Genuine OEM Audi Coolant Hose, part number 5QF122073E. This critical component is responsible for circulating engine coolant between various parts of the cooling system, such as the radiator, engine block, and heater core. It ensures efficient heat transfer to maintain optimal engine operating temperatures. Weighing 0.673 kg and measuring approximately 63.5 cm in length, this hose is constructed from durable, heat-resistant materials. Using a genuine OEM coolant hose guarantees the correct routing geometry, material composition, and pressure resistance for reliable, leak-free performance in the engine cooling system.