Genuine OEM Audi Coolant Hose, part number 7M3122073BG. This flexible hose is designed to transport engine coolant between various components of the cooling system, ensuring efficient heat transfer and maintaining the engine's operating temperature. It measures approximately 33.5 cm long, 15.5 cm wide, and 5.5 cm high, and weighs 0.297 kg. Using a genuine OEM coolant hose ensures the correct material composition, internal diameter, and routing geometry for reliable, leak-free performance under engine operating pressures and temperatures.