Mishimoto 01-10 Chevy Duramax 2500 6.6L 185 & 191F Degrees Racing Thermostat

The Mishimoto Chevrolet Duramax high temperature thermostats activate at a higher temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in colder climates, or have trouble reaching operating temperatures.Activating at a higher temperature means the thermostats will allow the coolant to stay in the engine longer delaying the coolant flowing through the radiator, which allows the engine to warm up sooner.

Additional Information

Engine coolant thermostat designed to regulate coolant flow and maintain optimal operating temperature. Ensures efficient warm-up, prevents overheating, and supports reliable performance with a precise fit.

Application Summary

2006-2009 Chevrolet Express 2500 6.6 Liter 4L60-E, 2006-2009 Chevrolet Express 2500 6.6 Liter 4L80-E, 2006-2009 Chevrolet Express 2500 6.6 Liter 4L85-E, 2010-2012 Chevrolet Express 2500 6.6 Liter 6L90, 2007-2009 Chevrolet Express 3500 6.6 Liter 4L60-E, 2006-2009 Chevrolet Express 3500 6.6 Liter 4L80-E, 2006-2009 Chevrolet Express 3500 6.6 Liter 4L85-E, 2010-2012 Chevrolet Express 3500 6.6 Liter 6L90, 2009 Chevrolet Express 4500 6.6 Liter 4L60-E, 2009 Chevrolet Express 4500 6.6 Liter 4L80-E, 2009 Chevrolet Express 4500 6.6 Liter 4L85-E, 2010-2012 Chevrolet Express 4500 6.6 Liter 6L90, 2004-2012 Chevrolet Silverado 2500 HD 6.6 Liter 1000, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter 1000/M74, 2001-2007 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E, 2002 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E-HD/MN8, 2007-2012 Chevrolet Silverado 2500 HD 6.6 Liter 6L90, 2004-2007 Chevrolet Silverado 2500 HD 6.6 Liter NV4500, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter NV4500/MW3, 2004-2006 Chevrolet Silverado 2500 HD 6.6 Liter S6-650, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter S6-650/ML6, 2004-2007 Chevrolet Silverado 3500 6.6 Liter 1000, 2001-2003 Chevrolet Silverado 3500 6.6 Liter 1000/M74, 2001-2007 Chevrolet Silverado 3500 6.6 Liter 4L80-E, 2004-2007 Chevrolet Silverado 3500 6.6 Liter NV4500, 2001-2003 Chevrolet Silverado 3500 6.6 Liter NV4500/MW3, 2004-2006 Chevrolet Silverado 3500 6.6 Liter S6-650, 2001-2003 Chevrolet Silverado 3500 6.6 Liter S6-650/ML6, 2007-2012 Chevrolet Silverado 3500 HD 6.6 Liter 1000, 2007-2012 Chevrolet Silverado 3500 HD 6.6 Liter 6L90, 2006-2009 GMC Savana 2500 6.6 Liter 4L60-E, 2006-2009 GMC Savana 2500 6.6 Liter 4L80-E, 2006-2009 GMC Savana 2500 6.6 Liter 4L85-E, 2010-2012 GMC Savana 2500 6.6 Liter 6L90, 2006-2009 GMC Savana 3500 6.6 Liter 4L60-E, 2006-2009 GMC Savana 3500 6.6 Liter 4L80-E, 2006-2009 GMC Savana 3500 6.6 Liter 4L85-E, 2010-2012 GMC Savana 3500 6.6 Liter 6L90 ...See Application Guide for Additional Fitments

Part Type

Engine Coolant Thermostat

Product Overview

2006-2009 Chevrolet Express 2500 6.6 Liter 4L60-E, 2006-2009 Chevrolet Express 2500 6.6 Liter 4L80-E, 2006-2009 Chevrolet Express 2500 6.6 Liter 4L85-E, 2010-2012 Chevrolet Express 2500 6.6 Liter 6L90, 2007-2009 Chevrolet Express 3500 6.6 Liter 4L60-E, 2006-2009 Chevrolet Express 3500 6.6 Liter 4L80-E, 2006-2009 Chevrolet Express 3500 6.6 Liter 4L85-E, 2010-2012 Chevrolet Express 3500 6.6 Liter 6L90, 2009 Chevrolet Express 4500 6.6 Liter 4L60-E, 2009 Chevrolet Express 4500 6.6 Liter 4L80-E, 2009 Chevrolet Express 4500 6.6 Liter 4L85-E, 2010-2012 Chevrolet Express 4500 6.6 Liter 6L90, 2004-2012 Chevrolet Silverado 2500 HD 6.6 Liter 1000, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter 1000/M74, 2001-2007 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E, 2002 Chevrolet Silverado 2500 HD 6.6 Liter 4L80-E-HD/MN8, 2007-2012 Chevrolet Silverado 2500 HD 6.6 Liter 6L90, 2004-2007 Chevrolet Silverado 2500 HD 6.6 Liter NV4500, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter NV4500/MW3, 2004-2006 Chevrolet Silverado 2500 HD 6.6 Liter S6-650, 2001-2003 Chevrolet Silverado 2500 HD 6.6 Liter S6-650/ML6, 2004-2007 Chevrolet Silverado 3500 6.6 Liter 1000, 2001-2003 Chevrolet Silverado 3500 6.6 Liter 1000/M74, 2001-2007 Chevrolet Silverado 3500 6.6 Liter 4L80-E, 2004-2007 Chevrolet Silverado 3500 6.6 Liter NV4500, 2001-2003 Chevrolet Silverado 3500 6.6 Liter NV4500/MW3, 2004-2006 Chevrolet Silverado 3500 6.6 Liter S6-650, 2001-2003 Chevrolet Silverado 3500 6.6 Liter S6-650/ML6, 2007-2012 Chevrolet Silverado 3500 HD 6.6 Liter 1000, 2007-2012 Chevrolet Silverado 3500 HD 6.6 Liter 6L90, 2006-2009 GMC Savana 2500 6.6 Liter 4L60-E, 2006-2009 GMC Savana 2500 6.6 Liter 4L80-E, 2006-2009 GMC Savana 2500 6.6 Liter 4L85-E, 2010-2012 GMC Savana 2500 6.6 Liter 6L90, 2006-2009 GMC Savana 3500 6.6 Liter 4L60-E, 2006-2009 GMC Savana 3500 6.6 Liter 4L80-E, 2006-2009 GMC Savana 3500 6.6 Liter 4L85-E, 2010-2012 GMC Savana 3500 6.6 Liter 6L90 ...See Application Guide for Additional Fitments

• Activates at higher temperature allowing engine temperatures to rise
• Fits 2001+ Chevrolet/GMC 6.6L Duramax
• Ideal for colder climates

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Product Details

Reference Information

Thermostats, Mechanical, 185 degree, 191 degree, Standard-flow, Chevy, 6.6L Duramax Diesel, Pair

Mishimoto thermostats are effective in noticeably lowering engine coolant temperatures. These thermostats are built with high-quality wax and are shipped with new rubber gaskets (where applicable) for a good, leak-free seal. They are then digitally calibrated for precise operation. Mishimoto thermostats open up at a slightly lower temperature than OEM or standard thermostats once your engine is fully warmed up. This allows the coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you have a daily driver or a modified and upgraded turbo, Mishimoto thermostats will maintain optimal temperatures to efficiently cool your application.