Genuine OEM Hyundai Engine Breather Hose Assembly, part number 267102U110. This hose is a crucial component of the engine's positive crankcase ventilation (PCV) system, allowing blow-by gases to escape the crankcase and be re-routed for combustion. It connects to the valve cover and other engine components. Using a genuine OEM breather hose ensures the correct routing geometry, material resistance to oil and heat, and proper sealing to prevent vacuum leaks and maintain engine efficiency.