Genuine OEM Volkswagen Coolant Hose, part number 7E0122447R. This hose is an integral part of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. Its specific shape and material are engineered to withstand high temperatures and pressures. Opting for a genuine OEM coolant hose guarantees precise fitment, resistance to degradation from coolant chemicals, and reliable, leak-free performance essential for engine longevity.