Shop Buick Century Oxygen Sensor (Rear, Lower). Encore; Eng. Vin B - LUV; Downstream. Trax; Eng. Vin B - EMISSION, Vin - OEM Buick Part # 55574135

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

Oxygen Sensor

Fits Encore, Trax

Encore; Eng. Vin B - LUV; Downstream. Trax; Eng. Vin B - LUV; Downstream. W/o high output.
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.