Buy OEM Mazda Part # LF6618861B (LF66-18-861B, LF66-18-861C-9U, LF6618861A, LF6618861C, USELF6618861B). Oxygen Sensor. Oxygen Sensor - Repair or Replace A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine

Oxygen. Sensor. (O2). Ft.
Exc.Calif. Oxygen Sensor.

Oxygen Sensor

Fits 3

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 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Mazda genuine parts.