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NationalPart #: 710474
National 710474 Differential Pinion Seal - Rear Outer
99 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, Isuzu, Buick, Avanti, Oldsmobile, and Pontiac, Colorado, Canyon, Trailblazer, Envoy, Ascender, i-290, i-370, Rainier, Trailblazer EXT, Envoy XL, i-280, i-350, Astro, Blazer, Envoy XUV, Jimmy, Safari, II, S10, Sonoma, Bravada, Camaro, and Firebird
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Not what you need? See all Differential Pinion Seal options
Reliable Differential Pinion Seal for Select GM and Isuzu Models
The National 710474 differential pinion seal is engineered to provide a precise fit and durable sealing solution for various Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac vehicles. Designed with polyacrylate material, this oil seal ensures effective protection against leaks and contamination in driveline applications.
- Inside diameter: 1.732 inches (44.000 mm)
- Outside diameter: 2.657 inches (67.500 mm)
- Thickness/width: 0.375 inches (9.530 mm)
- Housing bore diameter: 2.653 inches (67.390 mm)
- Constructed from durable polyacrylate material for enhanced sealing performance
- Part number 710474, part of the 710400 series
Technical Details and Material Specifications
This differential pinion seal features a precise inside diameter of 1.732 inches (44 mm) to fit the shaft snugly, while the outside diameter measures 2.657 inches (67.5 mm) to match the housing bore diameter of 2.653 inches (67.39 mm). The 0.375-inch (9.53 mm) thickness provides a robust sealing surface to prevent oil leakage. Manufactured from polyacrylate, the seal offers resistance to heat, oil, and wear, making it suitable for demanding driveline environments.
Compatible Vehicles and Applications
This National differential pinion seal 710474 is compatible with a range of GM and Isuzu models, including Buick Ascender, Chevrolet Astro, Blazer, Camaro, Colorado, S10, GMC Canyon, Envoy, Jimmy, Sonoma, Trailblazer, and Oldsmobile i-280, i-290, i-350, i-370, as well as Pontiac Firebird and Safari. It is designed specifically for driveline and axle sealing systems, ensuring proper fit and function in these vehicles.
Common Issues Addressed by the Differential Pinion Seal
- Prevents oil leaks from the differential pinion shaft
- Protects driveline components from dirt and contaminants
- Reduces risk of premature wear on differential bearings
- Maintains proper lubrication within the axle assembly
- Helps avoid costly repairs due to seal failure
Installation Notes and Tips
Ensure the housing bore and shaft surfaces 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 original part to maintain proper sealing. Lubricate the seal lip lightly with gear oil to facilitate installation and initial operation.
Quality Assurance and Warranty Information
National's 710474 differential pinion seal is manufactured to meet OEM specifications for fit and durability. The polyacrylate material is selected for its resistance to heat and oil degradation. This part is backed by National's quality standards, providing reliable performance in driveline sealing applications. Warranty coverage details should be confirmed with the product documentation or distributor.
| Brand | National |
|---|---|
| Part Number | 710474 |
| Housing Bore (Inch) | 2.653 |
| Housing Bore (MM) | 67.390 |
| Inside Diameter | 1.732 |
| Inside Diameter | 44.000 |
| Material | Polyacrylate |
| Outside Diameter | 2.657 |
| Outside Diameter | 67.500 |
| Outside Diameter (Inch) | 2.657 |
| Outside Diameter (mm) | 67.500 |
| Part Description | Oil Seal |
| Series | 710400 |
| Shaft (Inch) | 1.732 |
| Shaft (MM) | 44.000 |
| Thickness | 0.375 |
| Thickness | 9.530 |
| Type | 85 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.375 |
| Width (mm) | 9.530 |
This part fits 99 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2013 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2012 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2012 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2011 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2011 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2010 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2010 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2009 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2009 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2009 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2009 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | Isuzu | Ascender | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | Isuzu | i-290 | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2008 | Isuzu | i-370 | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | Buick | Rainier | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | Isuzu | Ascender | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | Isuzu | i-290 | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2007 | Isuzu | i-370 | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Buick | Rainier | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Chevrolet | Trailblazer EXT | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | GMC | Envoy XL | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Isuzu | Ascender | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Isuzu | i-280 | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2006 | Isuzu | i-350 | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | Buick | Rainier | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | Chevrolet | Astro | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2005 | Chevrolet | Blazer | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2005 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | Chevrolet | Trailblazer EXT | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | GMC | Envoy XL | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | GMC | Envoy XUV | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2005 | GMC | Jimmy | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2005 | GMC | Safari | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2005 | Isuzu | Ascender | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | Buick | Rainier | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | Chevrolet | Astro | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2004 | Chevrolet | Blazer | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2004 | Chevrolet | Colorado | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | Chevrolet | S10 | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2004 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | Chevrolet | Trailblazer EXT | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Canyon | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Envoy XL | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Envoy XUV | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Jimmy | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Safari | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2004 | GMC | Sonoma | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2004 | Isuzu | Ascender | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2004 | Oldsmobile | Bravada | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2003 | Chevrolet | Astro | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2003 | Chevrolet | Blazer | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2003 | Chevrolet | S10 | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2003 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2003 | Chevrolet | Trailblazer EXT | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2003 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2003 | GMC | Envoy XL | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2003 | GMC | Jimmy | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2003 | GMC | Safari | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2003 | GMC | Sonoma | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2003 | Isuzu | Ascender | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2003 | Oldsmobile | Bravada | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2002 | Chevrolet | Astro | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | Chevrolet | Blazer | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | Chevrolet | Camaro | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | Chevrolet | S10 | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | Chevrolet | Trailblazer | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2002 | Chevrolet | Trailblazer EXT | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2002 | GMC | Envoy | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2002 | GMC | Envoy XL | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2002 | GMC | Jimmy | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | GMC | Safari | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | GMC | Sonoma | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2002 | Oldsmobile | Bravada | Rear Outer | Manual Transmission Input Shaft Bearing; with 8 inch Ring Gear and AAM Axle. |
| 2002 | Pontiac | Firebird | Rear Outer | Fits models with 7.625 inch Ring Gear and AAM Axle. |
| 2001 | Chevrolet | Astro | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | Chevrolet | Blazer | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | Chevrolet | Camaro | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | Chevrolet | S10 | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | GMC | Jimmy | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | GMC | Safari | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | GMC | Sonoma | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | Oldsmobile | Bravada | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
| 2001 | Pontiac | Firebird | Rear Outer | 2nd Design; with 7.625 (in) Ring Gear; with 0.375 (in) Width; with AAM Axle; 2.657 (in) Outside Diameter |
* 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:
12471523174077104748-12471523-0
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.