Genuine OEM BMW EGR coolant hose, part number 11718507309. This hose is designed to transport coolant for the Exhaust Gas Recirculation (EGR) system, playing a vital role in emissions control and engine temperature regulation. Constructed from high-quality, durable rubber, it is built to withstand the demanding conditions of the engine bay. Using genuine OEM parts ensures the correct flow rate and material resistance for reliable EGR system operation.