Genuine OEM Volkswagen coolant hose, part number 06A121065BA. This hose is a critical component of the engine's cooling system, facilitating the circulation of coolant between the engine and the radiator. It is positioned within the engine bay, connecting various cooling system components. Made from high-quality, heat-resistant rubber to withstand the demanding operating conditions. Genuine OEM coolant hoses ensure proper flow and prevent leaks, maintaining optimal engine temperature.