Genuine OEM Audi Left Outer Radiator Coolant Hose, part number 8K0145921C. This component is responsible for carrying coolant to and from the radiator on the left side, playing a vital role in maintaining optimal engine operating temperatures. With dimensions of 0.155m length, 0.065m width, and 0.028m height, and weighing 0.053 kg, it is engineered for precise fitment. Choosing a genuine OEM coolant hose ensures correct material composition for heat and pressure resistance, preventing leaks and ensuring reliable engine cooling.