Genuine OEM Audi Coolant Hose, part number 4K2122109G. This hose is specifically designed to transfer coolant efficiently within the engine cooling system, connecting to components like the expansion tank. It is configured for Right-Hand Drive (RHD) vehicles and weighs 0.1 kg. Choosing a genuine OEM hose ensures correct routing geometry, material resistance to engine fluids, and reliable sealing for leak-free operation, especially for RHD configurations.