Buy Mazda CX-9 Oxygen Sensor (Rear, Upper, Lower). 2011-15. 3.7 LITER, lower. CX-9; Lower. Mazda6; 3.7L ENGINE, LITER, Make - OEM Mazda Part # CA4118861 (CA41-18-861, CA3918861,, CA39-18-861)

Oxygen. Sensor.
Oxygen Sensor. (O2). Ft. Snsr.

Fits CX-9 (2010 - 2015)

2011-15. 3.7 LITER, lower. CX-9; Lower. Mazda6; 3.7L; Lower.
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 Mazda CX-9 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Mazda genuine parts.