Genuine OEM Audi Engine Cooling Tube, part number 4H0121485AA. This precisely formed metal tube is designed to direct the flow of coolant within the engine cooling system, ensuring efficient heat dissipation. It is positioned on the right side of the engine assembly. The tube weighs 0.14 kg and has a length of 0.425 meters. Choosing a genuine OEM cooling tube ensures the correct material composition for corrosion resistance and exact routing geometry, preventing leaks and maintaining the integrity of the cooling system.