Toyota Vios Vela Rear Oxygen Sensor 89465-52380 Air-Fuel Ratio Monitoring Environmental Upgrade

This replacement uses an identical zirconia ceramic sensing element with a stainless steel laser-welded housing, offering high-temperature resistance and better vibration resistance than some aftermarket parts; tested lifespan 50,000–80,000 km. OEM 89465-52380; fits Toyota Vitz/Yaris 1.3L/1.5L (2002-2010). Function: real-time monitoring of air–fuel ratio in exhaust and feeding ECU to correct fuel injection, ensuring catalytic converter efficiency and higher annual emissions test pass rate. Remove the old sensor, use a dedicated socket to turn counterclockwise, avoid wire tension; installation is intermediate; recommended cold engine operation to prevent scalding.