Buy 2011 Cadillac Escalade EXT Oxygen Sensor. 4.6 liter. 4.6 liter, all. 4.9 liter, California. All Liter, EMISSION, Make - OEM Cadillac Part # 19178939 (25312178)

Sensor Assembly, Heated Oxygen (O2).
Calif. Oxygen Sensor.

Oxygen Sensor

Fits Allante, Aurora, Deville , Eldorado, Seville

4.6 liter. 4.6 liter, all. 4.9 liter, California. All Models; 4.6L. All Models; 4.9L. Allante. At manifold. Aurora.
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 2011 Cadillac Escalade EXT to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Cadillac genuine parts.