Genuine OEM Audi Radiator Air Duct, part number 4M0121284CK. This component is designed to guide air effectively to various cooling system components, ensuring optimal thermal management. It is installed on the right side of the radiator assembly. Made from durable black plastic, it measures approximately 0.585 meters in length. Using a genuine OEM air duct ensures precise fitment and aerodynamic efficiency, critical for maintaining engine performance.