Buy OEM 1997 GENERAL MOTORS Part # 12559850. Oxygen Sensor (Rear, Lower). Oxygen Sensor - Repair or Replace A failed Oxygen Sensor will often have no noticeable symptoms beyond a

Sensor. Oxygen.
Oxygen Sensor. Heated (O2). Ft. Snsr.

Oxygen Sensor

Oxygen Sensor - Repair or Replace
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your 1997 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.