Genuine OEM Volkswagen Transmission Oil Sump, part number 01V321359A. This part serves as the reservoir for transmission fluid, crucial for lubricating and cooling the transmission components. It comes with a new gasket to ensure a proper seal and prevent fluid leaks. The sump also typically houses the transmission filter. Genuine OEM parts ensure precise dimensions for correct fluid capacity and leak-free operation, maintaining the longevity of your transmission.