Genuine OEM Audi Engine Coolant Pipe, part number 9J1121559A. This rigid pipe is an integral component of the engine cooling system, responsible for efficiently transferring coolant between various engine components and the radiator. Its function is to ensure the engine maintains its optimal operating temperature, preventing overheating. The pipe measures approximately 1.87 meters in length and weighs 0.179 kg. Using a genuine OEM coolant pipe guarantees the correct material composition, precise bends, and robust construction necessary to withstand engine temperatures and pressures, ensuring reliable and leak-free coolant circulation.