InMotion WS4739 Wheel Seal - Front Inner

Brand InMotion WS4739
Position Front Inner
Material Nitrile
External Markings 46497
Inside Diameter 1.98
Inside Diameter 50.4
Spring Material Sae 1008
Width 0.25
Width 6.4
Outside Diameter 2.57
Outside Diameter 65.2
Shaft Diameter 2
Shaft Diameter 50.8
Weight 14.1
Housing Bore 2.5609999999999999
Housing Bore 65.099999999999994
Fits Buick, Cadillac, Chevrolet, Dodge, GMC, Isuzu, and Oldsmobile · 259 vehicles

Nitrile construction. Provides a durable sealing surface that helps block contaminants and moisture.

Precision-engineered seal. Delivers a tight, reliable barrier to reduce leaks and protect internal components.

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Free returns within 60 days if it doesn't fit when fitment is verified.

Front Inner Differential Pinion Seal

The InMotion WS4739 is a front inner seal built for differential pinion applications that need a tight barrier against dirt, road moisture, and gear oil loss. Made from nitrile with an SAE 1008 spring, it is sized for precise housing and shaft fitment in a wide range of light truck and van applications.

Key Features

  • Nitrile sealing material for dependable fluid control
  • SAE 1008 spring material for consistent sealing pressure
  • Inside diameter: 1.98 in. / 50.4 mm
  • Outside diameter: 2.57 in. / 65.2 mm
  • Width: 0.25 in. / 6.4 mm
  • Shaft diameter: 2.00 in. / 50.8 mm
  • Housing bore: 2.561 in. / 65.1 mm
  • External markings: 46497
  • Part number: WS4739

Detailed Description

InMotion WS4739 is engineered as a front inner differential pinion seal for vehicles that rely on accurate sealing at the pinion area. Its nitrile construction helps maintain a secure seal around the shaft, while the spring-loaded design supports steady contact under operating conditions. This seal is a direct-fit service part for applications such as Chevrolet S10, GMC Sonoma, Chevrolet Astro, Chevrolet Blazer, and Dodge Ram 1500, along with many other front inner applications listed below. If you are replacing a leaking pinion seal or servicing a differential during maintenance, WS4739 provides the dimensions needed for a proper fit. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

  • Fits 1991-2003 Chevrolet S10, Front Inner
  • Fits 1991-2003 GMC Sonoma, Front Inner
  • Fits 1991-2002 Chevrolet Astro, Front Inner
  • Fits 1995-2002 Chevrolet Blazer, Front Inner
  • Fits 1996-2002 Chevrolet Express 1500, Front Inner
  • Fits 1996-2002 Chevrolet Express 2500, Front Inner, with Light Duty Brakes
  • Fits 1991-2002 GMC Safari, Front Inner
  • Fits 1996-2002 GMC Savana 1500, Front Inner
  • Fits 1996-2002 GMC Savana 2500, Front Inner, with Light Duty Brakes
  • Fits 1988-2000 Chevrolet C2500, Front Inner, with Light Duty Brakes
  • Fits 1995-2000 Chevrolet Tahoe, Front Inner
  • Fits 1988-2000 GMC C2500, Front Inner, with Light Duty Brakes
  • Fits 1996-2000 Isuzu Hombre, Front Inner
  • Fits 1995-1999 Chevrolet C1500, Front Inner, with Light Duty Brakes
  • Fits 1992-1999 Chevrolet C1500 Suburban, Front Inner, with Light Duty Brakes
  • Fits 1992-1999 Chevrolet C2500 Suburban, Front Inner, with Light Duty Brakes
  • Fits 1994-1999 Dodge Ram 1500, Front Inner
  • Fits 1995-1999 GMC C1500, Front Inner, with Light Duty Brakes
  • Fits 1995-1999 GMC C1500 Suburban, Front Inner, with Light Duty Brakes
  • Fits 1992-1999 GMC C2500 Suburban, Front Inner, with Light Duty Brakes
  • Fits 1992-1999 GMC Yukon, Front Inner
  • Fits 1992-1997 GMC Jimmy, Front Inner
  • Fits 1991-1996 Buick Roadmaster, Front Inner
  • Fits 1992-1996 Cadillac Commercial Chassis, Front Inner
  • Fits 1993-1996 Cadillac Fleetwood, Front Inner
  • Fits 1991-1996 Chevrolet Caprice, Front Inner
  • Fits 1994-1996 Chevrolet Impala, Front Inner
  • Fits 1991-1995 Chevrolet G10, Front Inner
  • Fits 1991-1995 Chevrolet G20, Front Inner, with Light Duty Brakes
  • Fits 1991-1995 GMC G1500, Front Inner
  • Fits 1991-1995 GMC G2500, Front Inner, with Light Duty Brakes
  • Fits 1988-1994 Chevrolet C1500, Front Inner
  • Fits 1991-1994 Chevrolet Commercial Chassis, Front Inner
  • Fits 1991-1994 Chevrolet S10 Blazer, Front Inner
  • Fits 1988-1994 GMC C1500, Front Inner
  • Fits 1992-1994 GMC C1500 Suburban, Front Inner
  • Fits 1990-1992 Cadillac Brougham, Front Inner
  • Fits 1991-1992 Oldsmobile Custom Cruiser, Front Inner
  • Fits 1991 Chevrolet R1500 Suburban, Front Inner
  • Fits 1991 GMC R1500 Suburban, Front Inner
  • Fits 1991 GMC S15 Jimmy, Front Inner

Common Repair Uses

  • Replacing a leaking front differential pinion seal
  • Restoring sealing performance after contamination from dirt or moisture
  • Addressing gear oil seepage at the pinion area
  • Servicing worn or hardened seal material during differential maintenance
  • Supporting proper sealing on high-mileage Chevrolet, GMC, and Dodge front axle applications

Installation Notes and Tips

Confirm shaft diameter, housing bore, and seal width before installation. Clean the seal bore and pinion surface thoroughly, and inspect the mating surface for wear or scoring that could affect sealing. Use proper installation tools to seat the seal evenly and avoid distortion. Verify that the application is Front Inner and that any Light Duty Brakes note matches the vehicle configuration.

Quality Assurance

InMotion WS4739 is built from nitrile with a spring-steel component specified as SAE 1008 for controlled sealing contact. The listed dimensions and external marking 46497 support accurate parts matching for service work on compatible front inner differential applications.

This part fits 259 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeFuel TypePositionNotes
2003ChevroletS10—RWD—Front Inner—
2003GMCSonoma—RWD—Front Inner—
2002ChevroletAstro—RWD—Front Inner—
2002ChevroletBlazer—RWD—Front Inner—
2002ChevroletExpress 1500———Front Inner—
2002ChevroletExpress 2500———Front Innerwith Light Duty Brakes
2002ChevroletS10—RWD—Front Inner—
2002GMCSafari—RWD—Front Inner—
2002GMCSavana 1500———Front Inner—
2002GMCSavana 2500———Front Innerwith Light Duty Brakes
2002GMCSonoma—RWD—Front Inner—
2001ChevroletAstro—RWD—Front Inner—
2001ChevroletBlazer—RWD—Front Inner—
2001ChevroletExpress 1500———Front Inner—
2001ChevroletExpress 2500———Front Innerwith Light Duty Brakes
2001ChevroletS10—RWD—Front Inner—
2001GMCSafari—RWD—Front Inner—
2001GMCSavana 1500———Front Inner—
2001GMCSavana 2500———Front Innerwith Light Duty Brakes
2001GMCSonoma—RWD—Front Inner—
2000ChevroletAstro—RWD—Front Inner—
2000ChevroletBlazer—RWD—Front Inner—
2000ChevroletC2500———Front Innerwith Light Duty Brakes
2000ChevroletExpress 1500———Front Inner—
2000ChevroletExpress 2500———Front Innerwith Light Duty Brakes
2000ChevroletS10—RWD—Front Inner—
2000ChevroletTahoeLimited——Front Inner—
2000GMCC2500———Front Innerwith Light Duty Brakes
2000GMCSafari—RWD—Front Inner—
2000GMCSavana 1500———Front Inner—
2000GMCSavana 2500———Front Innerwith Light Duty Brakes
2000GMCSonoma—RWD—Front Inner—
2000IsuzuHombre—RWD—Front Inner—
1999ChevroletAstro—RWD—Front Inner—
1999ChevroletBlazer—RWD—Front Inner—
1999ChevroletC1500———Front Innerwith Light Duty Brakes
1999ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1999ChevroletC2500———Front Innerwith Light Duty Brakes
1999ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1999ChevroletExpress 1500———Front Inner—
1999ChevroletExpress 2500———Front Innerwith Light Duty Brakes
1999ChevroletS10—RWD—Front Inner—
1999ChevroletTahoe—RWDGASFront Inner—
1999DodgeRam 1500—RWD—Front Inner—
1999GMCC1500———Front Innerwith Light Duty Brakes
1999GMCC1500 Suburban———Front Innerwith Light Duty Brakes
1999GMCC2500———Front Innerwith Light Duty Brakes
1999GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1999GMCSafari—RWD—Front Inner—
1999GMCSavana 1500———Front Inner—
1999GMCSavana 2500———Front Innerwith Light Duty Brakes
1999GMCSonoma—RWD—Front Inner—
1999GMCYukon—RWD—Front Inner—
1999IsuzuHombre—RWD—Front Inner—
1998ChevroletAstro—RWD—Front Inner—
1998ChevroletBlazer—RWD—Front Inner—
1998ChevroletC1500———Front Innerwith Light Duty Brakes
1998ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1998ChevroletC2500———Front Innerwith Light Duty Brakes
1998ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1998ChevroletExpress 1500———Front Inner—
1998ChevroletExpress 2500———Front Innerwith Light Duty Brakes
1998ChevroletS10—RWD—Front Inner—
1998ChevroletTahoe—RWDGASFront Inner—
1998DodgeRam 1500—RWD—Front Inner—
1998GMCC1500———Front Innerwith Light Duty Brakes
1998GMCC1500 Suburban———Front Innerwith Light Duty Brakes
1998GMCC2500———Front Innerwith Light Duty Brakes
1998GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1998GMCSafari—RWD—Front Inner—
1998GMCSavana 1500———Front Inner—
1998GMCSavana 2500———Front Innerwith Light Duty Brakes
1998GMCSonoma—RWD—Front Inner—
1998GMCYukon—RWD—Front Inner—
1998IsuzuHombre—RWD—Front Inner—
1997ChevroletAstro—RWD—Front Inner—
1997ChevroletBlazer—RWD—Front Inner—
1997ChevroletC1500———Front Innerwith Light Duty Brakes
1997ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1997ChevroletC2500———Front Innerwith Light Duty Brakes
1997ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1997ChevroletExpress 1500———Front Inner—
1997ChevroletExpress 2500———Front Innerwith Light Duty Brakes
1997ChevroletS10—RWD—Front Inner—
1997ChevroletTahoe—RWDGASFront Inner—
1997DodgeRam 1500—RWD—Front Inner—
1997GMCC1500———Front Innerwith Light Duty Brakes
1997GMCC1500 Suburban———Front Innerwith Light Duty Brakes
1997GMCC2500———Front Innerwith Light Duty Brakes
1997GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1997GMCJimmy—RWD—Front Inner—
1997GMCSafari—RWD—Front Inner—
1997GMCSavana 1500———Front Inner—
1997GMCSavana 2500———Front Innerwith Light Duty Brakes
1997GMCSonoma—RWD—Front Inner—
1997GMCYukon—RWD—Front Inner—
1997IsuzuHombre———Front Inner—
1996BuickRoadmaster———Front Inner—
1996CadillacCommercial Chassis———Front Inner—
1996CadillacFleetwood———Front Inner—
1996ChevroletAstro—RWD—Front Inner—
1996ChevroletBlazer—RWD—Front Inner—
1996ChevroletC1500———Front Innerwith Light Duty Brakes
1996ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1996ChevroletC2500———Front Innerwith Light Duty Brakes
1996ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1996ChevroletCaprice———Front Inner—
1996ChevroletExpress 1500———Front Inner—
1996ChevroletExpress 2500———Front Innerwith Light Duty Brakes
1996ChevroletImpala———Front Inner—
1996ChevroletS10—RWD—Front Inner—
1996ChevroletTahoe—RWDGASFront Inner—
1996DodgeRam 1500—RWD—Front Inner—
1996GMCC1500———Front Innerwith Light Duty Brakes
1996GMCC1500 Suburban———Front Innerwith Light Duty Brakes
1996GMCC2500———Front Innerwith Light Duty Brakes
1996GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1996GMCJimmy—RWD—Front Inner—
1996GMCSafari—RWD—Front Inner—
1996GMCSavana 1500———Front Inner—
1996GMCSavana 2500———Front Innerwith Light Duty Brakes
1996GMCSonoma—RWD—Front Inner—
1996GMCYukon—RWD—Front Inner—
1996IsuzuHombre———Front Inner—
1995BuickRoadmaster———Front Inner—
1995CadillacCommercial Chassis———Front Inner—
1995CadillacFleetwood———Front Inner—
1995ChevroletAstro—RWD—Front Inner—
1995ChevroletBlazer—RWD—Front Inner—
1995ChevroletC1500———Front Innerwith Light Duty Brakes
1995ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1995ChevroletC2500———Front Innerwith Light Duty Brakes
1995ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1995ChevroletCaprice———Front Inner—
1995ChevroletG10———Front Inner—
1995ChevroletG20———Front Innerwith Light Duty Brakes
1995ChevroletImpala———Front Inner—
1995ChevroletS10—RWD—Front Inner—
1995ChevroletTahoe—RWDGASFront Inner—
1995DodgeRam 1500—RWD—Front Inner—
1995GMCC1500———Front Innerwith Light Duty Brakes
1995GMCC1500 Suburban———Front Innerwith Light Duty Brakes
1995GMCC2500———Front Innerwith Light Duty Brakes
1995GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1995GMCG1500———Front Inner—
1995GMCG2500———Front Innerwith Light Duty Brakes
1995GMCJimmy—RWD—Front Inner—
1995GMCSafari—RWD—Front Inner—
1995GMCSonoma—RWD—Front Inner—
1995GMCYukon—RWD—Front Inner—
1994BuickRoadmaster———Front Inner—
1994CadillacCommercial Chassis———Front Inner—
1994CadillacFleetwood———Front Inner—
1994ChevroletAstro—RWD—Front Inner—
1994ChevroletC1500———Front Inner—
1994ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1994ChevroletC2500———Front Innerwith Light Duty Brakes
1994ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1994ChevroletCaprice———Front Inner—
1994ChevroletCommercial Chassis———Front Inner—
1994ChevroletG10———Front Inner—
1994ChevroletG20———Front Innerwith Light Duty Brakes
1994ChevroletImpala———Front Inner—
1994ChevroletS10—RWD—Front Inner—
1994ChevroletS10 Blazer—RWD—Front Inner—
1994DodgeRam 1500—RWD—Front Inner—
1994GMCC1500———Front Inner—
1994GMCC1500 Suburban———Front Inner—
1994GMCC2500———Front Innerwith Light Duty Brakes
1994GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1994GMCG1500———Front Inner—
1994GMCG2500———Front Innerwith Light Duty Brakes
1994GMCJimmy—RWD—Front Inner—
1994GMCSafari—RWD—Front Inner—
1994GMCSonoma—RWD—Front Inner—
1994GMCYukon—RWD—Front Inner—
1993BuickRoadmaster———Front Inner—
1993CadillacCommercial Chassis—RWD—Front Inner—
1993CadillacFleetwood———Front Inner—
1993ChevroletAstro—RWD—Front Inner—
1993ChevroletC1500———Front Inner—
1993ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1993ChevroletC2500———Front Innerwith Light Duty Brakes
1993ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1993ChevroletCaprice———Front Inner—
1993ChevroletCommercial Chassis———Front Inner—
1993ChevroletG10———Front Inner—
1993ChevroletG20———Front Innerwith Light Duty Brakes
1993ChevroletS10—RWD—Front Inner—
1993ChevroletS10 Blazer—RWD—Front Inner—
1993GMCC1500———Front Inner—
1993GMCC1500 Suburban———Front Inner—
1993GMCC2500———Front Innerwith Light Duty Brakes
1993GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1993GMCG1500———Front Inner—
1993GMCG2500———Front Innerwith Light Duty Brakes
1993GMCJimmy—RWD—Front Inner—
1993GMCSafari—RWD—Front Inner—
1993GMCSonoma—RWD—Front Inner—
1993GMCYukon—RWD—Front Inner—
1992BuickRoadmaster———Front Inner—
1992CadillacBrougham———Front Inner—
1992CadillacCommercial Chassis—RWD—Front Inner—
1992ChevroletAstro—RWD—Front Inner—
1992ChevroletC1500———Front Inner—
1992ChevroletC1500 Suburban———Front Innerwith Light Duty Brakes
1992ChevroletC2500———Front Innerwith Light Duty Brakes
1992ChevroletC2500 Suburban———Front Innerwith Light Duty Brakes
1992ChevroletCaprice———Front Inner—
1992ChevroletCommercial Chassis———Front Inner—
1992ChevroletG10———Front Inner—
1992ChevroletG20———Front Innerwith Light Duty Brakes
1992ChevroletS10—RWD—Front Inner—
1992ChevroletS10 Blazer—RWD—Front Inner—
1992GMCC1500———Front Inner—
1992GMCC1500 Suburban———Front Inner—
1992GMCC2500———Front Innerwith Light Duty Brakes
1992GMCC2500 Suburban———Front Innerwith Light Duty Brakes
1992GMCG1500———Front Inner—
1992GMCG2500———Front Innerwith Light Duty Brakes
1992GMCJimmy—RWD—Front Inner—
1992GMCSafari—RWD—Front Inner—
1992GMCSonoma—RWD—Front Inner—
1992GMCYukon—RWD—Front Inner—
1992OldsmobileCustom Cruiser———Front Inner—
1991BuickRoadmaster———Front Inner—
1991CadillacBrougham———Front Inner—
1991ChevroletAstro—RWD—Front Inner—
1991ChevroletC1500———Front Inner—
1991ChevroletC2500———Front Innerwith Light Duty Brakes
1991ChevroletCaprice———Front Inner—
1991ChevroletCommercial Chassis———Front Inner—
1991ChevroletG10———Front Inner—
1991ChevroletG20———Front Innerwith Light Duty Brakes
1991ChevroletR1500 Suburban———Front Inner—
1991ChevroletS10—RWD—Front Inner—
1991ChevroletS10 Blazer—RWD—Front Inner—
1991GMCC1500———Front Inner—
1991GMCC2500———Front Innerwith Light Duty Brakes
1991GMCG1500———Front Inner—
1991GMCG2500———Front Innerwith Light Duty Brakes
1991GMCR1500 Suburban———Front Inner—
1991GMCS15 Jimmy—RWD—Front Inner—
1991GMCSafari—RWD—Front Inner—
1991GMCSonoma—RWD—Front Inner—
1991OldsmobileCustom Cruiser———Front Inner—
1990CadillacBrougham———Front Inner—
1990ChevroletC1500———Front Inner—
1990ChevroletC2500———Front Innerwith Light Duty Brakes
1990GMCC1500———Front Inner—
1990GMCC2500———Front Innerwith Light Duty Brakes
1989ChevroletC1500———Front Inner—
1989ChevroletC2500———Front Innerwith Light Duty Brakes
1989GMCC1500———Front Inner—
1989GMCC2500———Front Innerwith Light Duty Brakes
1988ChevroletC1500———Front Inner—
1988ChevroletC2500———Front Innerwith Light Duty Brakes
1988GMCC1500———Front Inner—
1988GMCC2500———Front Innerwith Light Duty Brakes