Genuine OEM Volkswagen Engine Coolant Hose, part number 03N122073E. This hose is a vital part of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It connects various components within the engine's complex cooling circuit. Weighing approximately 0.20 kg, it is designed to withstand the heat and pressure of the cooling system. Using a genuine OEM coolant hose ensures the correct material composition, heat resistance, and precise routing geometry, preventing leaks and maintaining the integrity of the cooling system.