【COMPATIBILITY】This Upstream Downstream Oxygen O2 Sensor Compatible with Toyota Corolla 2011/2012/2013 1.8L L4 North American Built, for Toyota Matrix 2011/2012/2013/2014 1.8L L4
【OE PART NUMBERS】Upstream:234-9112,8946702070,8946774040. Downstream: 234-4305,88975493,8946502330,8946512840
【FEATURES】Improve engine performance, optimize fuel efficiency, improve problems such as high fuel consumption and slow acceleration
【EASY INSTALLATION】Direct replacement without complicated operation steps
【TIPS】Please check the OEM before purchasing. Please check your oxygen sensor position plug wire length