Hitachi MAF0120 Mass Air Flow Sensor OEM

The Hitachi MAF0120 Mass Air Flow Sensor is a genuine original equipment replacement designed to measure the volume and density of air entering the engine. Accurate airflow data is essential for the engine control unit to calculate proper fuel injection and ignition timing, and a failing MAF sensor can cause symptoms ranging from rough idling and hesitation to poor fuel economy and check engine lights. By restoring factory-spec airflow measurement, the MAF0120 helps return the vehicle to its original driveability characteristics.

Built with precision-manufactured sensing elements and a synthetic material housing, this sensor features a flange mount for direct bolt-on installation. A key design detail is the built-in contaminant bypass port, which channels airborne debris away from the delicate sensing element to maintain measurement accuracy over time. The digital output signal ensures clean, consistent communication with the ECU. Operating at a maximum supply voltage of 12 volts, the MAF0120 is engineered to meet OE durability standards for long-term, dependable service.