Tapered Flare Fitting -6an to -6an

The Tapered Flare Fitting -6AN to -6AN by Aeromotive is a precision adapter designed for high-performance fuel systems, hydraulic lines, and pneumatic applications where reliable, leak-free connections are non-negotiable. This straight-through fitting connects two -6 AN male ports with matching O-ring bosses, making it ideal for fuel delivery systems in racing engines, custom fuel injection setups, and aftermarket performance builds. Professionals and enthusiasts rely on tapered flare fittings to eliminate sealing failures that can compromise system integrity under pressure.

Constructed from aluminum and finished in black anodize, this fitting combines lightweight durability with corrosion resistance—essential for underhood and exposed installations. The tapered flare design creates a metal-to-metal seal at the fitting face, while the integrated O-ring provides secondary sealing redundancy to prevent pressurized fluid loss. The -6 AN sizing (3/8-inch hose nominal) handles flow rates typical of fuel rails, return lines, and boost systems without throttling, while the straight configuration allows direct port-to-port connection in confined engine bays where angle adapters would be impractical.

This adapter is essential for builders integrating aftermarket fuel pumps, fuel pressure regulators, or custom fuel distribution manifolds into existing systems. It pairs seamlessly with Aeromotive fuel systems, carbureted fuel injection conversions, and motorsport-grade hydraulic circuits where standard automotive fittings fall short. Installation requires hand-tightening followed by a quarter-turn with a wrench to seat the tapered face; over-tightening is unnecessary and risks damaging the O-ring seal. Each fitting ships as a single unit, ready to integrate into your system.