Genuine OEM Audi Coolant Hose, part number 1EA122101BR. This essential component is responsible for transporting coolant throughout the engine cooling system, playing a critical role in regulating engine temperature. It connects directly to the radiator, facilitating heat exchange. Weighing 0.559 kg and measuring 0.6m in length, this hose is designed for specific routing and pressure requirements. Using a genuine OEM coolant hose ensures correct fluid resistance, pressure handling, and a leak-free connection, preventing potential engine damage from overheating.