Genuine OEM Volkswagen Left Radiator Air Duct, part number 5NA121283BA. This precisely molded plastic duct is designed to efficiently channel incoming airflow directly to the left side of the engine's radiator. By optimizing air delivery, it enhances the radiator's cooling efficiency, which is crucial for maintaining optimal engine operating temperatures. Weighing 0.106 kg, this genuine OEM air duct ensures correct routing geometry and durable construction for effective thermal management.