Genuine OEM Audi Engine Coolant Hose, part number 06F121101. This flexible hose is a vital part of the engine cooling system, responsible for carrying hot coolant from the engine to the radiator and returning cooled fluid. Its specific curved shape ensures correct routing and fitment within the engine bay. Made from high-quality, heat-resistant rubber, a genuine OEM coolant hose is designed to withstand extreme temperatures and pressures, preventing leaks and ensuring the engine operates within its optimal temperature range.