Male Adapter Fitting #6 x 16mm x 1.5 FI Black

The FRAGOLA Male Adapter Fitting #6 x 16mm x 1.5 FI Black (part #491963-BL) is a precision straight adapter engineered for fuel injection system applications requiring a secure, leak-free connection between AN-6 male fittings and 16mm x 1.5 metric female ports. This black anodized aluminum adapter delivers the reliability demanded in high-flow fuel systems where connection integrity is critical to engine performance and safety.

Constructed from aluminum and finished in black anodize, this adapter maintains corrosion resistance while providing a professional appearance in engine bays. The straight design eliminates unnecessary angles that can restrict fuel flow or create turbulence. AN-6 male to 16mm x 1.5 male threading accommodates common metric fuel injection specifications found in performance fuel systems, custom fuel rail builds, and aftermarket fuel management setups. The compact footprint (1.6 x 1 x 4.35 inches, weighing just 0.03 lbs) permits installation in tight engine compartment configurations without compromising accessibility or serviceability.

This adapter is specified for fuel injection applications where metric and AN standard fittings must interface within a single fuel delivery circuit. Builders working on carbureted-to-fuel-injection conversions, standalone EFI installations, or hybrid fuel systems often require these transition fittings to maintain system compatibility while upgrading fuel supply architecture. The adapter suits both naturally aspirated and boosted engine platforms, provided the fuel system pressure rating remains within specifications for both the fitting and downstream injector hardware.

FRAGOLA is recognized for manufacturing SAE and AN-spec fuel fittings with tight tolerances and consistent quality. This male adapter carries the UPC 822320021141 and is sold individually, allowing builders to source the exact quantity needed for multi-point fuel system configurations or redundant systems.