Description: 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! Specification: Material: Plastic, Metal Color: Black OE Number: 5WK97021, 8200682558, H8200702517 Pin Number: 4 Size: 10.9x10.8x8.5cm / 4.29''x4.25''x3.35''(L*W*H) Mount Hole Size: 6.9mm / 0.27'' Package Includes:1 x Mass Air Flow Sensor Meter