HomeDriveline and Axles > Gaskets and Sealing SystemsNational 710547 Differential Pinion Seal - Front Outer
Part #: 710547

National 710547 Differential Pinion Seal - Front Outer

Front Outer
101 vehicles fit this part
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Fitment: Chevrolet, GMC, Saab, Isuzu, Buick, and Oldsmobile, Express 1500, Savana 1500, Trailblazer, Envoy, 9-7x, Ascender, Rainier, Trailblazer EXT, Envoy XL, Astro, Blazer, Express 2500, Envoy XUV, Jimmy, Safari, Savana 2500, S10, Sonoma, and Bravada
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National 710547 Differential Pinion Seal

National 710547 is a differential pinion seal built for front outer applications that require precise sealing around the pinion shaft. It uses nitrile material and OE-style dimensions to help maintain proper lubricant retention in the differential housing.

  • Part number: 710547
  • Part description: oil seal for driveline and axle sealing systems
  • Material: nitrile
  • Inside diameter: 1.521 in. / 38.630 mm
  • Outside diameter: 2.669 in. / 67.790 mm
  • Flanged outside diameter: 2.874 in. / 73.000 mm
  • Housing bore: 2.661 in. / 67.590 mm
  • Thickness/width: 0.445 in. / 11.300 mm
  • Series: 710500

Fitment and application details

This differential pinion seal is listed for front outer positions on vehicles with a 7.25-inch ring gear and AAM axle, featuring independent front suspension. It fits 2003-2014 Chevrolet Express 1500, front outer; 2003-2014 GMC Savana 1500, front outer; 2002-2009 Chevrolet Trailblazer, front outer; and 2002-2009 GMC Envoy, front outer. It also fits 2005-2009 Saab 9-7x, front outer, and 2003-2008 Isuzu Ascender, front outer.

Additional coverage includes 2004-2007 Buick Rainier, front outer; 2002-2006 Chevrolet Trailblazer EXT, front outer; 2002-2006 GMC Envoy XL, front outer; 2002-2005 Chevrolet Astro, front outer; 2002-2005 Chevrolet Blazer, front outer; 2003-2005 Chevrolet Express 2500, front outer; 2004-2005 GMC Envoy XUV, front outer; 2002-2005 GMC Jimmy, front outer; 2002-2005 GMC Safari, front outer; 2003-2005 GMC Savana 2500, front outer; 2002-2004 Chevrolet S10, front outer; 2002-2004 GMC Sonoma, front outer; and 2002-2004 Oldsmobile Bravada, front outer.

Key features

  • National sealing solution for driveline and axle service
  • Nitrile construction for sealing performance in oil-exposed locations
  • OE-style dimensions for the specified housing bore and shaft size
  • Built for front outer differential pinion seal applications
  • Cross-reference: Four Seasons 14946

What this seal helps address

  • Differential gear oil seepage at the pinion area
  • Fluid loss around the front outer axle seal location
  • Contamination entering the differential through a worn seal
  • Noise or driveline concerns caused by low lubricant level
  • Service replacement for aging seals on Chevrolet, GMC, Saab, Isuzu, Buick, and Oldsmobile applications

Installation notes and tips

Verify the shaft diameter, housing bore, and seal width before installation. This part is specified for vehicles with a 7.25-inch ring gear and AAM axle with independent front suspension, so confirm axle configuration and position before ordering. Clean the sealing surface thoroughly and inspect the shaft for wear or scoring that could affect seal life.

Quality assurance

National has supplied premium sealing solutions for more than 75 years and continues to develop sealing products for modern vehicle applications. Part number 710547 is part of the National 710500 series and is engineered to meet the dimensional requirements listed for the application.

BrandNational
Part Number710547
Flanged Outside Diameter (Inch)2.874
Flanged Outside Diameter (MM)73.000
Housing Bore (Inch)2.661
Housing Bore (MM)67.590
Inside Diameter1.521
Inside Diameter38.630
MaterialNitrile
Outside Diameter2.669
Outside Diameter67.790
Outside Diameter (Inch)2.669
Outside Diameter (mm)67.790
Part DescriptionOil Seal
Series710500
Shaft (Inch)1.521
Shaft (MM)38.630
Thickness0.445
Thickness11.300
Type75
Unit of DimensionInch
Width (Inch)0.445
Width (mm)11.300

This part fits 101 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2014ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2014GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2013ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2013GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2012ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2012GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2011ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2011GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2010ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2010GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009ChevroletTrailblazerAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2009Saab9-7xFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008ChevroletTrailblazerAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008IsuzuAscender4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2008Saab9-7xFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007BuickRainierAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007ChevroletTrailblazerAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007IsuzuAscender4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2007Saab9-7xFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006BuickRainierAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006ChevroletTrailblazer EXT4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006GMCEnvoy XL4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006IsuzuAscender4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2006Saab9-7xFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005BuickRainierAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletAstroAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletBlazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletExpress 2500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005ChevroletTrailblazer EXT4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCEnvoy XL4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCEnvoy XUV4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCJimmyFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCSafariAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005GMCSavana 2500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005IsuzuAscender4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2005Saab9-7xFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004BuickRainierAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletAstroAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletBlazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletExpress 2500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletS10Front OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004ChevroletTrailblazer EXT4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCEnvoy XL4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCEnvoy XUV4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCJimmy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSafariAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSavana 2500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004GMCSonomaFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004IsuzuAscender4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2004OldsmobileBravadaAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletAstroAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletBlazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletExpress 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletExpress 2500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletS104WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003ChevroletTrailblazer EXT4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCEnvoy XL4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCJimmy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSafariAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSavana 1500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSavana 2500AWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003GMCSonoma4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003IsuzuAscender4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2003OldsmobileBravadaAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletAstroAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletBlazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletS104WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletTrailblazer4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002ChevroletTrailblazer EXT4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCEnvoy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCEnvoy XL4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCJimmy4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCSafariAWDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002GMCSonoma4WDFront OuterFor vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension.
2002OldsmobileBravadaAWDFront OuterFor 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:

12471614149467105478-12471614-0

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