Mishimoto High-Temp Performance Thermostat (Set of Two) GM Duramax 2001-2013

Mishimoto High Temperature Thermostats GM Silverado/Sierra Duramax 6.6L 2001-2013

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.