This OEM Ford Lincoln Mercury mass air flow sensor, part number 3L3A12B579BA, is a direct replacement unit tested to ensure quality. It is designed for a front placement on the vehicle and features a plug-in terminal type for easy installation. Manufactured by Ford, this mass airflow sensor (MAF sensor) is a genuine part with a manufacturer warranty of 1 month, making it a reliable choice for your car or truck's air intake and fuel delivery system.