Genuine OEM Audi Coolant Hose, part number 7L6122051T. This essential hose is responsible for circulating coolant throughout the engine cooling system, ensuring the engine maintains its optimal operating temperature. Weighing approximately 0.37 kg and measuring 0.49 meters in length, this hose is designed with specific bends and material properties to withstand high temperatures and pressures. Using a genuine OEM coolant hose ensures correct routing geometry, resistance to thermal cycling, and compatibility with coolant fluids, preventing leaks and engine overheating.