Genuine OEM Audi Engine Coolant Hose, part number 1K0122109BB. This hose is responsible for transporting coolant throughout the engine cooling system, ensuring efficient heat dissipation and preventing engine overheating. Weighing 0.145 kg, this component is constructed from high-quality, heat-resistant rubber, designed to withstand the pressures and temperatures of the cooling system. Choosing a genuine OEM coolant hose guarantees precise routing, correct material composition, and resistance to engine fluids and temperatures for leak-free performance.