Shop Buick Century Oxygen Sensor (Rear, Lower). 3.8 liter. 3.8 liter, California. Grand Prix; Front; 3 EMISSION, Liter, Make - OEM Buick Part # 12576131 (12596558)

Oxygen. Sensor.
Calif. Oxygen Sensor. Heated (O2) (POSN 1). Ft. Snsr.

Oxygen Sensor

Fits Avalanche 1500, Escalade , Grand Prix, LaCrosse, Sierra 1500, Silverado, Suburban 1500, Tahoe , Yukon, Yukon XL 1500

3.8 liter. 3.8 liter, California. Grand Prix; Front; 3.8L; w/o Supercharger; California. LaCrosse; Front; 3.8L; California. 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 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.