Shop 1991 Buick Century Oxygen Sensor (Upper, Lower). 3.6 liter. ATS; 3.6L; Upper. ATS; 3.6L; w/o Liter, SENSORS, CANISTER - OEM Buick Part # 12671088

Oxygen. Sensor. Snsr. Ft.
Oxygen Sensor.

Oxygen Sensor

Fits ATS, Camaro, CT6, CTS

3.6 liter. ATS; 3.6L; Upper. ATS; 3.6L; w/o V-Series; Pre-Catalyst. Camaro; 3.6L; Upstream. CANISTER & SENSORS, 3.6L. COUPE, 3.6 liter. CT6; 3.6L; Front. CTS; 3.6L; w/o Vsport; Upper. SEDAN, CANISTER & SENSORS, 3.6 liter.
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.