Shop 2012 Cadillac Escalade EXT Oxygen Sensor (Rear, Lower). 1.4 LITER TURBO. 1.8 LITER. Sonic; Rear. LITER, EMISSION, Make - OEM Cadillac Part # 55574136

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

Oxygen Sensor

Fits Sonic

1.4 LITER TURBO. 1.8 LITER. Sonic; 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.