Dorman 911-169 Secondary Air Injection Check Valve - Left

Reliable Secondary Air Injection Check Valve for Subaru Vehicles

The Dorman 911-169 Secondary Air Injection Check Valve is engineered to support the emission control system of select Subaru models. Designed with durable cast aluminum and a reed valve mechanism, this component ensures proper air flow and helps maintain emission standards for Subaru Forester, Impreza, and WRX STI vehicles.

• Constructed from cast aluminum for durability and corrosion resistance
• Black and silver finish for enhanced protection and longevity
• Inlet size of 1 inch and outlet size of 0.5 inch for precise fitment
• Maximum pressure rating of 15 psi suitable for emission control systems
• Reed valve type designed for efficient secondary air injection flow
• Operates reliably within a temperature range of -40°C to 125°C
• Compatible with Subaru Forester, Impreza, and WRX STI models

Product Details and Specifications

The Dorman 911-169 secondary air injection check valve is a critical component in the emission control system, preventing exhaust gases from flowing back into the air injection system. Its cast aluminum construction offers strength and resistance to heat and corrosion, while the black and silver finish adds an extra layer of protection. The valve features a 1-inch inlet and a 0.5-inch outlet, designed to fit precisely within the secondary air injection system of Subaru Forester, Impreza, and WRX STI models. The reed valve design ensures reliable one-way airflow, maintaining system efficiency under pressures up to 15 psi and temperatures ranging from -40°C to 125°C.

Purpose and Common Issues Addressed

• Prevents backflow of exhaust gases into the secondary air injection system
• Helps reduce harmful emissions by supporting proper air injection
• Resolves check valve failure symptoms such as rough idling or failed emissions tests
• Addresses secondary air injection system leaks or blockages
• Improves overall engine performance related to emission control

Installation Notes and Tips

• Ensure compatibility with Subaru Forester, Impreza, or WRX STI before installation
• Inspect the surrounding air injection system components for wear or damage
• Use appropriate tools to avoid damaging the valve or connecting hoses
• Verify proper orientation of the reed valve during installation for correct airflow
• Test the system after installation to confirm proper operation and absence of leaks

Quality Assurance and Warranty

Dorman manufactures the 911-169 secondary air injection check valve to meet or exceed OEM standards for fit and function. The cast aluminum material and precise engineering contribute to long service life under normal operating conditions. While specific warranty details may vary, Dorman typically offers coverage against defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.