Genuine OEM Audi Engine Coolant Hose, part number 04L121157AR. This hose is essential for carrying coolant to and from various engine components, facilitating efficient heat exchange within the cooling system. It is positioned on the lower right side of the cooling system assembly, connecting to the oil cooler. Measuring 0.16m in length, 0.065m in width, and 0.045m in height, and weighing 0.065 kg, this genuine OEM hose provides the correct flexibility, heat resistance, and secure fitment for reliable, leak-free operation, preventing coolant loss and engine overheating.