Genuine OEM Volkswagen Radiator Air Duct, part number 5NA121283F. This component is designed to channel incoming airflow directly to the radiator, ensuring optimal heat exchange and engine cooling efficiency. It is positioned on the left side of the radiator assembly. Weighing 0.108 kg and measuring 0.53 m in length, using a genuine OEM air duct ensures the correct aerodynamic profile and mounting points, which is crucial for effective cooling and preventing overheating.