6AN Fuel Pump Adapter Blue

The REDHORSE PERFORMANCE 6AN Fuel Pump Adapter Blue is a precision fuel line fitting designed to connect 6 AN male ports to 5/8-18 inverted flare male connections. This straight adapter is engineered for fuel system applications where reliable, leak-free connections are critical—including high-performance fuel pumps, carburetors, and fuel rails in custom automotive builds. The blue anodized aluminum construction provides corrosion resistance while maintaining the exact dimensional tolerance required for inverted flare sealing.

The 6 AN to 5/8-18 inverted flare conversion is essential when upgrading fuel system components that use different connection standards. The inverted flare design creates a mechanical seal that tightens as pressure increases, making it suitable for both carbureted and fuel-injected systems operating at moderate pressures. The aluminum material offers a 0.06 lb weight advantage over brass alternatives, reducing overall system weight without sacrificing strength. The straight configuration eliminates unnecessary bends, improving flow efficiency and simplifying installation in tight engine bay spaces.

This adapter is ideal for builders and restoration specialists working on classic muscle cars, vintage hot rods, and custom fuel delivery systems. It solves compatibility issues when sourcing modern fuel pumps with 6 AN outlets alongside older carburetor or fuel rail designs that specify 5/8-18 inverted flare inlets. The REDHORSE PERFORMANCE 5060 series is recognized in the fuel system community for maintaining tight tolerances and delivering consistent performance across thousands of hours of engine operation.