CFMoto 150 NK250 NK400 GT650MT Always check the OEM part number on your old sensor or consult a professional to confirm compatibility. 4-Wire Lambda Oxygen Sensor – Part No. 0258006937 – CFMoto This 4-wire O₂ lambda sensor, installed on the exhaust system, provides accurate readings of the air/fuel ratio to ensure optimal combustion, reduce pollutant emissions, and improve fuel consumption and engine responsiveness.
