InMotion WS493291 Wheel Seal - Front Inner

Brand InMotion WS493291
Position Front Inner
Material Nitrile
Inside Diameter 2.2829999999999999
Width 0.375
Outside Diameter 3.1589999999999998
Shaft Diameter 2.2829999999999999
Housing Bore 3.1549999999999998
Fits Dodge and Plymouth · 224 vehicles

Nitrile construction. Helps create a durable barrier against contaminants and moisture.

Precision sealing. Provides a tight, reliable seal that helps reduce leaks.

Made for differential pinion sealing in driveline applications.

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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.

This part fits 224 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeLitersCylindersPositionNotes
2003DodgeRam 2500 Van————Front Innerwith 4,000lb Axle(s)
2003DodgeRam 3500 Van————Front Inner—
2002DodgeRam 2500 Van————Front Innerwith 4,000lb Axle(s)
2002DodgeRam 3500 Van————Front Inner—
2001DodgeRam 2500 Van————Front Innerwith 4,000lb Axle(s)
2001DodgeRam 3500 Van————Front Inner—
2000DodgeRam 2500 Van————Front Innerwith 4,000lb Axle(s)
2000DodgeRam 3500 Van————Front Inner—
1999DodgeRam 2500 Van————Front Innerwith 4,000lb Axle(s)
1999DodgeRam 3500 Van————Front Inner—
1998DodgeB2500————Front Innerwith 4,000lb Axle(s)
1998DodgeB3500————Front Inner—
1997DodgeB3500————Front Innerwith 4,000lb Axle(s)
1996DodgeB3500————Front Innerwith 4,000lb Axle(s)
1995DodgeB3500————Front Innerwith 4,000lb Axle(s)
1994DodgeB350————Front Innerwith 4,000lb Axle(s)
1993DodgeB350————Front Innerwith 4,000lb Axle(s)
1993DodgeD250————Front Innerwith 4,000lb Axle(s)
1993DodgeD350————Front Innerwith 4,000lb Axle(s)
1992DodgeB350————Front Innerwith 4,000lb Axle(s)
1992DodgeD250————Front Innerwith 4,000lb Axle(s)
1992DodgeD350————Front Innerwith 4,000lb Axle(s)
1991DodgeB350————Front Innerwith 4,000lb Axle(s)
1991DodgeD250————Front Innerwith 4,000lb Axle(s)
1991DodgeD350————Front Innerwith 4,000lb Axle(s)
1990DodgeB350————Front Innerwith 4,000lb Axle(s)
1990DodgeD250————Front Innerwith 4,000lb Axle(s)
1990DodgeD350————Front Innerwith 4,000lb Axle(s)
1989DodgeB350————Front Innerwith 4,000lb Axle(s)
1989DodgeD250————Front Innerwith 4,000lb Axle(s)
1989DodgeD350————Front Innerwith 4,000lb Axle(s)
1988DodgeB350————Front Innerwith 4,000lb Axle(s)
1988DodgeD250————Front Innerwith 4,000lb Axle(s)
1988DodgeD350————Front Innerwith 4,000lb Axle(s)
1987DodgeB350————Front Innerwith 4,000lb Axle(s)
1987DodgeD250————Front Innerwith 4,000lb Axle(s)
1987DodgeD350————Front Innerwith 4,000lb Axle(s)
1986DodgeB350————Front Innerwith 4,000lb Axle(s)
1986DodgeD250————Front Innerwith 4,000lb Axle(s)
1986DodgeD350————Front Innerwith 4,000lb Axle(s)
1985DodgeB150————Front Innerwith 3,600lb Axle(s)
1985DodgeB350————Front Innerwith 4,000lb Axle(s)
1985DodgeD250————Front Innerwith 4,000lb Axle(s)
1985DodgeD350————Front Innerwith 4,000lb Axle(s)
1985DodgeRamcharger—RWD——Front Innerwith 3,600lb Axle(s)
1984DodgeB150————Front Innerwith 3,600lb Axle(s)
1984DodgeB350————Front Innerwith 4,000lb Axle(s)
1984DodgeD250————Front Innerwith 4,000lb Axle(s)
1984DodgeD350————Front Innerwith 4,000lb Axle(s)
1984DodgeRamcharger—RWD——Front Innerwith 3,600lb Axle(s)
1983DodgeB150————Front Innerwith 3,600lb Axle(s)
1983DodgeB250————Front Innerwith 3,600lb Axle(s)
1983DodgeB350————Front Innerwith 4,000lb Axle(s)
1983DodgeD250————Front Innerwith 4,000lb Axle(s)
1983DodgeD350————Front Innerwith 4,000lb Axle(s)
1983DodgeRamcharger—RWD——Front Innerwith 3,600lb Axle(s)
1983PlymouthPB150————Front Innerwith 3,600lb Axle(s)
1983PlymouthPB250————Front Innerwith 3,600lb Axle(s)
1983PlymouthPB350————Front Innerwith 4,000lb Axle(s)
1982DodgeB150————Front Innerwith 3,600lb Axle(s)
1982DodgeB250————Front Innerwith 3,600lb Axle(s)
1982DodgeB350————Front Innerwith 4,000lb Axle(s)
1982DodgeD250————Front Innerwith 4,000lb Axle(s)
1982DodgeD350————Front Innerwith 4,000lb Axle(s)
1982DodgeRamcharger—RWD——Front Innerwith 3,600lb Axle(s)
1982PlymouthPB150————Front Innerwith 3,600lb Axle(s)
1982PlymouthPB250————Front Innerwith 3,600lb Axle(s)
1982PlymouthPB350————Front Innerwith 4,000lb Axle(s)
1981DodgeB350————Front Innerwith 4,000lb Axle(s)
1981DodgeD250————Front Innerwith 4,000lb Axle(s)
1981DodgeD350————Front Innerwith 4,000lb Axle(s)
1981DodgeD400————Front Innerwith 4,500lb Axle(s)
1981DodgeD450————Front Innerwith 3,800lb Axle(s)
1981PlymouthPB350————Front Innerwith 4,000lb Axle(s)
1980DodgeB300————Front Innerwith 4,000lb Axle(s)
1980DodgeCB300————Front Innerwith 4,000lb Axle(s)
1980DodgeD200————Front Innerwith 4,000lb Axle(s)
1980DodgeD300————Front Innerwith 4,000lb Axle(s)
1980DodgeD400————Front Innerwith 4,500lb Axle(s)
1980DodgeD450————Front Innerwith 4,500lb Axle(s)
1980DodgeRD200————Front Innerwith 4,000lb Axle(s)
1980PlymouthPB300————Front Innerwith 4,000lb Axle(s)
1979DodgeB300————Front Innerwith 4,000lb Axle(s)
1979DodgeCB300————Front Innerwith 4,000lb Axle(s)
1979DodgeD200————Front Innerwith 4,000lb Axle(s)
1979DodgeD300————Front Innerwith 4,000lb Axle(s)
1979DodgeD400————Front Innerwith 4,500lb Axle(s)
1979DodgeD450————Front Innerwith 4,500lb Axle(s)
1979DodgeRD200————Front Innerwith 4,000lb Axle(s)
1979PlymouthPB300————Front Innerwith 4,000lb Axle(s)
1978DodgeB300————Front Innerwith 4,500lb Axle(s)
1978DodgeCB300————Front Innerwith 4,000lb Axle(s)
1978DodgeD200————Front Innerwith 4,000lb Axle(s)
1978DodgeD300————Front Innerwith 4,000lb Axle(s)
1978DodgeD400————Front Innerwith 4,500lb Axle(s)
1978DodgeD450————Front Innerwith 4,500lb Axle(s)
1978DodgeRD200————Front Innerwith 4,000lb Axle(s)
1978PlymouthPB300————Front Innerwith 4,500lb Axle(s)
1977DodgeB300————Front Innerwith 4,500lb Axle(s)
1977DodgeCB300————Front Innerwith 3,800lb Axle(s)
1977DodgeD200————Front Innerwith 3,800lb Axle(s)
1977DodgeD300————Front Innerwith 3,800lb Axle(s)
1977PlymouthPB300————Front Innerwith 3,800lb Axle(s)
1976DodgeB300————Front Innerwith 4,500lb Axle(s)
1976DodgeCB300————Front Innerwith 4,500lb Axle(s)
1976DodgeD200————Front Innerwith 3,800lb Axle(s)
1976DodgeD300————Front Innerwith 3,800lb Axle(s)
1976PlymouthPB300————Front Innerwith 3,800lb Axle(s)
1975DodgeB300————Front Innerwith 3,800lb Axle(s)
1975DodgeCB300————Front Innerwith 4,500lb Axle(s)
1975DodgeD200————Front Innerwith 3,800lb Axle(s)
1975DodgeD300————Front Innerwith 4,500lb Axle(s)
1975PlymouthPB300————Front Innerwith 3,800lb Axle(s)
1974DodgeB300 Van————Front Innerwith 3,800lb Axle(s)
1974DodgeCB300————Front Innerwith 3,800lb Axle(s)
1974DodgeD200 Pickup————Front Innerwith 3,800lb Axle(s)
1974DodgeD300 Pickup————Front Innerwith 3,800lb Axle(s)
1974DodgeM300————Front Innerwith 4,500lb Axle(s)
1974DodgeM350————Front Innerwith 4,500lb Axle(s)
1974DodgeMB300————Front Innerwith 4,500lb Axle(s)
1974DodgeP300 Van————Front Innerwith 3,800lb Axle(s)
1974DodgeR300————Front Innerwith 4,500lb Axle(s)
1974DodgeRM300————Front Innerwith 4,500lb Axle(s)
1974PlymouthPB300 Van————Front Innerwith 4,500lb Axle(s)
1973DodgeB300 Van————Front Innerwith 3,800lb Axle(s)
1973DodgeCB300————Front Innerwith 3,800lb Axle(s)
1973DodgeD200 Pickup————Front Innerwith 3,800lb Axle(s)
1973DodgeD300 Pickup————Front Innerwith 4,500lb Axle(s)
1973DodgeM300————Front Innerwith 4,500lb Axle(s)
1973DodgeMB300————Front Innerwith 3,800lb Axle(s)
1973DodgeP300 Van————Front Innerwith 4,500lb Axle(s)
1973DodgeR300————Front Innerwith 4,500lb Axle(s)
1973DodgeRM300————Front Innerwith 3,800lb Axle(s)
1972DodgeD200 Pickup————Front Innerwith 12in x 3in Brakes
1972DodgeD300 Pickup————Front Innerwith 3,800lb Axle(s)
1972DodgeM300————Front Innerwith 4,500lb Axle(s)
1972DodgeP300 Van————Front Innerwith 3,800lb Axle(s)
1972DodgeR300————Front Innerwith 4,500lb Axle(s)
1972FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1972FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1971DodgeD200 Pickup————Front Innerwith 12in x 3in Brakes
1971DodgeD300 Pickup————Front Innerwith 4,500lb Axle(s)
1971DodgeM300————Front Innerwith 4,500lb Axle(s)
1971DodgeP300 Van————Front Innerwith 4,500lb Axle(s)
1971DodgeRM300————Front Innerwith 3,800lb Axle(s)
1971FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1971FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1971FargoP300 Parcel Delivery————Front Innerwith 4,500lb Axle(s)
1970DodgeD200 Pickup————Front Innerwith 12in x 3in Brakes
1970DodgeD300 Pickup————Front Innerwith 4,500lb Axle(s)
1970DodgeM300————Front Innerwith 4,500lb Axle(s)
1970DodgeP300 Van————Front Innerwith 4,500lb Axle(s)
1970FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1970FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1970FargoP300 Parcel Delivery————Front Innerwith 4,500lb Axle(s)
1969DodgeD200 Pickup————Front Innerwith 12in x 3in Brakes
1969DodgeD300 Pickup————Front Innerwith 3,800lb Axle(s)
1969DodgeM300————Front Innerwith 4,500lb Axle(s)
1969DodgeP300 Van————Front Innerwith 4,500lb Axle(s)
1969FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1969FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1969FargoP300 Parcel Delivery————Front Innerwith 4,500lb Axle(s)
1968DodgeD200 Pickup————Front Innerwith 12in x 3in Brakes
1968DodgeD300 Pickup————Front Inner—
1968DodgeM300————Front Innerwith 4,500lb Axle(s)
1968DodgeP300 Van————Front Inner—
1968DodgeP375————Front Innerwith 4,000lb Axle(s)
1968FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1968FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1968FargoP300 Parcel Delivery————Front Inner—
1967DodgeD200 Series————Front Innerwith 12in x 3in Brakes
1967DodgeD300 Series————Front Inner—
1967DodgeP300 Van————Front Inner—
1967FargoD200 Panel Delivery————Front Innerwith 12in x 3in Brakes
1967FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1967FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1967FargoP300 Parcel Delivery————Front Inner—
1966DodgeD200 Series————Front Innerwith 12in x 3in Brakes
1966DodgeD300 Series————Front Inner—
1966DodgeP300 Van————Front Inner—
1966FargoD200 Panel Delivery————Front Innerwith 12in x 3in Brakes
1966FargoD200 Pickup————Front Innerwith 12in x 3in Brakes
1966FargoD210 Pickup————Front Innerwith 12in x 3in Brakes
1966FargoP300 Parcel Delivery————Front Inner—
1965DodgeD200 Series————Front Innerwith 12in x 3in Brakes
1965DodgeD300 Series————Front Inner—
1965FargoP300 Parcel Delivery————Front Inner—
1964DodgeD200 Series————Front Innerwith 12in x 3in Brakes
1964DodgeD300 Series————Front Inner—
1964DodgeP300 Van————Front Inner—
1964FargoP300 Parcel Delivery————Front Inner—
1963DodgeD300 Series————Front Inner—
1963DodgeP300 Van————Front Inner—
1963FargoP300 Parcel Delivery————Front Inner—
1962DodgeD300 Series————Front Inner—
1962DodgeP300 Van————Front Inner—
1962FargoP300 Parcel Delivery————Front Inner—
1961DodgeD300 Series————Front Inner—
1961DodgeP300 Van————Front Inner—
1961FargoP300 Parcel Delivery————Front Inner—
1960DodgeD300 Series————Front InnerCanadian Built
1960DodgeP300 Van————Front Innerwith Heavy Duty Brakes
1960FargoP300 Parcel Delivery————Front Inner—
1959DodgeD100 Pickup——5.1LV8Front Innerwith Heavy Duty Axle
1959DodgeD300 Pickup————Front Innerwith Heavy Duty Brakes
1959DodgeP300 Series————Front InnerCanadian Built
1959DodgeP310 Series————Front InnerCanadian Built
1959DodgeP320 Series————Front Innerwith Heavy Duty Brakes
1959DodgeP410 Series————Front Innerwith 4,000lb Axle(s)
1959DodgeP420 Series————Front Innerwith 4,000lb Axle(s)
1959DodgeP450 Series————Front Innerwith 4,000lb Axle(s)
1959FargoP300 Parcel Delivery————Front InnerCanadian Built
1958DodgeD100 Pickup——3.8LL6Front Innerwith Heavy Duty Axle
1958DodgeD300 Pickup————Front Innerwith Heavy Duty Brakes
1958DodgeP300 Series————Front Innerwith Heavy Duty Brakes
1958DodgeP310 Series————Front Innerwith Heavy Duty Brakes
1958DodgeP320 Series————Front Innerwith Heavy Duty Brakes
1958DodgeP410 Series————Front Innerwith 4,000lb Axle(s)
1958DodgeP420 Series————Front Innerwith 4,000lb Axle(s)
1957DodgeD100 Pickup——3.8LL6Front Innerwith Heavy Duty Axle
1957DodgeD300 Pickup————Front Innerwith Heavy Duty Brakes
1957DodgeP300 Series————Front Innerwith Heavy Duty Brakes
1952DodgeB-3 VanEUL———Front Inner—
1951DodgeB-3 VanEULF———Front Inner—