The Genuine GM 97241129 Engine Coolant Thermostat Front Duramax 6.6L is a high-quality ACDelco thermostat designed for bolt-on mounting. It comes with a 1-year manufacturer warranty and is made of durable metal material. This thermostat is specifically designed for the Duramax 6.6L engine and has been tested for reliability. With the OE/OEM part number 97241129, this product ensures a perfect fit and optimal performance for your vehicle's cooling system.