This product is a genuine Porsche oxygen sensor with the part number 9A160619803. It is designed to measure the amount of oxygen in the exhaust gas of a vehicle and send this information to the engine control unit. This helps the engine to adjust the air/fuel mixture for optimal performance and fuel efficiency. The sensor is an essential component for proper engine operation and emissions control. It is manufactured by Porsche and is a direct replacement for the original sensor in Porsche vehicles.