Replace OE Numbers: 234-4445丨22690AA810丨22690AA81A丨22690AA93A丨32010413; Vehicle Specific: Check fitment/pictures/product details page information in the listing for compatibility; Compatible Vehicle Model: Oxygen sensor Compatible with Subaru 2006-2012 Legacy 2.5L H4,Compatible with Subaru 2006-2012 Outback 2.5L H4,Compatible with Subaru 2006-2011 Impreza 2.5L H4,Compatible with Subaru 2006-2010 Forester 2.5L H4,Compatible with Saab 2006 9-2X 2.5L H4 High Performance: The SYKRSS oxygen sensor meets OE standards, and Front/Back/Upstream/Downstream compatibility; is made of stainless steel and high temperature resistant materials and is installed in the vehicle exhaust pipe to accurately detect air mixture and engine combustion conditions, optimizing engine performance and saving fuel consumption Installation Instructions: To avoid burns, please wait for the vehicle exhaust pipe to completely cool down before operating; During the disassembly process, please be very careful not to damage the exhaust pipe and oxygen sensor threaded parts, and use professional disassembly tools Professional Services: 695mm wire harness; Please check the length of the plug and sensor before purchasing to avoid purchasing an unsuitable oxygen sensor; SYKRSS have been deeply involved in the automotive parts industry for many years. If you have any questions during the purchasing process, please feel free to let us know SYKRSS Oxygen O2 Sensor 234-4445 Compatible with Subaru Legacy,Outback 2.5L H4, 32010413 22690AA81A Downstream Replacement Oxygen Sensor Compatible with Subaru Impreza,Forester,1PCS