Tapered Flare Fitting -10an to -8an

The Aeromotive Tapered Flare Fitting -10AN to -8AN (part number 15610) is a precision aluminum adapter designed to connect fuel lines of different AN sizes in high-performance fuel system applications. This straight-port adapter bridges a -10 AN male inlet to a -8 AN male outlet, making it essential for custom fuel delivery system configurations where line sizing transitions are required. The black anodized aluminum construction resists corrosion while maintaining the lightweight profile demanded in racing and performance vehicle builds.

The tapered flare design and O-ring sealing interface provide reliable pressure retention across fuel system operations. AN (Army-Navy) fittings are the industry standard for high-flow fuel systems because of their precise thread geometry and leak-free design under varying pressure conditions. The -10 to -8 size transition accommodates scenarios where fuel lines reduce in diameter downstream—common in fuel pump discharge lines that feed into smaller diameter rails or regulators. Weighing just 0.08 lbs, this adapter adds negligible mass while ensuring compatibility between components from different manufacturers or system stages.

This fitting serves fuel system builders, performance shops, and custom vehicle fabricators who need reliable AN-standard adapters for transitioning between different line sizes. It's commonly used in EFI conversions, fuel injection system upgrades, and turbo applications where fuel delivery architecture requires stepped-down line routing. The straight-port configuration allows direct linear flow without the pressure loss or turbulence common in 90-degree or 45-degree adapters, making it ideal for applications where consistent fuel delivery pressure is critical to engine performance and tuning stability.