Mishimoto 01-10 Chevy Duramax 2500 6.6L 174 & 180F Degrees Racing Thermostat

The Mishimoto Chevrolet Duramax low temperature thermostats activate at a lower temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in warmer climates, or use their trucks under heavy load or strenuous driving conditions.Activating at a lower temperature means coolant will begin flowing through the system and allow for cooler temperatures. Mishimoto Chevrolet/GMC 6.6L Duramax Engine Low Temperature Thermostats (set of 2) MMTS-CHV-01DL 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