[Important Role]: The secondary air injection check valve plays an important role in reducing vehicle emissions. It promotes combustion of unburned fuel by injecting air into the exhaust pipe when the engine is started, thus reducing harmful emissions, especially during cold starts. A failed check valve can cause check engine light to illuminate and exhaust emissions to increase. If you notice any of these symptoms above, you need to replace your air check valve.
[Vehicle Fitment]: Compatible with Buick Lucerne 2006-2011 V8 4.6L; Compatible with Cadillac DTS 2006-2011 V8 4.6L --- with 5 Pins
[Reference Number]: 911-340, 911340, 12619111
[OE Design]: This air check valve is manufactured to the OEM specification to provide factory-fresh appearance and direct-fit. Installation is easy and doesn't take much time or require special tools. No more check engine light and better.
[Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted secondary air injection check valve. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind.