The Genuine Porsche Mass Air Flow Sensor Screw is a small but essential component of the mass air flow sensor in Porsche vehicles. This screw is made from high-quality materials to ensure durability and reliability. It is designed specifically for Porsche models and is an exact replacement for the original part. The screw is used to secure the mass air flow sensor in place, ensuring accurate readings and proper functioning of the sensor. It is an important part of the engine's fuel management system and plays a crucial role in maintaining optimal performance. This Genuine Porsche screw, part number 99991926101, is a genuine OEM product and is recommended for use in Porsche vehicles to ensure the best possible performance.