Genuine OEM Volkswagen Engine Radiator Upper Coolant Hose, part number 3C0122101GG. This essential hose assembly is responsible for carrying hot coolant from the engine to the radiator, facilitating the cooling process. It is positioned as an upper connection within the engine cooling system. Made from durable rubber and plastic, this hose weighs 0.85 kg and features a complex, multi-branching design for precise routing. Using a genuine OEM coolant hose guarantees the correct material composition for heat and pressure resistance, along with exact routing geometry and connector compatibility, preventing leaks and ensuring efficient engine cooling.