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NationalPart #: 710547
National 710547 Differential Pinion Seal - 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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Not what you need? See all Differential Pinion Seal options
National 710547 Differential Pinion Seal Overview
The National 710547 differential pinion seal is engineered to provide reliable sealing performance for driveline applications. Designed with precision dimensions and durable nitrile material, this oil seal is compatible with various GM and Isuzu vehicles, including Chevrolet Blazer and GMC Envoy models.
- Inside diameter: 1.521 inches (38.63 mm)
- Outside diameter: 2.669 inches (67.79 mm)
- Flanged outside diameter: 2.874 inches (73.00 mm)
- Thickness/width: 0.445 inches (11.3 mm)
- Material: Nitrile for resistance to oil and wear
- Part number: 710547
Technical Specifications and Design Details
This National differential pinion seal (part number 710547) is part of the 710500 series and features a 75-type design optimized for sealing the pinion shaft in the differential housing bore. The seal’s precise fitment includes a housing bore diameter of 2.661 inches (67.59 mm) and a shaft diameter of 1.521 inches (38.63 mm), ensuring a secure and leak-free installation. Constructed from nitrile, the seal offers durability against oil degradation and mechanical wear, making it suitable for heavy-duty use in driveline systems.
Compatible Vehicles and Applications
This differential pinion seal is compatible with a range of vehicles, including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. It is specifically designed for use in models such as the Chevrolet Blazer, GMC Envoy, Isuzu Ascender, and others like the Trailblazer, Jimmy, and S10. The National 710547 seal is ideal for maintaining proper oil retention and preventing contamination in these driveline systems.
- Prevents oil leaks from the differential pinion shaft
- Protects against dirt and debris ingress
- Maintains proper lubrication within the differential
- Reduces wear on pinion shaft and bearings
- Helps avoid costly driveline repairs
Installation Notes and Tips
When installing the National 710547 differential pinion seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without damaging the flange or sealing lip. Verify the seal’s orientation matches the original part to maintain proper sealing function. Lubricate the seal lip lightly with gear oil before installation to reduce initial wear.
Quality Assurance and Warranty
National manufactures the 710547 differential pinion seal to meet industry standards for durability and performance. Made from high-quality nitrile material, this seal is designed to withstand typical operating conditions in automotive differentials. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects, ensuring confidence in product reliability.
| Brand | National |
|---|---|
| Part Number | 710547 |
| Flanged Outside Diameter (Inch) | 2.874 |
| Flanged Outside Diameter (MM) | 73.000 |
| Housing Bore (Inch) | 2.661 |
| Housing Bore (MM) | 67.590 |
| Inside Diameter | 1.521 |
| Inside Diameter | 38.630 |
| Material | Nitrile |
| Outside Diameter | 2.669 |
| Outside Diameter | 67.790 |
| Outside Diameter (Inch) | 2.669 |
| Outside Diameter (mm) | 67.790 |
| Part Description | Oil Seal |
| Series | 710500 |
| Shaft (Inch) | 1.521 |
| Shaft (MM) | 38.630 |
| Thickness | 0.445 |
| Thickness | 11.300 |
| Type | 75 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.445 |
| Width (mm) | 11.300 |
This part fits 101 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2014 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2014 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2013 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2013 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2012 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2012 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2011 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2011 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2010 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2010 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | Chevrolet | Trailblazer | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | Saab | 9-7x | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2008 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | Chevrolet | Trailblazer | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | Isuzu | Ascender | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | Saab | 9-7x | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2007 | Buick | Rainier | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Chevrolet | Trailblazer | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Isuzu | Ascender | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Saab | 9-7x | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2006 | Buick | Rainier | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Chevrolet | Trailblazer EXT | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | GMC | Envoy XL | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Isuzu | Ascender | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Saab | 9-7x | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2005 | Buick | Rainier | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Astro | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Blazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Express 2500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Trailblazer EXT | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Envoy XL | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Envoy XUV | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Jimmy | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2005 | GMC | Safari | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Savana 2500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Isuzu | Ascender | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Saab | 9-7x | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2004 | Buick | Rainier | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Astro | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Blazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Express 2500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | S10 | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2004 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Trailblazer EXT | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Envoy XL | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Envoy XUV | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Jimmy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Safari | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Savana 2500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Sonoma | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2004 | Isuzu | Ascender | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Oldsmobile | Bravada | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Astro | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Blazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Express 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Express 2500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | S10 | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Trailblazer EXT | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Envoy XL | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Jimmy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Safari | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Savana 1500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Savana 2500 | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Sonoma | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Isuzu | Ascender | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Oldsmobile | Bravada | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Astro | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Blazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | S10 | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Trailblazer | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Trailblazer EXT | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Envoy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Envoy XL | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Jimmy | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Safari | AWD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Sonoma | 4WD | Front Outer | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Oldsmobile | Bravada | AWD | Front Outer | For 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.