SKU: VIB16438
UPC: 690092159894
MPN: 16438
The Inverted Flare Adapter Fitting -8AN to 5/8in-18 is a critical hydraulic line connector engineered for high-performance fuel, coolant, and brake system applications in modified vehicles. This adapter bridges AN (Army-Navy) standard fittings to SAE inverted flare ports, making it indispensable for builders integrating aftermarket fuel systems, custom cooling loops, or upgraded braking components. Whether you're converting a carbureted engine to fuel injection or running a standalone ECU with custom fuel delivery, this fitting ensures leak-free, reliable pressure containment in demanding automotive environments.
The -8AN to 5/8in-18 inverted flare configuration delivers a secure, double-ferrule seal that handles the vibration and thermal cycling common in engine bays and fuel systems operating at high flow rates. The inverted flare design—where the tubing seat tapers inward rather than outward—provides superior strength and reliability compared to standard JIC fittings, reducing the risk of catastrophic leaks under boost or sustained load. Precision machining of both the adapter body and threaded port ensures concentricity, preventing cross-threading and ensuring consistent pressure ratings across your entire fuel or coolant circuit. This compact, lightweight fitting (0.04 lbs) minimizes system weight while maintaining full structural integrity.
Mechanics and engine builders rely on the -8AN to 5/8in-18 inverted flare adapter when upgrading fuel systems in turbocharged, supercharged, or naturally aspirated performance builds where OEM ports don't match modern -8AN hose standards. It's equally at home in custom radiator conversions, aftermarket transmission cooler installations, or brake line upgrades where legacy vehicles require adapter solutions. Proper installation demands AN-rated hose or tubing with matching flare ends and a torque wrench set to manufacturer specifications—typically 18–22 ft-lbs for AN connections—to achieve the seal without over-tightening and damaging the ferrule seat.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
