Dorman 911-607 Secondary Air Injection Check Valve

The Dorman 911-607 is a passenger side secondary air injection check valve designed as a direct replacement for the original equipment on select Lexus and Toyota vehicles. This emission control component plays a critical role in the secondary air injection system by allowing fresh air into the exhaust stream to help burn unburned hydrocarbons and reduce harmful emissions before they reach the atmosphere.

Key Features:

• Direct replacement design matches the fit and function of the original valve
• Constructed from durable aluminum, brass, and plastic materials for reliable performance
• Features 5-pin electrical connector for proper system integration
• Includes gasket for complete installation
• 8-inch overall length with 7/8-inch inlet and 11/16-inch outlet sizing
• Maximum pressure rating of 4.4 PSI
• Operating temperature range: -40°F to 250°F
• Black finish with natural metal accents

This check valve prevents exhaust gases from flowing backward into the air injection pump while allowing fresh air to enter the exhaust manifold during cold start conditions. When the original valve fails, it can trigger check engine lights and cause emissions test failures. The Dorman 911-607 fully restores functionality with quality materials engineered for long service life.

Replaces OEM Part Number: 25701-38100, 2570138100