GM Air Injection Valve ACDelco 12632977 Secondary Air Injection Check Valve Ignition Engine Fuel Management Part This original equipment valve will provide the same performance, durability, and service life you expect from General Motors. ACDelco® W0133-1953549-ACD - Genuine GM Parts™ Secondary Air Injection Check Valve Country of Origin: Japan Premium GM Driver Side Secondary Air Injection Shut-Off and Check Valve (Part # 12633749) Invest in the best for your vehicle with GM Parts Driver Side Secondary Air Injection Shut-Off and Check Valve (Part # 12633749). Crafted to meet OEM standards, this part guarantees optimal performance. Key Features Precision Engineering: Ensures exact fit for GM vehicles. Reliable Performance: Made with... ACDelco GM Original Equipment Secondary Air Injection Bypass Valve is a GM-recommended replacement component for one or more of the following vehicle systems: ignition, and/or engine fuel management. ACDelco Car & Truck Air Bypass Valves for sale International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.