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12637105 Genuine GM Water Pump Assembly For Chevrolet Silverado 2500 HD 6.6L
12637105 Genuine GM Water Pump Assembly For Chevrolet Silverado 2500 HD 6.6L

12637105 Genuine GM Water Pump Assembly For Chevrolet Silverado 2500 HD 6.6L

P/N: 12637105 Manufactured by: GM
$369.00 - $369.00
$369.00
$369.00 - $369.00
$369.00
4 in Stock
Condition: New
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Description

The 12637105 water pump assembly is a Genuine GM engine cooling component designed to circulate coolant through the engine block and radiator to maintain proper operating temperature. It is engineered for GM 6.6L V8 diesel engines used in heavy-duty Chevrolet and GMC trucks and vans. 

Vehicle Compatibility

Year Vehicle Engine Trims
2016 Chevrolet Express 2500 6.6L V8 Diesel Base
2016 Chevrolet Express 3500 6.6L V8 Diesel Base, LS, LT
2016 Chevrolet Express 4500 6.6L V8 Diesel Base
2016 Chevrolet Silverado 2500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2016 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2016 GMC Savana 2500 6.6L V8 Diesel Base
2016 GMC Savana 3500 6.6L V8 Diesel Base, LS, LT
2016 GMC Savana 4500 6.6L V8 Diesel Base
2016 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2016 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2015 Chevrolet Express 2500 6.6L V8 Diesel Base
2015 Chevrolet Express 3500 6.6L V8 Diesel Base, LS, LT
2015 Chevrolet Express 4500 6.6L V8 Diesel Base
2015 Chevrolet Silverado 2500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2015 Chevrolet Silverado 3500 HD 6.6L V8 Diesel High Country, LT, LTZ, WT
2015 GMC Savana 2500 6.6L V8 Diesel Base
2015 GMC Savana 3500 6.6L V8 Diesel Base, LS, LT
2015 GMC Savana 4500 6.6L V8 Diesel Base
2015 GMC Sierra 2500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2015 GMC Sierra 3500 HD 6.6L V8 Diesel Base, Denali, SLE, SLT
2014 Chevrolet Express 2500 6.6L V8 Diesel Base
2014 Chevrolet Express 3500 6.6L V8 Diesel Base, LS, LT
2014 Chevrolet Express 4500 6.6L V8 Diesel Base
2014 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2014 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2014 GMC Savana 2500 6.6L V8 Diesel Base
2014 GMC Savana 3500 6.6L V8 Diesel Base, LS, LT
2014 GMC Savana 4500 6.6L V8 Diesel Base
2014 GMC Sierra 2500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2014 GMC Sierra 3500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2013 Chevrolet Express 2500 6.6L V8 Diesel Base
2013 Chevrolet Express 3500 6.6L V8 Diesel Base, LS, LT
2013 Chevrolet Express 4500 6.6L V8 Diesel Base
2013 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2013 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2013 GMC Savana 2500 6.6L V8 Diesel Base
2013 GMC Savana 3500 6.6L V8 Diesel Base, LS, LT
2013 GMC Savana 4500 6.6L V8 Diesel Base
2013 GMC Sierra 2500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2013 GMC Sierra 3500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2012 Chevrolet Express 2500 6.6L V8 Diesel Base
2012 Chevrolet Express 3500 6.6L V8 Diesel Base, LS, LT
2012 Chevrolet Express 4500 6.6L V8 Diesel Base
2012 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2012 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2012 GMC Savana 2500 6.6L V8 Diesel Base
2012 GMC Savana 3500 6.6L V8 Diesel Base, LS, LT
2012 GMC Savana 4500 6.6L V8 Diesel Base
2012 GMC Sierra 2500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2012 GMC Sierra 3500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2011 Chevrolet Express 2500 6.6L V8 Diesel Base
2011 Chevrolet Express 3500 6.6L V8 Diesel Base, LS, LT
2011 Chevrolet Express 4500 6.6L V8 Diesel Base
2011 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2011 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2011 GMC Savana 2500 6.6L V8 Diesel Base
2011 GMC Savana 3500 6.6L V8 Diesel Base, LS, LT
2011 GMC Savana 4500 6.6L V8 Diesel Base
2011 GMC Sierra 2500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2011 GMC Sierra 3500 HD 6.6L V8 Diesel Denali, SLE, SLT, WT
2010 Chevrolet Express 2500 6.6L V8 Diesel Base
2010 Chevrolet Express 3500 6.6L V8 Diesel Base
2010 Chevrolet Express 4500 6.6L V8 Diesel Base
2010 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2010 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2010 GMC Savana 2500 6.6L V8 Diesel Base
2010 GMC Savana 3500 6.6L V8 Diesel Base
2010 GMC Savana 4500 6.6L V8 Diesel Base
2010 GMC Sierra 2500 HD 6.6L V8 Diesel SLE, SLT, WT
2010 GMC Sierra 3500 HD 6.6L V8 Diesel SLE, SLT, WT
2009 Chevrolet Express 2500 6.6L V8 Diesel Base
2009 Chevrolet Express 3500 6.6L V8 Diesel Base
2009 Chevrolet Express 4500 6.6L V8 Diesel Base
2009 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2009 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2009 GMC Savana 2500 6.6L V8 Diesel Base
2009 GMC Savana 3500 6.6L V8 Diesel Base
2009 GMC Savana 4500 6.6L V8 Diesel Base
2009 GMC Sierra 2500 HD 6.6L V8 Diesel SLE, SLT, WT
2009 GMC Sierra 3500 HD 6.6L V8 Diesel SLE, SLT, WT
2008 Chevrolet Express 2500 6.6L V8 Diesel Base
2008 Chevrolet Express 3500 6.6L V8 Diesel Base
2008 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2008 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2008 GMC Savana 2500 6.6L V8 Diesel Base
2008 GMC Savana 3500 6.6L V8 Diesel Base
2008 GMC Sierra 2500 HD 6.6L V8 Diesel SLE, SLT, WT
2008 GMC Sierra 3500 HD 6.6L V8 Diesel SLE, SLT, WT
2007 Chevrolet Express 2500 6.6L V8 Diesel Base
2007 Chevrolet Express 3500 6.6L V8 Diesel Base
2007 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LT, LTZ, WT
2007 Chevrolet Silverado 2500 HD Classic 6.6L V8 Diesel LS, LT, WT
2007 Chevrolet Silverado 3500 Classic 6.6L V8 Diesel LS, LT, WT
2007 Chevrolet Silverado 3500 HD 6.6L V8 Diesel LT, LTZ, WT
2007 GMC Savana 2500 6.6L V8 Diesel Base
2007 GMC Savana 3500 6.6L V8 Diesel Base
2007 GMC Sierra 2500 HD 6.6L V8 Diesel SLE, SLT, WT
2007 GMC Sierra 2500 HD Classic 6.6L V8 Diesel SL, SLE, SLT, WT
2007 GMC Sierra 3500 Classic 6.6L V8 Diesel SL, SLE, SLT, WT
2007 GMC Sierra 3500 HD 6.6L V8 Diesel SLE, SLT, WT
2006 Chevrolet Express 2500 6.6L V8 Diesel Base, LS, LT
2006 Chevrolet Express 3500 6.6L V8 Diesel Base
2006 Chevrolet Silverado 2500 HD 6.6L V8 Diesel LS, LT, WT
2006 Chevrolet Silverado 3500 6.6L V8 Diesel LS, LT, WT
2006 GMC Savana 2500 6.6L V8 Diesel Base
2006 GMC Savana 3500 6.6L V8 Diesel Base
2006 GMC Sierra 2500 HD 6.6L V8 Diesel SL, SLE, SLT, WT
2006 GMC Sierra 3500 6.6L V8 Diesel SL, SLE, SLT, WT


General Specifications

Condition New
Part Number 12637105
Brand GM
Part Type Water Pump Assembly
Years 2006–2016
Fitment Type Direct Replacement
Dimensions 10.8 x 8.5 x 6.3 inches
Item Weight 10.90 lb
Engine 6.6L V8 Diesel


Product Features

The 12637105 water pump assembly is built to match factory performance and installation requirements:

  • Designed for GM 6.6L V8 Duramax diesel cooling systems
  • Circulates coolant through engine block and radiator to maintain operating temperature
  • Built to match factory mounting locations and coolant passages
  • Engineered for heavy-duty truck and commercial van applications
  • Maintains stable coolant flow under towing and high-load operation
  • Manufactured to GM cooling system specifications for proper installation

Application Notes

The 12637105 water pump assembly is intended for GM vehicles equipped with the 6.6L V8 Duramax diesel engine listed above and installs as part of the engine cooling system.

Always verify part number, engine configuration, and cooling system components before installation.

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