***HEAVILY USED/ DIRTY** A-Premium Secondary Air Injection Check Valve, Air Pump Check Control Valve, with Gasket, Compatible with Chevrolet, GMC, Buick, Saab Models - Trailblazer EXT, Envoy XL, Rainier, 9-7x, 4.2L L6 Petrol

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

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• [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 Rainier 2006-2007 L6 4.2L; Compatible with Chevrolet Trailblazer 2006-2009 L6 4.2L, Trailblazer EXT 2006 L6 4.2L; Compatible with GMC Envoy 2006-2009 L6 4.2L, Envoy XL 2006 L6 4.2L; Compatible with Saab 9-7x 2006-2009 L6 4.2L --- with 5 Pins
• [Reference Number]: 911-150, 911150, 12619110
• [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.