Toyota Vios Corolla Front Oxygen Sensor 89467-0D040 Dual Part Numbers Optional

This replacement uses an identical zirconia ceramic sensing element and high-temperature stainless steel housing; detection accuracy in air-fuel ratio monitoring can reach over 95% of OEM; lab accelerated aging tests show durability not less than OEM in normal use. OEM number 89467-0D040; fits Toyota Vios and Corolla 1.5L/1.8L engines; dual numbers available for inventory management. Function: real-time monitoring of oxygen in exhaust and reporting to the ECU to adjust injector pulse width and ensure combustion efficiency. Replacement difficulty medium; use a special socket to remove old sensor; avoid thread stripping; perform with the engine cold to prevent burns.