Genuine OEM Audi Coolant Hose with Coupling, part number 4K2819347K. This hose is a vital part of the engine cooling system, designed to connect various components and facilitate the flow of coolant. It is located within the engine bay, forming part of the complex cooling circuit. Weighing approximately 0.437 kg, this hose features integrated couplings for secure connections. Opting for a genuine OEM coolant hose guarantees precise fitment, optimal resistance to temperature and pressure fluctuations, and long-term reliability for the cooling system.