Buy 2000 Buick Century Oxygen Sensor (Rear, Lower). 2.8 liter, rear. 3.6. 3.6 liter, rear. 4.6. CTS Liter, Right, Left - OEM Buick Part # 12590035

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

Oxygen Sensor

Fits CTS, SRX, STS

2.8 liter, rear. 3.6. 3.6 liter, rear. 4.6. CTS; CATALYST MONITORING; 2.8L. CTS; CATALYST MONITORING; 3.6L. CTS; ENGINE CONTROL; 5.7L. Rear. SRX; Rear. STS, STS-V; 3.6L; 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 2000 Buick Century to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Buick genuine parts.