Genuine OEM Volkswagen Water Coolant Hose, part number 7E0122157BH. This hose is a vital component of the engine cooling system, designed to transport coolant between various engine components. It ensures efficient heat dissipation and maintains optimal engine operating temperatures. Weighing 0.39 kg, this hose measures approximately 42 cm in length. Genuine OEM hoses provide the correct routing geometry, material composition, and pressure resistance for reliable, leak-free performance.