Dorman 911-004 Secondary Air Injection Check Valve

Reliable Secondary Air Injection Check Valve for GM Vehicles

The Dorman 911-004 Secondary Air Injection Check Valve is designed to maintain proper air flow in the emission control system of select Buick, Chevrolet, Oldsmobile, and Pontiac models. Engineered with durable metal construction and a chrome finish, this valve ensures consistent performance within a wide temperature range.

• Constructed from durable metal with a chrome finish for corrosion resistance
• Wafer-type valve design for efficient air flow control
• Inlet size: 0.63 inches; outlet size: 0.78 inches for precise fitment
• Includes valve, gasket, and mounting hardware for complete installation
• Operates reliably within a temperature range of -20 to 300 degrees Celsius

Product Details and Specifications

The Dorman 911-004 features a wafer-style secondary air injection check valve that prevents exhaust gases from flowing back into the air injection system. Its metal construction with a chrome finish provides durability and resistance to heat and corrosion, essential for maintaining emission control efficiency. The valve’s inlet and outlet sizes (0.63 in and 0.78 in respectively) are designed to match OEM specifications, ensuring compatibility and proper sealing. This part is supplied with a gasket and mounting hardware to facilitate a secure and straightforward installation.

Compatible Vehicles and Applications

This secondary air injection check valve is compatible with a range of GM vehicles, including Buick models like LeSabre and Park Avenue, Chevrolet models such as Camaro and Malibu, Oldsmobile Cutlass and Silhouette, and Pontiac Firebird and Grand Prix. It is suitable for use in emission control systems on these vehicles to help maintain regulatory compliance and engine performance.

• Prevents backflow in the secondary air injection system
• Helps reduce harmful emissions by supporting proper air injection
• Addresses issues like check engine light related to air injection faults
• Resolves symptoms of rough idling or poor engine performance linked to valve failure
• Mitigates exhaust odor caused by malfunctioning air injection components

Installation Notes and Tips

When installing the Dorman 911-004 valve, ensure the engine is cool to avoid injury. Use the included gasket and mounting hardware to secure the valve properly, preventing leaks. Verify the inlet and outlet connections match the vehicle’s air injection system tubing. It is recommended to inspect related hoses and components for wear or damage during installation to maintain system integrity.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance in emission control applications. The 911-004 Secondary Air Injection Check Valve undergoes rigorous quality testing to ensure durability and fitment accuracy. Please refer to Dorman’s warranty policy for specific coverage details.