Genuine OEM Hyundai Fuel Tank Filler Neck Assembly, part number 31030J9000. This component is crucial for safely directing fuel from the vehicle's filler opening into the fuel tank during refueling. It forms a sealed pathway, preventing fuel spills and vapor leaks. Constructed from durable, fuel-resistant materials to withstand corrosive fuels and environmental exposure. Choosing a genuine OEM filler neck ensures exact fitment, proper sealing, and long-term reliability for the fuel system.