-6AN Flare to AN Straigh t Cut Thread (9/16-18)

The -6AN Flare to AN Straight Cut Thread (9/16-18) fitting from VIBRANT PERFORMANCE is an essential adapter for high-performance fuel system and fluid line modifications. This adapter bridges two common AN (Army-Navy) connection standards—the flared end and the straight-threaded port—allowing builders to integrate components from different manufacturers or system designs. Whether you're upgrading a fuel injection setup, installing a custom fuel pressure regulator, or consolidating brake line connections, this fitting eliminates the need for multiple adapter chains and reduces potential leak points in critical systems.

Built with precision engineering, the -6AN Flare to AN Straight Cut Thread adapter features a -6AN flare connection on one end (standard 37-degree JIC flare) and a 9/16-18 straight-thread port on the opposite end, meeting SAE specifications for fuel system reliability. The flared end ensures a leak-free seal under pressure without the need for additional ferrules, while the straight-threaded 9/16-18 side accommodates manifold ports, regulator inlets, and block fittings common in performance engine builds. VIBRANT PERFORMANCE's manufacturing standards guarantee consistent thread tolerances and finish quality, critical for maintaining system integrity under boost and thermal cycling.

Mechanics and tuners routinely specify this adapter for EFI conversions, turbo fuel system upgrades, and custom cooling line configurations on street and track vehicles. Compatibility extends across aftermarket fuel rails, OEM and aftermarket fuel pressure regulators, and engine block ports with 9/16-18 threads. The compact 3.55-inch length and minimal 0.03-pound weight make installation straightforward in tight engine bays, and the fitting integrates seamlessly with braided hose, rubber fuel line, or additional AN adapters. For reliable fluid transfer in demanding applications, this VIBRANT PERFORMANCE adapter delivers the precision connection automotive professionals demand.