak-resistant fit. It is listed for a wide range of Mazda, Ford, Mercury, Kia, Chevrolet, GMC, Pontiac, and Isuzu manual transmission applications, including many Mazda G-series and M5R1-family transmissions.

Key Features

• Polyacrylate material for durable sealing performance
• Inside diameter: 1.063 in.
• Outside diameter: 1.703 in.
• Thickness and width: 0.354 in.
• Housing bore: 1.693 in.
• Fits outer and N/A positions depending on application
• Part number WS1990 for easy identification

Detailed Description

The InMotion WS1990 manual transmission input shaft seal is engineered to maintain a tight barrier at the transmission opening, helping keep contaminants out and fluid in. Its polyacrylate sealing material is selected for consistent contact at the shaft and housing dimensions listed, supporting reliable sealing in manual gearbox service. This seal is used across many applications, including Mazda 3, Mazda 5, Mazda 6, Ford Ranger, Ford Escape, and Ford Fusion models with the specified Mazda or Isuzu transmission codes.

This part cross-references no listed interchange part numbers in the provided data. For fitment verification, match the transmission code and position exactly before installation. WS1990 is a practical replacement choice when servicing manual transmission leaks on Mazda 3, Mazda 5, Mazda 6, and Ford Ranger applications.

What It Helps Solve

• Transmission fluid seepage at the input shaft area
• Contamination entering the manual transmission case
• Wear-related sealing loss around the shaft opening
• Moisture intrusion near the transmission seal surface
• Service issues caused by an incorrect seal size or profile

Installation Notes and Tips

Confirm the transmission family, position, and seal dimensions before installation. Clean the bore and shaft surface thoroughly, and inspect for scoring or wear that could affect sealing. Because fitment varies by transmission code, verify the application against the vehicle and gearbox combination listed for WS1990.

• Fits 2012-2015 Mazda 5, Outer, with Mazda G66M-R Transmission
• Fits 2012-2013 Mazda 3, Outer, with Mazda G35M-R Transmission
• Fits 2004-2010 Mazda 3, Outer, with Mazda G35M-R Transmission
• Fits 2005-2012 Ford Escape, Outer, with Mazda G5M-R Transmission
• Fits 2001-2009 Mazda B2300, N/A, with Mazda M5R1 Transmission
• Fits 1988-2000 Ford Ranger, N/A, with Mazda M5R1 Transmission

Quality Assurance

InMotion WS1990 is manufactured to the listed dimensions and material specification for manual transmission sealing service. The seal’s measured inside diameter, outside diameter, thickness, and housing bore are provided to support accurate parts matching for the specified applications.