InMotion WS493291 Wheel Seal - Front Inner

Front Inner Differential Pinion Seal for Dodge and Plymouth

The InMotion WS493291 is a front inner wheel seal built for select Dodge and Plymouth trucks and vans with Dana-style axle applications. It uses nitrile material and precise dimensions to help maintain a secure seal at the differential pinion area, where contamination and fluid loss can affect driveline performance.

• Nitrile construction for sealing performance in driveline applications
• Inside diameter: 2.283 in.; outside diameter: 3.159 in.; width: 0.375 in.
• Shaft diameter: 2.283 in.; housing bore: 3.155 in.
• Front inner position for select Dodge Ram 2500 Van, Ram 3500 Van, B2500, B3500, B350, D250, D350, B150, Ramcharger, B250, PB150, PB250, PB350, B300, D200, and D300 applications
• Built for vehicles with 3,600 lb, 3,800 lb, 4,000 lb, or 4,500 lb axle configurations as listed

Fitment and Application Details

Compatible With front inner axle positions on select 1975-2003 Dodge and Plymouth vehicles, including Dodge Ram 2500 Van, Dodge Ram 3500 Van, Dodge B2500, Dodge B3500, Dodge B350, Dodge D250, Dodge D350, Dodge B150, Dodge Ramcharger, Dodge B250, Dodge B300, Dodge D200, Dodge D300, Plymouth PB150, Plymouth PB250, and Plymouth PB350. This part number, WS493291, is used where the listed axle and housing dimensions match the original seal specification.

For shoppers searching for a front inner wheel seal for Dodge Ram 2500 Van or a differential pinion seal for Dodge D350 and Plymouth PB350 applications, WS493291 provides the specified nitrile sealing profile and dimensional fit. The part number WS493291 is also a useful reference when verifying replacement needs against the original seal size.

What This Seal Helps Address

• Differential fluid seepage at the pinion seal area
• Contamination from dirt, road debris, and moisture entering the housing
• Wear related to an aging or hardened seal surface
• Seal mismatch during differential service or axle rebuilds
• Loss of sealing integrity after high-mileage use or off-road exposure

Installation Notes and Tips

Confirm the axle rating, front inner position, and seal dimensions before installation. Clean the housing bore and shaft surface thoroughly, and inspect for scoring or wear that could affect sealing. Proper seating depth and alignment are important for a reliable install on Dodge and Plymouth driveline service work.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and high-quality materials for driveline sealing applications. The nitrile sealing material is selected for dependable performance in the differential environment.