HomeDriveline and Axles > Gaskets and Sealing SystemsNational 710491 Drive Axle Shaft Seal - Front Inner
Part #: 710491

National 710491 Drive Axle Shaft Seal - Front Inner

Front Inner
123 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$20.80Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, Oldsmobile, and Isuzu, Express 1500, Savana 1500, Envoy, Envoy XL, Astro, Blazer, Express 2500, Envoy XUV, Jimmy, Safari, Savana 2500, S10, Sonoma, Bravada, and Hombre
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Drive Axle Shaft Seal for Chevrolet and GMC Vehicles

The National 710491 drive axle shaft seal is engineered to provide effective sealing for driveline components in select Chevrolet, GMC, Isuzu, and Oldsmobile models. Designed with durable polyacrylate material and a bi-directional lip design, this oil seal helps maintain optimal axle performance and prevent leaks.

  • Constructed from high-quality polyacrylate for durability and resistance to wear
  • Bi-directional helix lip design ensures effective sealing under varying rotational directions
  • Inside diameter options of 1.575 inch (40.000 mm) and shaft diameter compatibility of 1.560 inch (39.600 mm)
  • Outside diameter measures 2.724 inch (69.200 mm) with a housing bore of 2.717 inch (69.000 mm)
  • Thickness and width dimensions of 0.531 inch (13.500 mm) and 0.610 inch (15.500 mm) respectively for precise fitment

This National 710491 drive axle shaft seal is part of the 710400 series, designed specifically for driveline and axle sealing applications. Its polyacrylate construction offers resistance to heat and contaminants, while the bi-directional lip design provides reliable sealing performance in both rotational directions. The seal’s precise dimensions ensure compatibility with shafts measuring approximately 1.56 inches and housings around 2.72 inches in diameter, making it suitable for a range of vehicles.

Compatible Vehicles and Applications

This drive axle shaft seal is compatible with various Chevrolet, GMC, Isuzu, and Oldsmobile models, including Chevrolet Astro, Blazer, S10, Trailblazer, GMC Envoy series, Safari, Savana 1500/2500, and Oldsmobile Bravada. It is designed to maintain axle integrity by preventing oil leaks and contamination in these driveline systems.

  • Prevents oil leaks from the drive axle shaft
  • Protects axle bearings and components from dirt and debris
  • Maintains proper lubrication within the axle assembly
  • Reduces risk of driveline damage due to seal failure
  • Helps avoid costly repairs related to axle shaft wear

Installation Notes and Tips

When installing the National 710491 drive axle shaft seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the bi-directional lip design for optimal performance. Lubricate the seal lip lightly with compatible axle oil before installation to reduce initial wear.

Quality Assurance and Warranty

National manufactures the 710491 seal to meet industry standards for driveline sealing components. The polyacrylate material and design features provide reliable service life under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product quality.

BrandNational
Part Number710491
Helix TypeBi-Directional Lip Design
Housing Bore (Inch)2.717
Housing Bore (MM)69.000
Inside Diameter1.575
Inside Diameter40.000
MaterialPolyacrylate
Outside Diameter2.724
Outside Diameter69.200
Outside Diameter (Inch)2.724
Outside Diameter (mm)69.200
Part DescriptionOil Seal
Series710400
Shaft (Inch)1.560
Shaft (MM)39.600
Thickness0.531
Thickness13.500
Type#
Unit of DimensionInch
Width (Inch)0.610
Width (mm)15.500

This part fits 123 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2014ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2014GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2013ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2013GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2012ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2012GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2011ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2011GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2010ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2010GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009ChevroletTrailblazer4WDFront Inner
2009GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008ChevroletTrailblazer4WDFront Inner
2008GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007ChevroletTrailblazer4WDFront Inner
2007GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006ChevroletTrailblazer4WDFront Inner
2006GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006GMCEnvoy XL4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletExpress 2500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletTrailblazer4WDFront Inner
2005GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCEnvoy XL4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCEnvoy XUV4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCJimmyFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCSavana 2500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletExpress 2500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletS10Front InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletTrailblazer4WDFront Inner
2004GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCEnvoy XL4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCEnvoy XUV4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSavana 2500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSonomaFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletExpress 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletExpress 2500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletTrailblazer4WDFront Inner
2003GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCEnvoy XL4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSavana 1500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSavana 2500AWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletTrailblazer4WDFront Inner
2002GMCEnvoy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCEnvoy XL4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001ChevroletBlazerAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001GMCJimmyAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2001OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000ChevroletBlazerAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000GMCJimmyAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000IsuzuHombre4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2000OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999ChevroletBlazerAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999GMCJimmyAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999IsuzuHombre4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1999OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998IsuzuHombre4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1998OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997ChevroletAstroAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997ChevroletBlazer4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997ChevroletBlazerAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997ChevroletS104WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997GMCJimmy4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997GMCSafariAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997GMCSonoma4WDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
1997OldsmobileBravadaAWDFront InnerFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.

* 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:

124715861247168015552260533227104918-12471586-08-12471680-08-26053-322-0

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