Genuine / OE Air Mass Sensor (MAF / Mass Air Flow Sensor) - Audi OE #: 06J 906 461 D - Hitachi #: HTC AFH60-37 100% NEW Genuine / OE Air Mass Sensor made by Hitachi for Audi. Audi OE #: 06J 906 461 D Hitachi # HTC AFH60-37 This item is the same item you would get from the Audi dealer - complete with Audi logos and numbers.