Genuine OEM Hyundai Upper Radiator Hose, part number 25414K4000. This hose is a critical component of the engine cooling system, designed to transport heated coolant from the top of the radiator back to the engine. It connects the upper section of the cooling system, ensuring efficient heat exchange. Choosing a genuine OEM hose guarantees the correct routing geometry, pressure rating, and material composition for long-term fluid resistance and reliable cooling performance.