This premium 24V NOX Sensor comes with part numbers 2006245 and 5WK9 44B/5WK944B. It is engineered to fit perfectly within truck engine exhaust systems. It tracks NOX emission concentrations precisely and sends live data to the engine control unit. It is assembled with high-sensitivity electronic parts to maintain consistent detection even under extreme temperatures. The unit adopts a tough waterproof and anti-disturbance layout for prolonged operational lifespan. It complies fully with OEM manufacturing criteria and works great as a substitute for aged or defective NOX sensors.