Genuine OEM Volkswagen Radiator Fan, part number 1S0121207J. This essential component is responsible for drawing air through the radiator core, facilitating the dissipation of heat from the engine's cooling system. It is typically mounted directly behind or in front of the radiator. This fan assembly measures 0.5m in length and weighs 3.5 kg. Selecting a genuine OEM radiator fan guarantees correct airflow characteristics, balanced operation, and reliable electrical connections for effective engine temperature management.