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. Mishimoto Chevrolet/GMC 6.6L Duramax High Temperature Thermostats (set of 2) MMTS-CHV-01DH 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