ACDelco 90304535 GM Original Equipment Power Brake Booster Vacuum Check Valve

The ACDelco GM Original Equipment Power Brake Booster Check Valve functions as a one-way valve that ensures air does not enter the vacuum booster when the engine is turned off or if there is a leak in the vacuum hose, and is a GM-recommended replacement for your vehicle's original components. This power brake booster check valve has been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.