Shop 1998 Buick Century Oxygen Sensor (Rear, Lower). 3.4 LITER, at converter. 3.5 LITER. Equinox LITER, EMISSION - OEM Buick Part # 12608693

Sensor. Oxygen.
Oxygen Sensor. Assembly - Heated (O2) (POSN 2). Ft. Snsr.

Oxygen Sensor

Fits Equinox, Torrent, Vue

3.4 LITER, at converter. 3.5 LITER. Equinox, Torrent; 3.4L; At Converter. Vue; 3.5L; Rear.
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 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.