Genuine OEM Volkswagen Cooling Hose, part number 2N1121444T. This hose is a critical component of the engine cooling system, responsible for transporting coolant between various engine components, including the expansion tank and radiator. It measures approximately 0.94 meters in length. Using a genuine OEM cooling hose ensures the correct routing geometry, material resistance to heat and coolant chemicals, and a leak-free connection for reliable engine cooling.