Adapt. #4 Flare X 1/4npt Black

The Adapt. #4 Flare X 1/4NPT Black from XRP-XTREME RACING PROD. is a precision-engineered adapter fitting designed for high-performance fuel system and hydraulic line applications in motorsports and modified vehicle builds. This straight adapter seamlessly transitions between 4 AN male ports and 1/4 inch NPT male connections, making it essential for custom fuel delivery systems, turbocharger plumbing, nitrous oxide lines, and brake system conversions where OEM fittings don't match modern aftermarket components. Whether you're building a race engine, upgrading a street machine, or integrating specialty equipment, this adapter eliminates the need for improvised solutions and ensures leak-free, dependable connections.

Constructed from lightweight aluminum and finished in durable black anodized coating, the Adapt. #4 Flare X 1/4NPT Black resists corrosion and oxidation in engine bays and underbody environments while maintaining a professional appearance. The flare design on the 4 AN side creates a reliable seal under pressure, while the NPT (National Pipe Taper) threading on the opposing end provides a proven, industry-standard connection used across performance fuel systems, cooling circuits, and transmission cooler installations. At just 0.02 lbs, this adapter adds negligible weight to your build while handling the flow rates and pressure demands of turbocharged engines, supercharger systems, and high-volume fuel injection setups.

Mechanics and performance builders select the Adapt. #4 Flare X 1/4NPT Black when adapting legacy gauge ports, sensor bungs, or manifold fittings to modern -4 AN braided hose and fittings. This adapter is particularly valuable in engine bay plumbing where space is tight and existing NPT ports cannot be modified—common in fuel pressure regulator installations, coolant bypass lines, and vacuum distribution blocks on modified engines. Installation is straightforward: thread the NPT end into the receiving port with appropriate sealant tape, then secure the 4 AN flare connection using a wrench. XRP's reputation for precision in extreme racing applications ensures this fitting meets the exacting standards of professional and enthusiast builds alike.