InMotion WS4148 Wheel Seal - Front Inner
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InMotion

InMotion WS4148 Wheel Seal - Front Inner

Brand InMotion WS4148
Position Front Inner
Material Nitrile
External Markings 2.00 x 2.623 x 0.26
Inside Diameter 1.95
Inside Diameter 49.6
Spring Material Sae 1008
Width 0.28000000000000003
Width 6.6
Outside Diameter 2.63
Outside Diameter 66.7
Shaft Diameter 2
Shaft Diameter 50.8
Weight 26.2
Housing Bore 2.6230000000000002
Housing Bore 66.599999999999994
Fits Ford and Lincoln · 165 vehicles

Precision-engineered seal. Creates a secure barrier against contaminants and moisture.

Nitrile construction. Helps resist leaks and protect sensitive internal components.

Reliable differential seal. Crafted to support long-lasting sealing performance.

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Front Inner Differential Pinion Seal for Ford and Lincoln

InMotion WS4148 is a front inner differential pinion seal built with nitrile material for a secure sealing surface around the pinion area. It helps keep contaminants out and fluid in, supporting reliable differential operation in demanding driving conditions.

Key Features

  • Nitrile seal material for durable sealing performance
  • Measures 1.95 in. inside diameter, 2.63 in. outside diameter, and 0.280 in. width
  • Housing bore: 2.623 in. / 66.6 mm
  • Shaft diameter: 2.00 in. / 50.8 mm
  • Spring material: SAE 1008
  • External markings: 2.00 x 2.623 x 0.26
  • Part number: WS4148

Detailed Description

Built for front inner applications, InMotion WS4148 is a differential pinion seal that helps maintain a tight barrier at the pinion interface. Its nitrile construction is selected for sealing consistency, while the spring material supports stable contact at the sealing lip. This part is a direct-fit style service component for a wide range of Ford and Lincoln trucks, vans, and SUVs, including Ford F-150, Ford E-150, Ford Expedition, Lincoln Navigator, and Lincoln Blackwood applications listed below. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

  • Differential fluid seepage at the pinion seal area
  • Contamination entering the differential through a worn seal
  • Noise or wear concerns related to low lubricant level
  • Seal deterioration from age, heat, and road exposure
  • Service needs on front inner differential pinion locations

Installation Notes and Fitment

Install only after confirming housing bore, shaft diameter, and seal dimensions match the original part. Clean the sealing surface and inspect the pinion area for wear before installation. Compatible with these applications:

  • Fits 2004 Ford E-150, Front Inner, to 08/02/2004
  • Fits 2004 Ford E-150 Club Wagon, Front Inner, to 08/02/2004
  • Fits 1975-2004 Ford F-150, Front Inner
  • Fits 2004 Ford F-150 Heritage, Front Inner
  • Fits 2003 Ford E-150, Front Inner
  • Fits 2003 Ford E-150 Club Wagon, Front Inner
  • Fits 1975-2002 Ford E-150 Econoline, Front Inner
  • Fits 1975-2002 Ford E-150 Econoline Club Wagon, Front Inner
  • Fits 1997-2002 Ford Expedition, Front Inner
  • Fits 2002 Lincoln Blackwood, Front Inner
  • Fits 1998-2002 Lincoln Navigator, Front Inner
  • Fits 1997-1999 Ford F-250, Front Inner, with Light Duty Suspension
  • Fits 1965-1985 Ford F-250, Front Inner, with Light Duty Brakes
  • Fits 1969-1983 Ford E-100 Econoline, Front Inner
  • Fits 1975-1983 Ford E-100 Econoline Club Wagon, Front Inner
  • Fits 1970-1983 Ford F-100, Front Inner

Quality Assurance

InMotion manufactures this seal from nitrile with SAE 1008 spring material and published dimensional specifications for accurate service selection. Verify fitment against the original seal dimensions and vehicle configuration before installation. Part number WS4148 is listed for front inner differential pinion seal applications across the covered Ford and Lincoln platforms.

This part fits 165 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2004FordE-150—Front InnerTo 08/02/2004
2004FordE-150 Club Wagon—Front InnerTo 08/02/2004
2004FordF-150RWDFront Inner—
2004FordF-150 HeritageRWDFront Inner—
2003FordE-150—Front Inner—
2003FordE-150 Club Wagon—Front Inner—
2003FordF-150RWDFront Inner—
2002FordE-150 Econoline—Front Inner—
2002FordE-150 Econoline Club Wagon—Front Inner—
2002FordExpeditionRWDFront Inner—
2002FordF-150RWDFront Inner—
2002LincolnBlackwood—Front Inner—
2002LincolnNavigatorRWDFront Inner—
2001FordE-150 Econoline—Front Inner—
2001FordE-150 Econoline Club Wagon—Front Inner—
2001FordExpeditionRWDFront Inner—
2001FordF-150RWDFront Inner—
2001LincolnNavigatorRWDFront Inner—
2000FordE-150 Econoline—Front Inner—
2000FordE-150 Econoline Club Wagon—Front Inner—
2000FordExpeditionRWDFront Inner—
2000FordF-150RWDFront Inner—
2000LincolnNavigatorRWDFront Inner—
1999FordE-150 Econoline—Front Inner—
1999FordE-150 Econoline Club Wagon—Front Inner—
1999FordExpeditionRWDFront Inner—
1999FordF-150RWDFront Inner—
1999FordF-250RWDFront Innerwith Light Duty Suspension
1999LincolnNavigatorRWDFront Inner—
1998FordE-150 Econoline—Front Inner—
1998FordE-150 Econoline Club Wagon—Front Inner—
1998FordExpeditionRWDFront Inner—
1998FordF-150RWDFront Inner—
1998FordF-250RWDFront Innerwith Light Duty Suspension
1998LincolnNavigatorRWDFront Inner—
1997FordE-150 Econoline—Front Inner—
1997FordE-150 Econoline Club Wagon—Front Inner—
1997FordExpeditionRWDFront Inner—
1997FordF-150RWDFront Inner—
1997FordF-250RWDFront Innerwith Light Duty Suspension
1996FordE-150 Econoline—Front Inner—
1996FordE-150 Econoline Club Wagon—Front Inner—
1996FordF-150RWDFront Inner—
1995FordE-150 Econoline—Front Inner—
1995FordE-150 Econoline Club Wagon—Front Inner—
1995FordF-150RWDFront Inner—
1994FordE-150 Econoline—Front Inner—
1994FordE-150 Econoline Club Wagon—Front Inner—
1994FordF-150RWDFront Inner—
1993FordE-150 Econoline—Front Inner—
1993FordE-150 Econoline Club Wagon—Front Inner—
1993FordF-150RWDFront Inner—
1992FordE-150 Econoline—Front Inner—
1992FordE-150 Econoline Club Wagon—Front Inner—
1992FordF-150RWDFront Inner—
1991FordE-150 Econoline—Front Inner—
1991FordE-150 Econoline Club Wagon—Front Inner—
1991FordF-150RWDFront Inner—
1990FordE-150 Econoline—Front Inner—
1990FordE-150 Econoline Club Wagon—Front Inner—
1990FordF-150RWDFront Inner—
1989FordE-150 Econoline—Front Inner—
1989FordE-150 Econoline Club Wagon—Front Inner—
1989FordF-150RWDFront Inner—
1988FordE-150 Econoline—Front Inner—
1988FordE-150 Econoline Club Wagon—Front Inner—
1988FordF-150RWDFront Inner—
1987FordE-150 Econoline—Front Inner—
1987FordE-150 Econoline Club Wagon—Front Inner—
1987FordF-150RWDFront Inner—
1986FordE-150 Econoline—Front Inner—
1986FordE-150 Econoline Club Wagon—Front Inner—
1986FordF-150RWDFront Inner—
1985FordE-150 Econoline—Front Inner—
1985FordE-150 Econoline Club Wagon—Front Inner—
1985FordF-150RWDFront Inner—
1985FordF-250RWDFront Innerwith Light Duty Brakes
1984FordE-150 Econoline—Front Inner—
1984FordE-150 Econoline Club Wagon—Front Inner—
1984FordF-150RWDFront Inner—
1984FordF-250RWDFront Innerwith Light Duty Brakes
1983FordE-100 Econoline—Front Inner—
1983FordE-100 Econoline Club Wagon—Front Inner—
1983FordE-150 Econoline—Front Inner—
1983FordE-150 Econoline Club Wagon—Front Inner—
1983FordF-100—Front Inner—
1983FordF-150RWDFront Inner—
1983FordF-250RWDFront Innerwith Light Duty Brakes
1982FordE-100 Econoline—Front Inner—
1982FordE-100 Econoline Club Wagon—Front Inner—
1982FordE-150 Econoline—Front Inner—
1982FordE-150 Econoline Club Wagon—Front Inner—
1982FordF-100—Front Inner—
1982FordF-150RWDFront Inner—
1982FordF-250RWDFront Innerwith Light Duty Brakes
1981FordE-100 Econoline—Front Inner—
1981FordE-100 Econoline Club Wagon—Front Inner—
1981FordE-150 Econoline—Front Inner—
1981FordE-150 Econoline Club Wagon—Front Inner—
1981FordF-100—Front Inner—
1981FordF-150RWDFront Inner—
1981FordF-250RWDFront Innerwith Light Duty Brakes
1980FordE-100 Econoline—Front Inner—
1980FordE-100 Econoline Club Wagon—Front Inner—
1980FordE-150 Econoline—Front Inner—
1980FordE-150 Econoline Club Wagon—Front Inner—
1980FordF-100—Front Inner—
1980FordF-150RWDFront Inner—
1980FordF-250RWDFront Innerwith Light Duty Brakes
1979FordE-100 Econoline—Front Inner—
1979FordE-100 Econoline Club Wagon—Front Inner—
1979FordE-150 Econoline—Front Inner—
1979FordE-150 Econoline Club Wagon—Front Inner—
1979FordF-100—Front Inner—
1979FordF-150RWDFront Inner—
1979FordF-250RWDFront Innerwith Light Duty Brakes
1978FordE-100 Econoline—Front Inner—
1978FordE-100 Econoline Club Wagon—Front Inner—
1978FordE-150 Econoline—Front Inner—
1978FordE-150 Econoline Club Wagon—Front Inner—
1978FordF-100—Front Inner—
1978FordF-150RWDFront Inner—
1978FordF-250RWDFront Innerwith Light Duty Brakes
1977FordE-100 Econoline—Front Inner—
1977FordE-100 Econoline Club Wagon—Front Inner—
1977FordE-150 Econoline—Front Inner—
1977FordE-150 Econoline Club Wagon—Front Inner—
1977FordF-100—Front Inner—
1977FordF-150RWDFront Inner—
1977FordF-250RWDFront Innerwith Light Duty Brakes
1976FordE-100 Econoline—Front Inner—
1976FordE-100 Econoline Club Wagon—Front Inner—
1976FordE-150 Econoline—Front Inner—
1976FordE-150 Econoline Club Wagon—Front Inner—
1976FordF-100RWDFront Inner—
1976FordF-150RWDFront Inner—
1976FordF-250RWDFront Innerwith Light Duty Brakes
1975FordE-100 Econoline—Front Inner—
1975FordE-100 Econoline Club Wagon—Front Inner—
1975FordE-150 Econoline—Front Inner—
1975FordE-150 Econoline Club Wagon—Front Inner—
1975FordF-100RWDFront Inner—
1975FordF-150RWDFront Inner—
1975FordF-250RWDFront Innerwith Light Duty Brakes
1974FordE-100 Econoline—Front Inner—
1974FordF-100RWDFront Inner—
1974FordF-250RWDFront Innerwith Light Duty Brakes
1973FordE-100 Econoline—Front Inner—
1973FordF-100RWDFront Inner—
1973FordF-250RWDFront Innerwith Light Duty Brakes
1972FordE-100 Econoline—Front Inner—
1972FordF-100RWDFront Inner—
1972FordF-250—Front Innerwith Light Duty Brakes
1971FordE-100 Econoline—Front Inner—
1971FordF-100RWDFront Inner—
1971FordF-250—Front Innerwith Light Duty Brakes
1970FordE-100 Econoline—Front Inner—
1970FordF-100RWDFront Inner—
1970FordF-250—Front Innerwith Light Duty Brakes
1969FordE-100 Econoline—Front Inner—
1969FordF-250—Front Innerwith Light Duty Brakes
1968FordF-250—Front Innerwith Light Duty Brakes
1967FordF-250—Front Innerwith Light Duty Brakes
1966FordF-250—Front Innerwith Light Duty Brakes
1965FordF-250—Front Innerwith Light Duty Brakes