Shop 2001 Buick Century Oxygen Sensor (Upper). CANISTER & SENSORS, 4.2L twin-turbo, bank 1 sensor 1. CT6 Bank, CANISTER, SENSORS - OEM Buick Part # 12687257

Ft Oxygen Sensor. Oxygen snsr.
Oxygen Sensor.

Oxygen Sensor

Fits CT6

CANISTER & SENSORS, 4.2L twin-turbo, bank 1 sensor 1. CT6; 4.2L; Bank 1 Sensor 1.
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.