The Genuine Porsche Mass Air Flow Sensor O-Ring (part number 95511064600) is a small rubber ring that is used to seal the connection between the mass air flow sensor and the air intake tube in Porsche vehicles. This o-ring is an essential component in ensuring proper air flow and accurate readings from the mass air flow sensor, which is responsible for measuring the amount of air entering the engine and adjusting the fuel injection accordingly. Made from high-quality materials, this genuine Porsche o-ring is designed to fit perfectly and provide a reliable seal for optimal performance. It is a crucial replacement part for maintaining the efficiency and reliability of your Porsche's engine.