Buy 2007 Gmc Sierra 2500 HD WT Extended Cab Pickup 6.6L Duramax V8 DIESEL A/T RWD Engine Coolant - OEM Gmc Part # 97383685

Thermostat. Housing.
Engine Coolant Housing where a Thermostat is used but not included. Assembly - Engine Cooling. hsng. Engine Coolant. Inlet Assembly. Water Neck.

Engine Coolant Thermostat Housing

Fits Express 2500, Express 3500, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL. Express, Savana; 6.6L Diesel; Housing; Option 2.
Engine Coolant Thermostat Housing - Repair or Replace
A failed thermostat housing will likely result in a cooling system leak, or will cause the engine in your 2007 GMC Sierra 2500 HD to overheat. Consider replacing your engine coolant thermostat or having our staff of expert techs handle it for you.