Genuine OEM Audi Coolant Hose, part number 1K0122157CJ. This hose is a crucial component of the engine cooling system, responsible for transporting coolant to various engine parts to maintain optimal operating temperatures. It is positioned within the engine bay, connecting specific elements of the coolant circuit. Weighing 0.171 kg and measuring 0.43 m in length, this hose is made from durable, heat-resistant materials. Using a genuine OEM hose ensures correct routing geometry, pressure resistance, and material compatibility with engine coolants, which are vital for preventing leaks and maintaining the integrity of the cooling system.