Genuine OEM Kia Oil Cooler Hose Assembly, part number 256402F000. This hose is responsible for transporting engine oil to and from the oil cooler, playing a vital role in regulating engine temperature and preventing overheating. It is a curved rubber hose, supplied with clamps for secure installation. Opting for a genuine OEM hose ensures the correct material composition for oil resistance, precise routing geometry, and durable construction to withstand engine vibrations and temperature fluctuations, preventing leaks and maintaining cooling system integrity.