Genuine OEM Hyundai Exhaust Manifold Stud Bolt, part number 221614A000. This critical fastener is designed to secure the exhaust manifold firmly to the cylinder head. It provides a robust and reliable connection point, which is essential for preventing exhaust leaks and maintaining optimal engine performance and emissions. Using a genuine OEM stud bolt ensures the correct thread pitch, material strength, and corrosion resistance for long-term durability in high-temperature exhaust environments.