Genuine OEM Audi Coolant Hose, part number 06D121101B. This hose is a vital part of the engine cooling system, responsible for connecting coolant flanges and facilitating the flow of coolant to maintain optimal engine operating temperatures. Made from durable rubber, it is engineered to withstand the thermal and pressure demands of the cooling system. Weighing 0.041 kg, this genuine OEM hose ensures correct routing geometry and resistance to cooling system fluids, preventing leaks and ensuring reliable performance.