May be made from fiber or a rubberized composite material This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Thermostat Housing

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

Thermostat

Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature