Features: Mass air flow sensor allows the vehicle to detect the mass of airflow entering the engine necessary for proper fuel mixture. Mass air flow sensor can easily be located beside the air intake box inside the engine bay. Made of material, good performance and longer lifespan. This is a non-OEM product, accessory only! OE Number: 13621702078Specification: Material: Plastic, Metal Color: Black, Silver Tone Pin Number: 4 Size: 12.2x6.7x4.6cm /4.81"x2.64"x1.81"(L*W*H) Mount Hole Size: 5.3mm / 0.21" Fitment: for BMW 540i 4.0L V8 - Gas 1994-1995 1997-1998 for BMW 740i 4.0L V8 - Gas 1993-1995 1997-1998 for BMW 740iL 4.0L V8 - Gas 1993-1998 for BMW 840Ci 4.0L V8 - Gas 1994-1997 Package Includes:1 x Mass Air Flow Sensor Meter