Bosch Premium Wideband Air/Fuel Ratio Oxygen Sensor

The Bosch Premium Wideband Air/Fuel Ratio Oxygen Sensor (also called a wideband O2 sensor or A/F sensor) monitors the oxygen content in the exhaust stream. It sends a precise signal to the engine control unit, which uses it to fine-tune fuel delivery. Accurate readings help the engine run efficiently, keep emissions low and perform consistently.

Key Features:

• Wideband design measures air/fuel ratio across a broad range, not just near stoichiometric
• Quick response helps the engine control unit make accurate fuel adjustments
• Helps maintain fuel economy, drivability and emissions control
• Built to meet OE-type form, fit and function for dependable performance
• Backed by Bosch, a long-standing original equipment supplier of oxygen sensor technology

A failing oxygen sensor can cause a check engine light, poor fuel economy, rough running and higher emissions. Replacing it with a quality wideband sensor helps restore proper engine management. Select the correct part number for your application from the options listed on this page.