Genuine OEM Volkswagen Engine Radiator Fan, part number 2H0121203K. This critical component is responsible for drawing air through the radiator, enhancing the cooling process, especially at low speeds or when stationary. It is typically mounted directly behind the radiator. Weighing 6.52 kg, this fan assembly is designed for efficient airflow and quiet operation. Genuine OEM radiator fans provide the correct airflow characteristics and electrical connections for optimal engine cooling and system integration.