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 Seal

Helps close and prevent coolant from leaking out of your vehicle's cooling system components to maintain the proper engine temperature This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors