Genuine OEM Audi Engine Coolant Pipe, part number 03C121497C. This precisely formed metal pipe is responsible for transporting coolant between various components of the engine cooling system, such as the engine block, radiator, or heater core. Its specific routing ensures efficient heat transfer and proper engine temperature regulation. Weighing 0.1705 kg, it is constructed from corrosion-resistant metal. Using a genuine OEM coolant pipe guarantees correct bends, precise fitting connections, and material durability to withstand high temperatures and pressures, preventing leaks and maintaining cooling system integrity.