Genuine OEM Audi Coolant Hose, part number 8R0819378E. This essential component is responsible for transporting coolant throughout the engine cooling system, playing a critical role in regulating engine temperature and preventing overheating. It is engineered to withstand high temperatures and pressures common in cooling systems. With a length of 0.22m, it is precisely formed for its specific routing. Opting for a genuine OEM coolant hose ensures the correct material composition, flexibility, and resistance to degradation, which are vital for reliable and leak-free operation.