For Subaru Forester Sg9 2002-2007 Lambda Sensing Unit Oxygen O2 Sensor Vehicle Component 22690-AA420

Compatibility：For Forester Sg9 2002 2003 2004 2005 2006 2007 Features: This oxygen sensor reaches operating temperature rapidly, shortening the time taken to enter closed-loop control after start-up and reducing fuel consumption and emissions during the cold start stage. Function: The oxygen sensor monitors changes in exhaust oxygen content in real time. It responds swiftly to changes in engine operating conditions, helping to adjust fuel injection promptly and maintain smooth engine function. Please note: Before purchasing, please check that the make, model, year and engine type of your vehicle match those listed, to avoid installation failures due to incompatible specifications. After-sales service: Should you encounter any issues whilst using the product, please let us know and we will provide a solution without delay.