Shop 2004 Buick Century Oxygen Sensor (Rear, Lower). 4.6 LITER. DTS; Rear. Lucerne; Rear; 4.6L. Oxygen EMISSION, LITER, Make - OEM Buick Part # 12597989

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

Oxygen Sensor

Fits DTS, Lucerne

4.6 LITER. DTS; Rear. Lucerne; Rear; 4.6L.
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.