Buy OEM 1988 Subaru Part # 22690AA38A. Oxygen Sensor (Rear). Oxygen Sensor A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does

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SENSOR ASSEMBLY-OXYGEN Oxygen Sensor

Fits Legacy, Outback

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.