Genuine OEM Volkswagen Coolant Hose, part number 5QM122051T. This hose is an essential part of the engine cooling system, designed to transport coolant between different components. It is marked as number 12 in the diagram. The part weighs 0.378 kg and has dimensions of 0.445m x 0.265m x 0.1m. Genuine OEM coolant hoses are constructed from materials that resist heat, pressure, and degradation, ensuring reliable fluid transfer.