Genuine OEM Volkswagen Engine Coolant Hose, part number 7T0122073CD. This hose is a critical component of the engine cooling system, responsible for transporting hot coolant between various engine components, such as the engine block, radiator, and heater core, to regulate engine temperature. It is positioned within the engine bay as part of the coolant circulation path. Weighing approximately 0.13 kg and measuring 0.36 meters in length, this hose is designed to withstand high temperatures and pressures. Using a genuine OEM coolant hose ensures the correct material composition, flexibility, and resistance to thermal cycling, preventing leaks and maintaining the efficiency and longevity of the engine cooling system.