InMotion WS370247A Wheel Seal - Rear or Rear Inner

Wheel Seal for Ford Super Duty and Transit

InMotion WS370247A is a nitrile wheel seal built to help keep differential pinion components protected from moisture, road debris, and other contaminants. With precise dimensions and a secure sealing profile, it supports leak control and long-term driveline reliability in demanding rear axle service.

Compatible With 1999-2022 Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Excursion, and Ford Transit rear inner applications, this seal is sized for direct replacement service where a dependable differential pinion seal is required.

• Nitrile seal material for durable sealing performance
• Inside diameter: 2.94 in. / 74.7 mm
• Outside diameter: 3.89 in. / 98.8 mm
• Width: 0.488 in. / 12.4 mm
• Shaft diameter: 2.955 in. / 75.1 mm
• Housing bore: 3.875 in. / 98.4 mm
• External marking: AX0341
• Spring material: JIS G3141
• Seal case material: JIS G3141

Detailed Product Information

WS370247A is engineered around the dimensions needed for rear axle sealing service on Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Excursion, and Ford Transit rear inner positions. The nitrile construction helps maintain a tight barrier at the differential pinion area, while the specified housing bore, shaft diameter, and seal width support accurate fitment during replacement. This part number, WS370247A, is a practical choice when servicing a leaking or worn pinion seal on compatible Ford driveline applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Seal Addresses

• Gear oil seepage at the differential pinion area
• Contamination entering the rear axle seal surface
• Wear-related sealing loss from age and mileage
• Moisture intrusion around the pinion opening
• Service issues caused by an incorrect seal size

Installation Notes and Tips

Verify housing bore, shaft diameter, and seal width before installation. Clean the sealing surface thoroughly, inspect the pinion area for wear or scoring, and install the seal squarely to avoid distortion. Confirm vehicle configuration carefully, especially on Ford F-250 Super Duty and Ford F-350 Super Duty rear applications with SRW or rear inner fitment notes. Use the exact part number WS370247A to match the required dimensions.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and materials selected for driveline sealing service. The design emphasizes a secure barrier against contaminants and reliable leak control in rear axle applications.

• Fits 2018-2022 Ford F-250 Super Duty, Rear, except Heavy Duty Towing Package
• Fits 2018-2022 Ford F-350 Super Duty, Rear, with Single Rear Wheels (SRW)
• Fits 2015-2019 Ford Transit-250, Rear Inner, with Single Rear Wheels (SRW)
• Fits 2015-2019 Ford Transit-350, Rear Inner, with Single Rear Wheels (SRW)
• Fits 2015-2019 Ford Transit-350 HD, Rear Inner, with Single Rear Wheels (SRW)
• Fits 2015-2018 Ford Transit-150, Rear Inner, with Single Rear Wheels (SRW)
• Fits 1999-2017 Ford F-250 Super Duty, Rear Inner
• Fits 1999-2017 Ford F-350 Super Duty, Rear Inner, with Single Rear Wheels (SRW)
• Fits 2000-2005 Ford Excursion, Rear Inner