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NationalPart #: 710623

National 710623 Automatic Transmission Oil Pump Seal - Front
81 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, and Hummer, H1, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD
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Not what you need? See all Automatic Transmission Oil Pump Seal options
National 710623 Automatic Transmission Oil Pump Seal - Front
| Brand | National |
|---|---|
| Part Number | 710623 |
| Inside Diameter | 2.294 |
| Inside Diameter | 58.270 |
| Thickness | 0.352 |
| Thickness | 8.950 |
| Outside Diameter | 3.236 |
| Outside Diameter | 82.200 |
| Helix Type | Clockwise-spiral lip design |
| Housing Bore (Inch) | 3.228 |
| Housing Bore (MM) | 82.000 |
| Material | Fluoro-elastomer |
| Outside Diameter (Inch) | 3.236 |
| Outside Diameter (mm) | 82.200 |
| Part Description | Oil seal |
| Sealing Material | Fluoro-elastomer |
| Series | 710600 |
| Shaft (Inch) | 2.294 |
| Shaft (MM) | 58.270 |
| Type | 32 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.352 |
| Width (mm) | 8.950 |
This part fits 81 vehicles. Search below:
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2019 | Chevrolet | Silverado 2500 HD | Automatic | Front | |
| 2019 | Chevrolet | Silverado 3500 HD | Automatic | Front | |
| 2019 | GMC | Sierra 2500 HD | Automatic | Front | |
| 2019 | GMC | Sierra 3500 HD | Automatic | Front | |
| 2018 | Chevrolet | Silverado 2500 HD | Automatic | Front | |
| 2018 | Chevrolet | Silverado 3500 HD | Automatic | Front | |
| 2018 | GMC | Sierra 2500 HD | Automatic | Front | |
| 2018 | GMC | Sierra 3500 HD | Automatic | Front | |
| 2017 | Chevrolet | Silverado 2500 HD | Automatic | Front | |
| 2017 | Chevrolet | Silverado 3500 HD | Automatic | Front | |
| 2017 | GMC | Sierra 2500 HD | Automatic | Front | |
| 2017 | GMC | Sierra 3500 HD | Automatic | Front | |
| 2016 | Chevrolet | Silverado 2500 HD | Automatic | Front | |
| 2016 | Chevrolet | Silverado 3500 HD | Automatic | Front | |
| 2016 | GMC | Sierra 2500 HD | Automatic | Front | |
| 2016 | GMC | Sierra 3500 HD | Automatic | Front | |
| 2015 | Chevrolet | Silverado 2500 HD | Automatic | Front | |
| 2015 | Chevrolet | Silverado 3500 HD | Automatic | Front | |
| 2015 | GMC | Sierra 2500 HD | Automatic | Front | |
| 2015 | GMC | Sierra 3500 HD | Automatic | Front | |
| 2014 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2014 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2014 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2014 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2013 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2013 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2013 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2013 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2012 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2012 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2012 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2012 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2011 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2011 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2011 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2011 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2010 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2010 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2010 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2010 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2009 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2009 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2009 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2009 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2008 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2008 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2008 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2008 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2007 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2007 | Chevrolet | Silverado 2500 HD Classic | Automatic | Front | with Allison 1000 Transmission |
| 2007 | Chevrolet | Silverado 3500 Classic | Automatic | Front | with Allison 1000 Transmission |
| 2007 | Chevrolet | Silverado 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2007 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2007 | GMC | Sierra 2500 HD Classic | Automatic | Front | with Allison 1000 Transmission |
| 2007 | GMC | Sierra 3500 Classic | Automatic | Front | with Allison 1000 Transmission |
| 2007 | GMC | Sierra 3500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2006 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2006 | Chevrolet | Silverado 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2006 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2006 | GMC | Sierra 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2006 | Hummer | H1 | Automatic | Front | |
| 2005 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2005 | Chevrolet | Silverado 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2005 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2005 | GMC | Sierra 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2004 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2004 | Chevrolet | Silverado 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2004 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2004 | GMC | Sierra 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2003 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2003 | Chevrolet | Silverado 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2003 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2003 | GMC | Sierra 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2002 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2002 | Chevrolet | Silverado 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2002 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2002 | GMC | Sierra 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2001 | Chevrolet | Silverado 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2001 | Chevrolet | Silverado 3500 | Automatic | Front | with Allison 1000 Transmission |
| 2001 | GMC | Sierra 2500 HD | Automatic | Front | with Allison 1000 Transmission |
| 2001 | GMC | Sierra 3500 | Automatic | Front | with Allison 1000 Transmission |
* 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:
29536299295403092954537629546682710623AT122646B37132
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.