Genuine OEM Audi Coolant Hose, part number 0EF907743S. This hose is a critical component of the engine's cooling system, designed to transport coolant between the engine and the radiator or other cooling components. It is positioned within the engine bay. Constructed from high-quality, heat-resistant rubber, it ensures durability and prevents leaks under pressure. Genuine OEM parts are manufactured to exact specifications, ensuring proper coolant flow and system integrity.