Bosch Oxygen Sensor 4-Wire Heated

Bosch 4-wire heated oxygen sensors (also called O2 sensors or lambda sensors) monitor the oxygen content in your engine's exhaust. They send that data to the engine control unit so it can fine-tune the air-fuel mixture. Accurate readings help the engine run efficiently, keep emissions low and maintain good fuel economy.

Key Features:

• Heated sensing element: an integrated heater brings the sensor to operating temperature quickly. This allows closed-loop fuel control sooner after a cold start.
• 4-wire design: the connection includes signal and heater circuits, which supports stable, accurate readings.
• Quality construction: Bosch is a leading original equipment supplier and builds these sensors for dependable performance and durability in the exhaust stream.
• Plug-and-play connectors: many applications use a direct-fit connector, which keeps installation simple.
• Range of applications: the line includes sensors for upstream and post-catalytic converter positions, as well as OE replacement and sport-oriented designs.

A worn or failing oxygen sensor can cause poor fuel economy, rough running, a check engine light and higher emissions. Replacing it with a Bosch heated oxygen sensor helps restore proper engine management and emissions system performance.