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Your cart is empty.An ACDelco GM Original Equipment Secondary Air Injection Check Valve prevents exhaust gases from flowing back through the air injection system, and is a GM-recommended replacement for your vehicle’s original component. This original equipment secondary air injection check valve has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
D&L Rocker
June 16, 2025
fit 2005 GMC Envoy 4.2L, great price.
Chris Brewer
May 12, 2025
Installed in under 30 minutes. Not sure if it took care of the issue, but the vehicle runs as it should.
James Walker
March 16, 2025
Car was not idling right and gas mileage was bad, so I looked into possible issues and found this to be the problem.
Customer
March 12, 2025
Was a rebox . Works flawlessly
Brandon
March 3, 2025
I installed this part on my 2005 GMC envoy I6. This is an extremely easy install that the dealer would love to charge you in upwards of $400 to do. This is the second time this part has failed on me, but the first time it was covered under warranty. I would have to say the part is a piece of junk from that perspective, but this part is a direct replacement and cured my check engine light issue. Don't forget to buy the gasket, it doesn't come with one!
S.Schoenfelder
November 12, 2024
I replaced this on my 2005 Chevy Trailblazer with the I6 engine. It was simple and fits just like the factory original. It is very easy to install if you have a repair manual ( I have the Haynes version). It is also half the price of what you would buy it for at your Chevrolet dealer. It is also recommended that you replace the air pump (ACDelco 215-454, also available on Amazon). You will also need the gasket (ACDelco 219-351) as it is not included with the valve. Great product!
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