This brand new GENUINE FORD Mass Airflow Sensor (MAF Sensor) with manufacturer part number J1BA-12B579-AA is designed for 1.5 TDCi and 2.0 TDCi engines found in models such as KUGA, FOCUS, TRANSIT, MONDEO, and CONNECT. The sensor is placed in the engine compartment to monitor the amount of air entering the engine, ensuring optimal fuel efficiency and performance. This genuine FORD sensor is essential for maintaining the proper air-to-fuel ratio for smooth engine operation.