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National 4739 Wheel Seal - Front InnerOE Quality 60-Day Returns
Part #: 4739

National 4739 Wheel Seal - Front Inner

Front Inner
259 vehicles fit this part
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Fitment: Chevrolet, GMC, Isuzu, Dodge, Buick, Cadillac, and Oldsmobile, S10, Sonoma, Astro, Blazer, Express 1500, Express 2500, Safari, Savana 1500, Savana 2500, C2500, Tahoe, Hombre, C1500, C1500 Suburban, C2500 Suburban, Ram 1500, Yukon, Jimmy, Commercial Chassis, Roadmaster, Fleetwood, Caprice, Impala, G10, G20, LLV, G1500, G2500, S10 Blazer, Brougham, Custom Cruiser, R1500 Suburban, S15 Jimmy, and Caballero
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National 4739 Wheel Seal Overview

The National 4739 wheel seal is engineered for reliable driveline protection in select Buick, Chevrolet, GMC, and other vehicle models. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain optimal axle performance by preventing lubricant leaks and contamination.

  • Inside diameter: 2.000 inches (50.8 mm)
  • Outside diameter: 2.565 inches (65.15 mm)
  • Width: 0.250 inches (6.35 mm)
  • Material: Nitrile rubber for resistance to oil and wear
  • Flanged outside diameter: 0.011 inches (0.28 mm)
  • Housing bore diameter: 2.561 inches (65.05 mm)
  • Redicoat surface treatment for enhanced durability
  • Series 4000, Type 282 oil seal design

Detailed Product Description

The National 4739 wheel seal is part of the Series 4000 line, known for its consistent sealing performance in automotive driveline applications. Constructed from nitrile, this oil seal offers resistance to petroleum-based fluids and maintains flexibility across a range of temperatures. The precise inside diameter of 2.000 inches (50.8 mm) and outside diameter of 2.565 inches (65.15 mm) ensure a secure fit on shafts and housings, minimizing the risk of leaks. The flanged outside diameter and Redicoat treatment provide additional protection against wear and corrosion, extending the service life of the seal.

Compatible Vehicle Applications

This wheel seal is compatible with a variety of vehicles including Buick Brougham, Cadillac Fleetwood, Chevrolet Blazer, C1500, and Tahoe, as well as GMC Jimmy, Sierra, and Yukon models. It also fits Dodge Ram 1500 and Isuzu Hombre, among others. The National 4739 is designed to meet the specific sealing requirements of these models, ensuring proper fit and function.

Common Issues Addressed by National 4739 Wheel Seal

  • Prevents axle lubricant leaks that can cause driveline damage
  • Protects bearings and shafts from dirt and moisture intrusion
  • Reduces risk of premature wear due to contamination
  • Maintains proper lubrication for smooth wheel rotation
  • Helps avoid costly repairs related to seal failure

Installation Notes and Tips

  • Ensure the shaft and housing bore are clean and free of debris before installation
  • Use appropriate tools to press the seal evenly into the housing bore without distortion
  • Verify the seal orientation matches the oil seal design specifications (lip facing lubricant)
  • Check shaft diameter compatibility (2.000 inches) to avoid leaks
  • Inspect the seal for damage prior to installation

Quality Assurance and Warranty

National wheel seals, including part number 4739, are manufactured to meet industry standards for durability and performance. The use of nitrile material and Redicoat treatment ensures resistance to oil and environmental factors. While specific warranty terms may vary, National products typically come with a limited warranty against manufacturing defects, providing confidence in the product's reliability for Buick, Chevrolet, GMC, and Dodge vehicle applications.

BrandNational
Part Number4739
Flanged Outside Diameter (Inch)0.011
Flanged Outside Diameter (MM)0.280
Housing Bore (Inch)2.561
Housing Bore (MM)65.050
Inside Diameter2.000
Inside Diameter50.800
MaterialNitrile
Outside Diameter2.565
Outside Diameter65.150
Outside Diameter (Inch)2.565
Outside Diameter (mm)65.150
Part DescriptionOil Seal
RedicoatYes
Series4000
Shaft (Inch)2.000
Shaft (MM)50.800
Type282
Unit of DimensionInch
Width (Inch)0.250
Width (mm)6.350

This part fits 259 vehicles. Search below:

YearMakeModelSubmodelDrive TypeFuel TypePositionNotes
2003ChevroletS10RWDFront Inner
2003GMCSonomaRWDFront Inner
2002ChevroletAstroRWDFront Inner
2002ChevroletBlazerRWDFront Inner
2002ChevroletExpress 1500Front Inner
2002ChevroletExpress 2500Front Innerwith Light Duty Brakes
2002ChevroletS10RWDFront Inner
2002GMCSafariRWDFront Inner
2002GMCSavana 1500Front Inner
2002GMCSavana 2500Front Innerwith Light Duty Brakes
2002GMCSonomaRWDFront Inner
2001ChevroletAstroRWDFront Inner
2001ChevroletBlazerRWDFront Inner
2001ChevroletExpress 1500Front Inner
2001ChevroletExpress 2500Front Innerwith Light Duty Brakes
2001ChevroletS10RWDFront Inner
2001GMCSafariRWDFront Inner
2001GMCSavana 1500Front Inner
2001GMCSavana 2500Front Innerwith Light Duty Brakes
2001GMCSonomaRWDFront Inner
2000ChevroletAstroRWDFront Inner
2000ChevroletBlazerRWDFront Inner
2000ChevroletC2500Front Innerwith Light Duty Brakes
2000ChevroletExpress 1500Front Inner
2000ChevroletExpress 2500Front Innerwith Light Duty Brakes
2000ChevroletS10RWDFront Inner
2000ChevroletTahoeLimitedFront Inner
2000GMCC2500Front Innerwith Light Duty Brakes
2000GMCSafariRWDFront Inner
2000GMCSavana 1500Front Inner
2000GMCSavana 2500Front Innerwith Light Duty Brakes
2000GMCSonomaRWDFront Inner
2000IsuzuHombreRWDFront Inner
1999ChevroletAstroRWDFront Inner
1999ChevroletBlazerRWDFront Inner
1999ChevroletC1500Front Innerwith Light Duty Brakes
1999ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1999ChevroletC2500Front Innerwith Light Duty Brakes
1999ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1999ChevroletExpress 1500Front Inner
1999ChevroletExpress 2500Front Innerwith Light Duty Brakes
1999ChevroletS10RWDFront Inner
1999ChevroletTahoeRWDGASFront Inner
1999DodgeRam 1500RWDFront Inner
1999GMCC1500Front Innerwith Light Duty Brakes
1999GMCC1500 SuburbanFront Innerwith Light Duty Brakes
1999GMCC2500Front Innerwith Light Duty Brakes
1999GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1999GMCSafariRWDFront Inner
1999GMCSavana 1500Front Inner
1999GMCSavana 2500Front Innerwith Light Duty Brakes
1999GMCSonomaRWDFront Inner
1999GMCYukonRWDFront Inner
1999IsuzuHombreRWDFront Inner
1998ChevroletAstroRWDFront Inner
1998ChevroletBlazerRWDFront Inner
1998ChevroletC1500Front Innerwith Light Duty Brakes
1998ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1998ChevroletC2500Front Innerwith Light Duty Brakes
1998ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1998ChevroletExpress 1500Front Inner
1998ChevroletExpress 2500Front Innerwith Light Duty Brakes
1998ChevroletS10RWDFront Inner
1998ChevroletTahoeRWDGASFront Inner
1998DodgeRam 1500RWDFront Inner
1998GMCC1500Front Innerwith Light Duty Brakes
1998GMCC1500 SuburbanFront Innerwith Light Duty Brakes
1998GMCC2500Front Innerwith Light Duty Brakes
1998GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1998GMCSafariRWDFront Inner
1998GMCSavana 1500Front Inner
1998GMCSavana 2500Front Innerwith Light Duty Brakes
1998GMCSonomaRWDFront Inner
1998GMCYukonRWDFront Inner
1998IsuzuHombreRWDFront Inner
1997ChevroletAstroRWDFront Inner
1997ChevroletBlazerRWDFront Inner
1997ChevroletC1500Front Innerwith Light Duty Brakes
1997ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1997ChevroletC2500Front Innerwith Light Duty Brakes
1997ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1997ChevroletExpress 1500Front Inner
1997ChevroletExpress 2500Front Innerwith Light Duty Brakes
1997ChevroletS10RWDFront Inner
1997ChevroletTahoeRWDGASFront Inner
1997DodgeRam 1500RWDFront Inner
1997GMCC1500Front Innerwith Light Duty Brakes
1997GMCC1500 SuburbanFront Innerwith Light Duty Brakes
1997GMCC2500Front Innerwith Light Duty Brakes
1997GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1997GMCJimmyRWDFront Inner
1997GMCSafariRWDFront Inner
1997GMCSavana 1500Front Inner
1997GMCSavana 2500Front Innerwith Light Duty Brakes
1997GMCSonomaRWDFront Inner
1997GMCYukonRWDFront Inner
1997IsuzuHombreFront Inner
1996BuickRoadmasterFront Inner
1996CadillacCommercial ChassisFront Inner
1996CadillacFleetwoodFront Inner
1996ChevroletAstroRWDFront Inner
1996ChevroletBlazerRWDFront Inner
1996ChevroletC1500Front Innerwith Light Duty Brakes
1996ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1996ChevroletC2500Front Innerwith Light Duty Brakes
1996ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1996ChevroletCapriceFront Inner
1996ChevroletExpress 1500Front Inner
1996ChevroletExpress 2500Front Innerwith Light Duty Brakes
1996ChevroletImpalaFront Inner
1996ChevroletS10RWDFront Inner
1996ChevroletTahoeRWDGASFront Inner
1996DodgeRam 1500RWDFront Inner
1996GMCC1500Front Innerwith Light Duty Brakes
1996GMCC1500 SuburbanFront Innerwith Light Duty Brakes
1996GMCC2500Front Innerwith Light Duty Brakes
1996GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1996GMCJimmyRWDFront Inner
1996GMCSafariRWDFront Inner
1996GMCSavana 1500Front Inner
1996GMCSavana 2500Front Innerwith Light Duty Brakes
1996GMCSonomaRWDFront Inner
1996GMCYukonRWDFront Inner
1996IsuzuHombreFront Inner
1995BuickRoadmasterFront Inner
1995CadillacCommercial ChassisFront Inner
1995CadillacFleetwoodFront Inner
1995ChevroletAstroRWDFront Inner
1995ChevroletBlazerRWDFront Inner
1995ChevroletC1500Front Innerwith Light Duty Brakes
1995ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1995ChevroletC2500Front Innerwith Light Duty Brakes
1995ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1995ChevroletCapriceFront Inner
1995ChevroletG10Front Inner
1995ChevroletG20Front Innerwith Light Duty Brakes
1995ChevroletImpalaFront Inner
1995ChevroletS10RWDFront Inner
1995ChevroletTahoeRWDGASFront Inner
1995DodgeRam 1500RWDFront Inner
1995GMCC1500Front Innerwith Light Duty Brakes
1995GMCC1500 SuburbanFront Innerwith Light Duty Brakes
1995GMCC2500Front Innerwith Light Duty Brakes
1995GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1995GMCG1500Front Inner
1995GMCG2500Front Innerwith Light Duty Brakes
1995GMCJimmyRWDFront Inner
1995GMCSafariRWDFront Inner
1995GMCSonomaRWDFront Inner
1995GMCYukonRWDFront Inner
1994BuickRoadmasterFront Inner
1994CadillacCommercial ChassisFront Inner
1994CadillacFleetwoodFront Inner
1994ChevroletAstroRWDFront Inner
1994ChevroletC1500Front Inner
1994ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1994ChevroletC2500Front Innerwith Light Duty Brakes
1994ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1994ChevroletCapriceFront Inner
1994ChevroletCommercial ChassisFront Inner
1994ChevroletG10Front Inner
1994ChevroletG20Front Innerwith Light Duty Brakes
1994ChevroletImpalaFront Inner
1994ChevroletS10RWDFront Inner
1994ChevroletS10 BlazerRWDFront Inner
1994DodgeRam 1500RWDFront Inner
1994GMCC1500Front Inner
1994GMCC1500 SuburbanFront Inner
1994GMCC2500Front Innerwith Light Duty Brakes
1994GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1994GMCG1500Front Inner
1994GMCG2500Front Innerwith Light Duty Brakes
1994GMCJimmyRWDFront Inner
1994GMCSafariRWDFront Inner
1994GMCSonomaRWDFront Inner
1994GMCYukonRWDFront Inner
1993BuickRoadmasterFront Inner
1993CadillacCommercial ChassisRWDFront Inner
1993CadillacFleetwoodFront Inner
1993ChevroletAstroRWDFront Inner
1993ChevroletC1500Front Inner
1993ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1993ChevroletC2500Front Innerwith Light Duty Brakes
1993ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1993ChevroletCapriceFront Inner
1993ChevroletCommercial ChassisFront Inner
1993ChevroletG10Front Inner
1993ChevroletG20Front Innerwith Light Duty Brakes
1993ChevroletS10RWDFront Inner
1993ChevroletS10 BlazerRWDFront Inner
1993GMCC1500Front Inner
1993GMCC1500 SuburbanFront Inner
1993GMCC2500Front Innerwith Light Duty Brakes
1993GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1993GMCG1500Front Inner
1993GMCG2500Front Innerwith Light Duty Brakes
1993GMCJimmyRWDFront Inner
1993GMCSafariRWDFront Inner
1993GMCSonomaRWDFront Inner
1993GMCYukonRWDFront Inner
1992BuickRoadmasterFront Inner
1992CadillacBroughamFront Inner
1992CadillacCommercial ChassisRWDFront Inner
1992ChevroletAstroRWDFront Inner
1992ChevroletC1500Front Inner
1992ChevroletC1500 SuburbanFront Innerwith Light Duty Brakes
1992ChevroletC2500Front Innerwith Light Duty Brakes
1992ChevroletC2500 SuburbanFront Innerwith Light Duty Brakes
1992ChevroletCapriceFront Inner
1992ChevroletCommercial ChassisFront Inner
1992ChevroletG10Front Inner
1992ChevroletG20Front Innerwith Light Duty Brakes
1992ChevroletS10RWDFront Inner
1992ChevroletS10 BlazerRWDFront Inner
1992GMCC1500Front Inner
1992GMCC1500 SuburbanFront Inner
1992GMCC2500Front Innerwith Light Duty Brakes
1992GMCC2500 SuburbanFront Innerwith Light Duty Brakes
1992GMCG1500Front Inner
1992GMCG2500Front Innerwith Light Duty Brakes
1992GMCJimmyRWDFront Inner
1992GMCSafariRWDFront Inner
1992GMCSonomaRWDFront Inner
1992GMCYukonRWDFront Inner
1992OldsmobileCustom CruiserFront Inner
1991BuickRoadmasterFront Inner
1991CadillacBroughamFront Inner
1991ChevroletAstroRWDFront Inner
1991ChevroletC1500Front Inner
1991ChevroletC2500Front Innerwith Light Duty Brakes
1991ChevroletCapriceFront Inner
1991ChevroletCommercial ChassisFront Inner
1991ChevroletG10Front Inner
1991ChevroletG20Front Innerwith Light Duty Brakes
1991ChevroletR1500 SuburbanFront Inner
1991ChevroletS10RWDFront Inner
1991ChevroletS10 BlazerRWDFront Inner
1991GMCC1500Front Inner
1991GMCC2500Front Innerwith Light Duty Brakes
1991GMCG1500Front Inner
1991GMCG2500Front Innerwith Light Duty Brakes
1991GMCR1500 SuburbanFront Inner
1991GMCS15 JimmyRWDFront Inner
1991GMCSafariRWDFront Inner
1991GMCSonomaRWDFront Inner
1991OldsmobileCustom CruiserFront Inner
1990CadillacBroughamFront Inner
1990ChevroletC1500Front Inner
1990ChevroletC2500Front Innerwith Light Duty Brakes
1990GMCC1500Front Inner
1990GMCC2500Front Innerwith Light Duty Brakes
1989ChevroletC1500Front Inner
1989ChevroletC2500Front Innerwith Light Duty Brakes
1989GMCC1500Front Inner
1989GMCC2500Front Innerwith Light Duty Brakes
1988ChevroletC1500Front Inner
1988ChevroletC2500Front Innerwith Light Duty Brakes
1988GMCC1500Front Inner
1988GMCC2500Front Innerwith Light Duty Brakes

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

This part directly replaces or is cross-referenced with the following part numbers:

039650920704-349915650232156516601975319784290-257290-2693965092417.660044319753473948272520076588-03965092-0

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.