Replacement MAF sensor Air Flow Sensors MAFs measure the amount and characteristics of air entering the engine, providing highly accurate airflow readings to the ECU over a wide range of ambient temperatures, thereby ensuring efficient engine operation. Please clean out the air box and replace the air filter before installing this MAF sensor. Trustworthy Quality Uses precision elements and highquality components for enhanced durability and accurate air flow measurements. The MAFs must go through multiple inspections and air flow tests to ensure precise sensor reading and data transmission. Ensure fit Compatible with Ford, Lincoln and Mercury Vehicles, 20042011 Crown Victoria, 20072014 Edge, 20052012 Escape, 20052011 Expedition, 20042012 Explorer, 20042010 F150, 20052010 Ford F250350 Super Duty, 20062012 Fusion, 20042011 Ranger, 0092012 MKS, 20072015 MKX, 20072012 MKZ, 20052011 Navigator Town Car, 20052011 Grand Marquis Mariner, 20062011 Milan, 20052007 Montego, 20042010 Mountaineer and more. Relaces Part 3L3Z12B579BA, 3L3Z12B579BA, MAF0012, 2451108, AF10140, MAS0140, AFLS131. The MAF Sensor can easily be located beside the air intake box inside the engine bay. 12Month Warranty This mass air flow sensor assembly comes with 12 months warranty, if the sensor ever fails on your car, simply contact us for free replacement or refund. Save time and money off of dealer prices by purchasing this part and taking advantage of our product and services.