Shop 2009 Cadillac Escalade EXT Sensor. Oxygen. (RR). (Rear). 6.6 LITER DIESEL, EGR VALVE & RELATED NOx, RELATED, Repair - OEM Cadillac Part # 12718742 (12680215)

A Sensor which detects the amount of Nox in the exhaust system. NOX Sensor. Oxygen Sensor. Ft. Nitrogen Oxide (NOx).

Nitrogen Oxide (NOx) SensorOxygen Sensor

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

6.6 LITER DIESEL, EGR VALVE & RELATED COMPONENTS, 2017-19.
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.