COMPATIBILITY: 4PCS Oxygen O2 Sensor is compatible with Ford F-150 2011-2014 3.7L, Edge 3.5L 3.7L 2011-2014, Explorer 3.5L 2011-2012, Mustang 3.7L 2012, Taurus 3.5L 2013-2015, Mustang 3.7L 2013-2014, Flex 3.5L 2013-2014; compatible with Lincoln MKX 3.7L 2012-2014; compatible with Mazda 6 3.7L 2011-2013, CX-9 3.7L 2011-2015.
FUNCTION: The O2 sensor measures the amount of unburned oxygen in the exhaust gas. It communicates with the vehicle's electronic control unit (ECU) to help determine the correct air-fuel ratio for optimal engine performance, improving vehicle fuel economy, helping the engine run smoothly, reducing emissions and enhancing environmental protection.
QUALITY: Cilipnsi 4PCS Upstream+Downstream Oxygen O2 Sensor is made to exacting scientific standards from high quality materials that are more durable, oxidation and temperature resistant, meet OEM specifications, are direct replacements for OEM parts, and are 100% tested prior to shipment to ensure superior performance and long service life.
NOTICE: Please confirm the compatible model and OE number before purchasing carefully. If there are any quality or inCompatible with issues, please send us a message to help you at any time.