2x Oxygen O2 Sensors Upstream+Downstream & 2 for Volvo S60 2006-2009 2.4L 2.5L

Oxygen sensor. Fits the following 2006-2009 Volvo Years 1x Oxygen Sensor + 1x Air Fuel Ratio oxygen sensor. It is positioned in the exhaust pipe and can detect the ratio of air and gasoline. 3-Pretested, precise and high quality oxygen sensor.