-6AN Fuel Inlet Fitting

The Holley -6AN Fuel Inlet Fitting (part number 26-73) is a straight adapter designed to connect -6 AN male fuel lines to 7/8-20 inch male ports, making it an essential component for fuel system assembly in high-performance engines. Constructed from aluminum with blue anodized finish, this fitting provides corrosion resistance and precise, leak-free connections in demanding fuel delivery applications.

The -6AN designation refers to a standardized fuel line size measuring 3/8 inch in outer diameter, widely adopted across performance fuel systems, carburetors, and fuel injection setups. The 7/8-20 inch male thread accepts carburetors, fuel filters, and regulator inlets that use this common metric. The straight configuration eliminates bends at the connection point, simplifying installation and reducing turbulence in fuel flow. Aluminum construction keeps weight minimal while the blue anodized coating resists oxidation in engine compartment environments where fuel system components operate continuously.

This fitting is ideal for builders and technicians assembling or upgrading fuel systems on street rods, racing engines, performance carbureted builds, and fuel-injected applications where precise OEM or aftermarket carburetor inlet specifications must be met. Holley's fuel system components are engineered to maintain consistent pressure and flow, critical factors in engine performance and reliability. The compact design (measuring 3.5 × 1.15 × 5 inches) allows installation in tight engine compartment spaces typical of vintage and modern performance builds.

AN-style fuel fittings have become the industry standard for performance fuel systems because of their reusable design, consistent thread pitch, and reliable sealing across a wide range of automotive and motorsport applications. Whether replacing a worn fitting or completing a full fuel system upgrade, this Holley adapter provides the precision connection point that OEM and performance fuel systems demand.