Genuine OEM Audi Coolant Hose, part number 4KE145569AT. This hose is an integral part of the vehicle's cooling system, responsible for transporting coolant to maintain the engine's optimal operating temperature. It is a short, bent hose with multiple connections, forming part of a larger hose assembly. Weighing 0.093 kg and measuring 0.22m in length, this hose is manufactured to precise factory specifications. Using a genuine OEM hose ensures correct routing geometry, material composition, and resistance to thermal cycling, which are crucial for preventing leaks and ensuring long-term cooling system reliability.