This Walker O2 Oxygen Sensor is fitted to the exhaust system of your vehicle. It is the rear, or downstream, sensor located after the catalytic converter. Its primary function is to measure the amount of oxygen in the exhaust gases after they have been treated by the catalytic converter. This information is sent to the vehicle's engine control unit (ECU) to monitor the efficiency of the converter.
A replacement is necessary when the original sensor fails or becomes contaminated, leading to inaccurate readings. A faulty rear O2 sensor will typically trigger a check engine light and can cause your vehicle to fail an emissions test.
2006 onwards models have 4 sensors, and the 2 upper ones were also changed after 2006. So please check the pictures of the plugs in the photo before purchasing. The earlier plugs are 4 pin wide. the later are 2 rows of 2 pins.
This part has been designed to fit
Please check vehicle fitment to confirm compatibility with your vehicle. Please contact us with your VIN details if you require further assistance to confirm fitment.
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today, Walker is one of the largest privately-owned manufacturers of fuel system components and engine sensors, committed to delivering products built to meet or exceed OEM standards.
