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Dayco DP1226 Engine Water Pump
Reliable Engine Water Pump for Chevrolet and GMC Trucks
The Dayco DP1226 engine water pump is designed to maintain optimal engine temperature for heavy-duty Chevrolet and GMC trucks. Engineered for models like the Silverado 2500 HD and Sierra 3500, this water pump ensures consistent coolant flow and reliable performance under demanding conditions.
- Compatible with Chevrolet Express 2500, Express 3500, GMC Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models
- Durable construction for long-lasting engine cooling
- Precision fit for direct replacement without modification
- Maintains efficient coolant circulation to prevent overheating
- Part number DP1226 for easy identification and ordering
Product Details and Compatibility
The Dayco DP1226 engine water pump is specifically designed for use in Chevrolet and GMC heavy-duty trucks, including the Express 2500 and 3500 series, Savana 2500 and 3500, as well as the Sierra and Silverado 2500 and 3500 HD models. This pump is engineered to meet or exceed OEM specifications, providing a reliable solution for maintaining engine temperature and preventing overheating. Its precise fitment ensures straightforward installation and compatibility with the vehicle’s cooling system.
Common Applications and Problem Resolution
This engine water pump is used to circulate coolant through the engine block and radiator, helping to regulate engine temperature. It addresses several common issues, including:
- Engine overheating due to coolant circulation failure
- Coolant leaks from worn or damaged water pump seals
- Reduced engine performance caused by inefficient cooling
- Noise or vibration from a failing water pump bearing
- Premature engine wear from inadequate temperature control
Installation Notes and Tips
When installing the Dayco DP1226 water pump, ensure the cooling system is fully drained before removal of the old pump. Clean the mounting surface thoroughly to prevent leaks and verify that all gasket surfaces are intact. Use the correct torque specifications for mounting bolts to avoid damage. After installation, refill the cooling system with the appropriate coolant and bleed air pockets to maintain system efficiency.
Quality Assurance and Warranty
Dayco manufactures the DP1226 engine water pump to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Dayco typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.
This part fits 92 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2016 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2016 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | w/o Back Housing |
| 2016 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/o Back Housing |
| 2016 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2016 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2016 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2016 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2015 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2015 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2015 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | w/o Back Housing |
| 2015 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | w/o Back Housing |
| 2015 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2015 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2015 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2015 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2014 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2013 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2012 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2011 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2010 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2009 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2008 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | Chevrolet | Silverado 3500 Classic | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | GMC | Sierra 2500 HD Classic | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | GMC | Sierra 3500 Classic | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2007 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | GMC | Savana 2500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | GMC | Savana 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
| 2006 | GMC | Sierra 3500 | 6.6L | V8 | N/A | Serpentine Belt Driven; w/o Back Housing |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.