Walker Products Air Fuel Ratio Sensor

Walker Products Air Fuel Ratio (AFR) Sensors, also called wideband oxygen sensors or A/F sensors, measure the oxygen content of the exhaust gas. The engine control system uses this reading to monitor combustion efficiency and keep the air-fuel mixture on target. This helps the engine run efficiently, supports fuel economy and helps lower emissions.

Key Features:

• OE-based design, manufactured to meet or exceed original equipment specifications and test requirements
• Provides oxygen level feedback to the engine control system for dependable performance and efficiency
• Heated sensor design with a 4-wire connection
• Wideband sensing for precise air-fuel ratio monitoring
• Direct-fit replacement designed to match OE form, fit and function
• Tested for durability under demanding exhaust conditions

Walker Products is a long-established name in exhaust and emissions components. Each sensor in this line is built for dependable, long-lasting service. Replacing a worn AFR sensor can help restore proper engine management, throttle response and fuel economy, and can help clear related check engine light codes.