Shop 2009 Cadillac Escalade EXT Oxygen Sensor (Upper). 2.7 LITER. Silverado, Sierra; 2.7L; Upstream. EMISSION, LITER, Make - OEM Cadillac Part # 12679935

Ft Oxygen Sensor. Oxygen snsr.
Oxygen Sensor.

Oxygen Sensor

Fits Sierra 1500, Sierra 1500 Limited, Silverado

2.7 LITER. Silverado, Sierra; 2.7L; Upstream.
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.