Genuine OEM Volkswagen Lower Radiator Air Duct, part number 5NA121333F. This essential component is strategically positioned to precisely guide and optimize airflow directly to the engine radiator, enhancing cooling efficiency and preventing engine overheating. It is located in the lower section, beneath the main radiator assembly. Weighing 0.436 kg with dimensions of 0.365m x 0.29m x 0.27m, this duct ensures proper thermal management. Using genuine OEM air ducts guarantees correct aerodynamic design and durable material construction, maintaining optimal engine operating temperatures.