Ford OEM Mass Air Flow Sensor. Fits many vehicles across the Ford Product line, it is the standard OEM sensor. This Direct Replacement sensor is sold individually and has easy installation with direct fit features. It comes as a full assembly with housing, filter box and filter box bracket. This sensor type is a Mass Sensor, and it is not a Performance Part. Purchase this quality product today for your vehicle's air intake and fuel sensor needs. It came off a strong running Explorer, but there is no return on electrical parts and sensors.