Select year, make and model. You can also add your VIN number if you have it handy.
Welcome back, please login.
Password forgotten? Click here.
Save your vehicles, track your orders and receive special offers & coupons.
OE quality 185* thermostat by Gates for the 6.6 liter Duramax diesel, engine code LB7, LLY, LBZ, LMM, and LML.