This high-quality new oxygen sensor with part number F01R00C114 is professionally compatible with Changan vehicles. It precisely monitors oxygen concentration in exhaust gas and feeds real-time data to the engine control unit. It helps optimize air-fuel ratio, improve combustion efficiency, cut fuel waste and reduce harmful emissions. With fine craftsmanship and stable performance, it comes with a 1-year warranty, being a perfect aftermarket replacement for old or faulty sensors.