Genuine OEM Audi Engine Coolant Pipe, part number 022121151F. This essential component is responsible for transporting engine coolant through various parts of the cooling system. It plays a critical role in regulating engine temperature, preventing overheating and ensuring efficient operation. This rigid pipe weighs approximately 0.352 kg and measures 0.55 meters in length. Using a genuine OEM coolant pipe guarantees precise fitment, correct routing, and resistance to temperature and pressure fluctuations, which are crucial for the integrity and longevity of the entire cooling system.