GM Genuine Parts 21210000 Secondary Air Injection Shut-Off and Check Valve
An ACDelco GM Original Equipment Secondary Air Injection Shut-Off Valve regulates the flow of secondary air into the exhaust system, and is a GM-recommended replacement for your vehicle’s original component. This original equipment secondary air injection shut-off valve has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
