InMotion WS4250 Wheel Seal - Front Inner or Rear Inner

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InMotion WS4250 Wheel Seal - Front Inner or Rear Inner

Brand	InMotion WS4250
Position	Rear Inner and Front Inner
External Markings	2.500 x 3.303 x 0.465
Inside Diameter	2.484
Inside Diameter	63.1
Sealing Surface Material	Nitrile
Spring Material	Sae 1008
Width	0.46500000000000002
Width	11.8
Outside Diameter	3.3079999999999998
Outside Diameter	84
Shaft Diameter	2.5
Shaft Diameter	63.5
Weight	54.13
Housing Bore	3.3029999999999999
Housing Bore	83.9
Seal Case Material	Sae 1070
Fits	Dodge, Ford, Mazda, and Plymouth · 237 vehicles

Precision-engineered seal. Creates a secure barrier against contaminants and helps prevent leaks.

Nitrile sealing surface. Delivers dependable sealing performance with durable material construction.

Durable case materials. Built with SAE 1070 case and SAE 1008 spring materials for reliable support.

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Wheel Seal for Differential Pinion Service

InMotion WS4250 is a precision wheel seal built to help keep contaminants out of the differential pinion area while maintaining a secure sealing surface. With nitrile sealing material and a durable steel case, it is built for front inner and rear inner applications across a wide range of Ford, Dodge, Mazda, and Plymouth vehicles.

Use this seal when you need a direct-fit replacement for service work on vehicles such as the Ford F-150, Ford Bronco, and Dodge Ram 3500 Van. The WS4250 is sized for a 2.500-inch shaft diameter and a 3.303-inch housing bore, with a 0.465-inch width for proper sealing geometry.

Key Features

Part number: WS4250
Nitrile sealing surface material for dependable fluid control
SAE 1008 spring material for consistent sealing tension
SAE 1070 seal case material for structural support
Inside diameter: 2.484 in / 63.1 mm
Outside diameter: 3.308 in / 84 mm
Housing bore: 3.303 in / 83.9 mm
Width: 0.465 in / 11.8 mm

Detailed Description

InMotion WS4250 is engineered to create a tight barrier at the differential pinion seal location, helping protect sensitive internal components from moisture, road debris, and contamination. Its measured dimensions and nitrile sealing lip are suited for applications that require accurate fitment and reliable sealing performance. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With applications include Fits 1999-2003 Dodge Ram 3500 Van, rear inner with Spicer 60 axle; Fits 1990-1997 Ford Ranger, front inner; Fits 1994-1997 Mazda B3000, front inner; Fits 1989-1994 Ford F-150, front inner; and Fits 1970-1986 Ford Bronco, front inner. The WS4250 also covers additional front inner and rear inner service positions across select Ford, Dodge, Mazda, and Plymouth driveline setups.

What It Helps Address

Gear oil seepage at the differential pinion seal area
Contamination entering the differential housing
Seal wear from age, heat, and road exposure
Loss of sealing tension around the pinion shaft
Service issues on front inner or rear inner axle applications

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation. Confirm axle configuration and position, since this part is listed for both front inner and rear inner applications depending on vehicle and axle type. Inspect the pinion surface for wear or scoring before installing the new seal, and ensure the sealing lip is seated evenly to maintain proper contact.

Quality Assurance

InMotion manufactures this seal with a nitrile sealing surface, SAE 1008 spring material, and SAE 1070 seal case material to support consistent fit and sealing integrity in driveline service.

This part fits 237 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Drive Type	Liters	Cylinders	Position	Notes
2003	Dodge	Ram 3500 Van	—	—	—	Rear Inner	with Spicer 60 Axle
2002	Dodge	Ram 3500 Van	—	—	—	Rear Inner	with Spicer 60 Axle
2001	Dodge	Ram 3500 Van	—	—	—	Rear Inner	with Spicer 60 Axle
2000	Dodge	Ram 3500 Van	—	—	—	Rear Inner	with Spicer 60 Axle
1999	Dodge	Ram 3500 Van	—	—	—	Rear Inner	with Spicer 60 Axle
1998	Dodge	B3500	—	—	—	Rear Inner	with Spicer 60 Axle
1997	Dodge	B3500	—	—	—	Rear Inner	with Spicer 60 Axle
1997	Ford	Ranger	4WD	—	—	Front Inner	—
1997	Mazda	B3000	4WD	—	—	Front Inner	—
1997	Mazda	B4000	4WD	—	—	Front Inner	—
1996	Dodge	B3500	—	—	—	Rear Inner	with Spicer 60 Axle
1996	Ford	Ranger	4WD	—	—	Front Inner	—
1996	Mazda	B2300	4WD	—	—	Front Inner	—
1996	Mazda	B3000	4WD	—	—	Front Inner	—
1996	Mazda	B4000	4WD	—	—	Front Inner	—
1995	Dodge	B3500	—	—	—	Rear Inner	with Spicer 60 Axle
1995	Ford	Bronco	—	—	—	Front Inner	To 5/1/1995
1995	Ford	F-150	4WD	—	—	Front Inner	To 04/30/1995
1995	Ford	Ranger	4WD	—	—	Front Inner	—
1995	Mazda	B2300	4WD	—	—	Front Inner	—
1995	Mazda	B3000	4WD	—	—	Front Inner	—
1995	Mazda	B4000	4WD	—	—	Front Inner	—
1994	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1994	Ford	Bronco	—	—	—	Front Inner	—
1994	Ford	Explorer	4WD	—	—	Front Inner	—
1994	Ford	F-150	4WD	—	—	Front Inner	—
1994	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1994	Ford	Ranger	4WD	—	—	Front Inner	—
1994	Mazda	B3000	4WD	—	—	Front Inner	—
1994	Mazda	B4000	4WD	—	—	Front Inner	—
1994	Mazda	Navajo	4WD	—	—	Front Inner	—
1993	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1993	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1993	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1993	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1993	Dodge	W150	—	—	—	Front Inner	—
1993	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1993	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1993	Ford	Bronco	—	—	—	Front Inner	—
1993	Ford	Explorer	4WD	—	—	Front Inner	—
1993	Ford	F-150	4WD	—	—	Front Inner	—
1993	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1993	Ford	Ranger	4WD	—	—	Front Inner	—
1993	Mazda	Navajo	4WD	—	—	Front Inner	—
1992	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1992	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1992	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1992	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1992	Dodge	W150	—	—	—	Front Inner	—
1992	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1992	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1992	Ford	Bronco	—	—	—	Front Inner	—
1992	Ford	Explorer	4WD	—	—	Front Inner	—
1992	Ford	F-150	4WD	—	—	Front Inner	—
1992	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1992	Ford	Ranger	4WD	—	—	Front Inner	—
1992	Mazda	Navajo	4WD	—	—	Front Inner	—
1991	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1991	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1991	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1991	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1991	Dodge	W150	—	—	—	Front Inner	—
1991	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1991	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1991	Ford	Bronco	—	—	—	Front Inner	—
1991	Ford	Explorer	4WD	—	—	Front Inner	—
1991	Ford	F-150	4WD	—	—	Front Inner	—
1991	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1991	Ford	Ranger	4WD	—	—	Front Inner	—
1991	Mazda	Navajo	4WD	—	—	Front Inner	—
1990	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1990	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1990	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1990	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1990	Dodge	W150	—	—	—	Front Inner	—
1990	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1990	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1990	Ford	Bronco	—	—	—	Front Inner	—
1990	Ford	Bronco II	4WD	—	—	Front Inner	with Spicer 35-IFS Axle
1990	Ford	F-150	4WD	—	—	Front Inner	—
1990	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1990	Ford	Ranger	4WD	—	—	Front Inner	—
1989	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1989	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1989	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1989	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1989	Dodge	W100	—	—	—	Front Inner	—
1989	Dodge	W150	—	—	—	Front Inner	—
1989	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1989	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1989	Ford	Bronco	—	—	—	Front Inner	—
1989	Ford	F-150	4WD	—	—	Front Inner	—
1989	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1988	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1988	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1988	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1988	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1988	Dodge	W100	—	—	—	Front Inner	—
1988	Dodge	W150	—	—	—	Front Inner	—
1988	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1988	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1988	Ford	Bronco	—	—	—	Front Inner	with Auto Lock Hubs
1988	Ford	F-150	4WD	—	—	Front Inner	From 05/01/1988
1988	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1987	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1987	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1987	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1987	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1987	Dodge	W100	—	—	—	Front Inner	—
1987	Dodge	W150	—	—	—	Front Inner	—
1987	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1987	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1987	Ford	Bronco	—	—	—	Front Inner	with Auto Lock Hubs
1987	Ford	F-150	4WD	—	—	Front Inner	with Auto Lock Hubs
1987	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1986	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1986	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1986	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1986	Dodge	Ramcharger	4WD	—	—	Front Inner	—
1986	Dodge	W100	—	—	—	Front Inner	—
1986	Dodge	W150	—	—	—	Front Inner	—
1986	Dodge	W250	—	—	—	Front Inner	with Spicer 44F-BJ Axle
1986	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1986	Ford	Bronco	—	—	—	Front Inner	—
1986	Ford	F-150	4WD	—	—	Front Inner	—
1986	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1985	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1985	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1985	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1985	Dodge	W250	—	—	—	Rear Inner	with Spicer 60 Axle
1985	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1985	Ford	Bronco	—	—	—	Front Inner	—
1985	Ford	F-150	4WD	—	—	Front Inner	—
1985	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1984	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1984	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1984	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1984	Dodge	W250	—	—	—	Rear Inner	with Spicer 60 Axle
1984	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1984	Ford	Bronco	—	—	—	Front Inner	—
1984	Ford	F-150	4WD	—	—	Front Inner	—
1984	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1983	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1983	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1983	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1983	Dodge	W250	—	—	—	Rear Inner	with Spicer 60 Axle
1983	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1983	Ford	Bronco	—	—	—	Front Inner	—
1983	Ford	F-150	4WD	—	—	Front Inner	—
1983	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1983	Plymouth	PB350	—	—	—	Rear Inner	with Spicer 60 Axle
1982	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1982	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1982	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1982	Dodge	W250	—	—	—	Rear Inner	with Spicer 60 Axle
1982	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1982	Ford	Bronco	—	—	—	Front Inner	—
1982	Ford	F-150	4WD	—	—	Front Inner	—
1982	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1982	Plymouth	PB350	—	—	—	Rear Inner	with Spicer 60 Axle
1981	Dodge	B350	—	—	—	Rear Inner	with Spicer 60 Axle
1981	Dodge	D250	—	—	—	Rear Inner	with Spicer 60 Axle
1981	Dodge	D350	—	—	—	Rear Inner	with Spicer 60 Axle
1981	Dodge	W250	—	—	—	Rear Inner	with Spicer 60 Axle
1981	Dodge	W350	—	—	—	Rear Inner	with Spicer 60 Axle
1981	Ford	Bronco	—	—	—	Front Inner	—
1981	Ford	F-150	4WD	—	—	Front Inner	—
1981	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS Axle
1981	Plymouth	PB350	—	—	—	Rear Inner	with Spicer 60 Axle
1980	Dodge	B300	—	—	—	Rear Inner	with Spicer 60 Axle
1980	Dodge	D200	—	—	—	Rear Inner	with Spicer 60 Axle
1980	Dodge	D300	—	—	—	Rear Inner	with Spicer 60 Axle
1980	Dodge	W200	—	—	—	Rear Inner	with Spicer 60 Axle
1980	Dodge	W300	—	—	—	Rear Inner	with Spicer 60 Axle
1980	Ford	Bronco	—	—	—	Front Inner	—
1980	Ford	F-150	4WD	—	—	Front Inner	—
1980	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-IFS-Heavy Duty Axle
1979	Dodge	B300	—	—	—	Rear Inner	with Spicer 60 Axle
1979	Dodge	D200	—	—	—	Rear Inner	with Spicer 60 Axle
1979	Dodge	D300	—	—	—	Rear Inner	with Spicer 60 Axle
1979	Dodge	W200	—	—	—	Rear Inner	with Spicer 60 Axle
1979	Dodge	W300	—	—	—	Rear Inner	with Spicer 60 Axle
1979	Ford	Bronco	—	—	—	Front Inner	—
1979	Ford	E-150 Econoline	—	—	—	Rear Inner	—
1979	Ford	E-250 Econoline Club Wagon	—	—	—	Rear Inner	—
1979	Ford	F-150	4WD	—	—	Front Inner	—
1979	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-9F Axle
1978	Dodge	B300	—	—	—	Rear Inner	with Spicer 60 Axle
1978	Dodge	D200	—	—	—	Rear Inner	with Spicer 60 Axle
1978	Dodge	D300	—	—	—	Rear Inner	with Spicer 60 Axle
1978	Dodge	W200	—	—	—	Rear Inner	with Spicer 60 Axle
1978	Dodge	W300	—	—	—	Rear Inner	with Spicer 60 Axle
1978	Ford	Bronco	—	—	—	Front Inner	—
1978	Ford	E-150 Econoline	—	—	—	Rear Inner	—
1978	Ford	E-250 Econoline Club Wagon	—	—	—	Rear Inner	—
1978	Ford	F-150	4WD	—	—	Front Inner	—
1978	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-9F Axle
1977	Dodge	B300	—	—	—	Rear Inner	with Spicer 60 Axle
1977	Dodge	D200	—	—	—	Rear Inner	with Spicer 60 Axle
1977	Dodge	D300	—	—	—	Rear Inner	with Spicer 60 Axle
1977	Dodge	W200	—	—	—	Rear Inner	with Spicer 60 Axle
1977	Dodge	W300	—	—	—	Rear Inner	with Spicer 60 Axle
1977	Ford	Bronco	—	—	—	Front Inner	—
1977	Ford	E-150 Econoline	—	—	—	Rear Inner	—
1977	Ford	E-250 Econoline Club Wagon	—	—	—	Rear Inner	—
1977	Ford	F-150	4WD	—	—	Front Inner	—
1977	Ford	F-250	4WD	—	—	Front Inner	with Spicer 44-9F Axle
1976	Ford	Bronco	—	—	—	Front Inner	—
1976	Ford	E-150 Econoline	—	—	—	Rear Inner	—
1976	Ford	E-250 Econoline Club Wagon	—	—	—	Rear Inner	—
1976	Ford	F-100	4WD	—	—	Front Inner	—
1976	Ford	F-150	4WD	—	—	Front Inner	—
1976	Ford	F-250	4WD	6.4L	V8	Front Inner	with SpiceR 44-6CF Axle
1975	Ford	Bronco	—	—	—	Front Inner	—
1975	Ford	E-150 Econoline	—	—	—	Rear Inner	—
1975	Ford	E-250 Econoline Club Wagon	—	—	—	Rear Inner	—
1975	Ford	F-100	4WD	—	—	Front Inner	—
1975	Ford	F-250	4WD	4.9L	L6	Front Inner	with Spicer 44-6EF Axle
1974	Ford	Bronco	—	—	—	Front Inner	—
1974	Ford	F-100	4WD	—	—	Front Inner	—
1974	Ford	F-250	4WD	4.9L	L6	Front Inner	with Spicer 44-6EF Axle
1973	Ford	Bronco	—	—	—	Front Inner	—
1973	Ford	F-100	4WD	—	—	Front Inner	—
1973	Ford	F-250	4WD	6.4L	V8	Front Inner	with SpiceR 44-6CF Axle
1972	Ford	Bronco	—	—	—	Front Inner	—
1972	Ford	F-250	—	—	—	Front Inner	with Spicer 44-6F Axle
1971	Ford	Bronco	—	—	—	Front Inner	—
1971	Ford	F-250	—	—	—	Front Inner	with Spicer 44-6F Axle
1970	Ford	Bronco	—	—	—	Front Inner	—
1970	Ford	F-250	—	—	—	Front Inner	with SpiceR 44-6CF Axle
1969	Ford	Bronco	—	—	—	Front Inner	3.307in Outside Diameter
1969	Ford	F-250	—	—	—	Front Inner	with Spicer 44-6F Axle
1968	Ford	F-250	—	—	—	Front Inner	with SpiceR 44-6CF Axle
1967	Ford	F-250	—	—	—	Front Inner	with SpiceR 44-6CF Axle
1966	Ford	F-250	—	—	—	Front Inner	with Spicer 44-6F Axle
1965	Ford	F-250	—	—	—	Front Inner	with Spicer 44-6F Axle
1964	Ford	F-250	—	—	—	Front Inner	with Spicer 44-6F Axle
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