Genuine OEM Audi Coolant Hose, part number 1T0122157AK. This molded rubber hose is a critical component in the engine's cooling system, designed to transport coolant between various components. It features specific bends and quick-connect fittings for precise integration into the coolant circuit. Constructed from durable, heat-resistant rubber, it ensures a secure and leak-free connection under varying temperatures and pressures. Using a genuine OEM hose guarantees the correct material composition, pressure rating, and exact routing geometry for reliable and long-lasting cooling performance.