Oxygen Sensor 9158718 0855389 09158718 855361 Multi-OEM Fitment

KLP oxygen sensor models 9158718/0855389/09158718/855361, compatible with 5WK91709 interface for generic models including some Chevrolet, Buick, and Opel. Stainless steel housing with a ceramic sensing element; corrosion and high-temperature resistance are stable; tested life comparable to OEM parts. Monitors exhaust oxygen content and feeds back to ECU to adjust air-fuel ratio, ensuring emissions compliance and fuel economy. Replacement difficulty is moderate; use a dedicated socket to remove the old part; avoid pulling on the wiring harness. It is recommended to check the exhaust piping during replacement.