InMotion WS41257 Wheel Seal - Front Inner

Wheel Seal for Differential Pinion Service

The InMotion WS41257 wheel seal is built for front inner applications on select Dodge vehicles with 9-inch brakes. It uses a leather sealing material and precise dimensions to help maintain a secure barrier at the differential pinion area, keeping contaminants out and fluid where it belongs.

For restorations and maintenance on classic Dodge Challenger and Dodge Dart models, this seal supports clean, reliable sealing performance in a critical driveline location. The WS41257 is sized for accurate housing and shaft engagement, helping preserve differential integrity in demanding street or off-road use.

Key Features

• Brand: InMotion
• Part number: WS41257
• Part type: Wheel Seal
• Material: Leather
• Inside diameter: 1.5 in.
• Outside diameter: 1.993 in.
• Width: 0.25 in.
• Shaft diameter: 1.5 in.
• Housing bore: 1.989 in.
• Compatible With Front Inner applications on select Dodge models with 9-inch brakes

Detailed Description

InMotion WS41257 is a precision wheel seal for driveline and axle sealing systems, engineered to create a tight seal at the differential pinion area. The leather construction and measured dimensions are intended to help block moisture, dirt, and road debris while reducing the risk of leaks that can shorten differential service life. This part is listed for 1970-1972 Dodge Challenger front inner with 9in brakes, 1963-1972 Dodge Dart front inner with 9in brakes, and 1961-1962 Dodge Lancer front inner. If you are sourcing a Dodge Challenger wheel seal or a Dodge Dart front inner seal, WS41257 provides a direct-fit reference for those applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Gear oil seepage at the differential pinion seal area
• Contamination from dust, moisture, and road debris
• Wear caused by an improperly sealed driveline assembly
• Service issues during differential maintenance or restoration
• Seal replacement on classic Dodge Challenger and Dodge Dart front inner applications

Installation Notes and Tips

Confirm shaft diameter, housing bore, and width before installation to match the existing seal pocket. Clean the sealing surface thoroughly and inspect the mating components for wear, scoring, or corrosion before pressing the new seal into place. Verify the vehicle uses the listed front inner configuration and 9-inch brakes where noted for Dodge Challenger and Dodge Dart applications.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and durable sealing material for driveline service. The WS41257 is specified for the listed classic Dodge applications and is intended to support reliable sealing performance in differential pinion service.