Buy 2007 Mazda CX-9 Oxygen Sensor (Rear). 2.0 LITER, Federal, rear. 2.5 LITER, on exhaust pipe, rear EMISSION, LITER, Make - OEM Mazda Part # KLL918861A9U (KLL-918-861A-9U, KLL9-18-861A)

Oxygen Sensor.
Oxygen Sensor.

Oxygen Sensor

Fits 626, MX-6

2.0 LITER, Federal, rear. 2.5 LITER, on exhaust pipe, rear. 626, MX-6; 6 Cyl; On Exhaust Pipe; Rear; All.
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 2007 Mazda CX-9 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Mazda genuine parts.