DescriptionColorFittings AN Flare Block Off Plugs are precision CNC-machined to securely seal unused AN ports in fuel, oil, coolant, brake, and power steering systems. Designed with a true 37-degree AN flare seat, these plugs provide a tight, leak-free seal for high-pressure and high-temperature applications.Manufactured from aerospace-grade 6061-T6 billet aluminum and finished with ColorFittings’ proprietary polishing and anodizing process, these AN block off plugs offer superior strength, corrosion resistance, and long-term durability. Ideal for E85, ethanol-based fuels, race fuel, pump gas, oil, coolant, and air systems in street performance, racing, off-road, and marine environments.Perfect for capping unused lines, ports, and distribution blocks, these fittings ensure clean, safe, and professional plumbing setups.
