Genuine OEM Hyundai Urea Filler Neck Assembly, part number 31530N7000. This assembly is crucial for the vehicle's Selective Catalytic Reduction (SCR) system, allowing for the safe and efficient refilling of the urea (AdBlue) tank. It connects the external fill point to the urea reservoir. Using a genuine OEM filler neck ensures a leak-free connection and proper integration with the vehicle's emissions system, maintaining factory standards for durability and environmental compliance.