Kia KX3 2015 Oxygen Sensor 39210-2E771 Precise control reduces fuel consumption

If your vehicle idles roughly, fuel economy rises, or engine warning light is on, and associated with oxygen sensor aging, this part monitors exhaust oxygen and provides feedback to ECU to adjust air-fuel ratio. OEM number 39210-2E771; fits Kia KX3 2015 model. Ensure sensor threads are clean; use specialized socket to tighten to torque spec to avoid cracking ceramic component.