Genuine OEM Audi Engine Coolant Hose, part number 5Q0122051AL. This hose is a crucial component in the engine cooling system, responsible for transporting coolant between various engine parts and the radiator to regulate engine temperature. It is positioned within the engine bay, connecting key cooling system components. Weighing 0.555 kg and measuring 0.56 m in length, this hose is constructed from high-quality, heat-resistant rubber compounds. Choosing a genuine OEM coolant hose ensures the correct internal diameter, routing, and material durability to withstand engine vibrations and temperature fluctuations, preventing leaks and maintaining cooling efficiency.