Genuine OEM Audi Engine Coolant Pipe, part number 0P2121164B. This pipe is a critical component of the engine cooling system, responsible for transporting coolant to various engine parts to regulate temperature. It is integrated within the complex network of cooling hoses and pipes. Weighing approximately 0.06 kg, it is designed for precise routing and connection. Choosing a genuine OEM coolant pipe guarantees correct dimensions, material composition, and resistance to temperature and pressure fluctuations, preventing leaks and ensuring optimal engine thermal management.