InMotion WS710494 Drive Axle Shaft Seal - Front Outer

Drive Axle Shaft Seal for Ford Super Duty and Excursion

The InMotion WS710494 drive axle shaft seal is built for front outer differential service on select Ford heavy-duty applications. It uses polyacrylate construction and precise dimensions to help maintain a secure seal at the axle interface, keeping contaminants out and fluid where it belongs.

Compatible With 2003-2004 Ford F-250 Super Duty, front outer, with Spicer 50 Axle; 2003-2004 Ford F-350 Super Duty, front outer, with Spicer 50 Axle; and 2003-2004 Ford Excursion, front outer, including OE design applications. The WS710494 is sized with a 2.874 in inside diameter, 4.47 in outside diameter, 1.163 in thickness, and a 4.448 in housing bore for a precise fit.

Key Features

• Polyacrylate seal material for durable sealing performance
• Inside diameter: 2.874 in; shaft diameter: 2.874 in
• Outside diameter: 4.47 in; housing bore: 4.448 in
• Thickness and width: 1.163 in
• Front outer axle seal application for select Ford trucks and SUV
• Part number WS710494 for accurate ordering and service matching

Detailed Description

InMotion WS710494 is a drive axle shaft seal engineered for the differential pinion area on compatible Ford front outer axle applications. Its measured dimensions and polyacrylate construction support a tight interface between the shaft and housing, helping reduce leakage and limiting the entry of dirt, water, and road debris. This seal is a direct-service choice for 2003-2004 Ford F-250 Super Duty, 2003-2004 Ford F-350 Super Duty, and 2003-2004 Ford Excursion models equipped with the specified axle configuration. If you are servicing a Ford Excursion or Ford Super Duty front axle and need a seal matched to the application, WS710494 provides the dimensional coverage needed for a proper repair.

Common Issues This Seal Can Address

• Gear oil seepage at the front outer axle seal
• Contamination entering the differential pinion area
• Seal wear from age, heat, and road exposure
• Fluid loss that can affect differential lubrication
• Service replacement during axle or differential maintenance

Installation Notes and Tips

Verify axle configuration before installation, including the Spicer 50 Axle requirement where noted. Inspect the shaft surface and housing bore for wear, scoring, or corrosion before pressing in the new seal. Clean the sealing surfaces thoroughly and confirm the seal seats evenly to help prevent leaks after service. Always match the part number WS710494 to the vehicle application and axle position listed above.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and high-quality materials to support reliable differential sealing in demanding service conditions. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.