Bosch stopped making the one with the connector already on it so you cut the wire on your old oxygen sensor and splice it onto this unit - connector supplied. This is the single wire version that...

Subaru Oxygen Sensor (Denso 234-9015). OE number 22641AA280. Fits 03-06 Subaru 2.5L engines. Forester. Baja. 2.5L, 2003-04. 2.5L, front, all. Air-Fuel Ratio Sensor. 2.5L, 2003, air, fuel ratio. 2.5L,...

Plug comes complete with pins . Fits Subaru O2 Sensor Plug for 22690AA350 Ref ID: 031F211

Subaru upstream Oxygen Sensor Denso #234-5003 OE part number 22791AA00A Fits 99-2003 2.5L engines. Please check the number on your sensor before ordering. Ref ID: 22791AA00A

Subaru downstream oxygen sensor Denso #234-4132 OE part number is 22690AA73A. Fits 00-2006 2.5L Subaru engines, as well as some 99 2.2L and 2.5L engines. Please check the number on your sensor before...