Buy OEM 1997 Subaru Part # 22690AA501 (22690AA500). Sensor Oxygen. Oxygen Sensor A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause

Oxygen Sensor.

SENSOR ASSEMBLY-OXYGEN Oxygen Sensor

Fits WRX

Oxygen Sensor
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your Subaru to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Subaru genuine parts.