O2 Oxygen Sensor 539-0118 5390118 New Nitrogen Oxide Sensor Nox Sensor For Caterpillar CAT Engine C13 C13B C15 C18 416 420 420XE 428(Note Only the Probe)

539-0118 5390118 New Nitrogen Oxide Sensor Nox Sensor For Caterpillar CAT Engine C13 C13B C15 C18 416 420 420XE 428 Made of material, durable, wear-resistant and corrosion-resistant, with a longer service life It is a direct replacement for old or broken parts. Manufactured according to factory specifications and easy to replace The function of the oxygen sensor is to monitor the mixture at all times to keep the engine in the best mixture combustion state Oxygen Sensor is designed to improve fuel economy while reducing harmful emissions. Helps the engine run efficiently in air-gas ratio. Improve engine response and performance.