Genuine OEM Audi Coolant Hose With Coupling, part number 8R0121101J. This hose transports coolant within the engine cooling system and features an integrated coupling for quick and secure connections. Weighing approximately 0.217 kg, it ensures efficient fluid transfer. Using a genuine OEM coolant hose with coupling guarantees the correct material durability, leak-free connections, and precise fitment, which are essential for the reliability of the engine's thermal management.