Toyota Corolla/Century/Lexus Rear Oxygen Sensor 89465-48130 OEM Replacement

If your vehicle shows abnormal fuel consumption, check engine light on, or tailpipe emissions fail, this usually means the rear oxygen sensor has aged or failed. This sensor monitors the oxygen content after the catalytic converter and feeds signals to the ECU to precisely adjust the air-fuel ratio, ensuring efficient operation and compliant emissions. This is an OEM replacement part, OEM number 89465-48130, fits Toyota Corolla, Cruiser, and some Lexus models. When installing, be sure to operate in a cold engine state to avoid scalding, use a dedicated socket to remove to prevent thread damage; after installation, clear fault codes and road-test to ensure sensor signal is normal.