Subaru Oxygen Sensor 22641-AA211 234-9120 Universal Air-Fuel Ratio Sensor, Durable and Reliable

Subaru oxygen sensor 22641-AA211 and 234-9120 universal air-fuel ratio sensor; uses high-temperature ceramic elements and double stainless steel housing; robust welding, resistant to heat shocks and chemical corrosion; measured lifespan 80,000-100,000 km. Fits Forester, Outback, Liberty (2.5L and 3.6L). Real-time monitoring of air-fuel ratio and feedback to ECU to adjust fueling, improving efficiency and meeting emissions. Install with a special socket, protect the ceramic tip, torques recommended 35-40 Nm.