Genuine OEM Volkswagen Coolant Hose, part number 3AA122051F. This hose is an integral part of the engine cooling system, responsible for circulating coolant between the engine and the radiator to dissipate heat. It is positioned within the engine cooling circuit, connecting to the radiator. Weighing 0.365 kg with dimensions of 0.4m x 0.33m x 0.115m, this genuine OEM part provides the correct material composition and heat resistance for reliable coolant circulation, preventing leaks and engine overheating.