8AN to8AN Flare Union AN/AN

The 8AN to 8AN Flare Union AN/AN from REDHORSE PERFORMANCE is a precision hydraulic adapter engineered for high-performance fuel, oil, and coolant system applications in modified and racing vehicles. This union connector serves as the backbone of custom fuel lines, turbo setups, and upgraded cooling systems where reliability under pressure is non-negotiable. Whether you're building a street machine, track car, or engine swap project, this flare union ensures leak-free connections in demanding environments where stock plumbing simply won't cut it.

Manufactured to AN (Army/Navy) specification standards, the 8AN to 8AN flare union features dual -8 ports with 37-degree flare geometry that creates a metal-to-metal seal unaffected by vibration or thermal cycling. REDHORSE PERFORMANCE constructs this adapter from premium aluminum alloy, reducing weight while maintaining structural integrity across temperature and pressure ranges typical of forced induction and high-flow fuel delivery systems. The compact 2.8 x 1.15 x 3.8 inch footprint and featherweight 0.08 lbs design integrate seamlessly into tight engine bays without sacrificing flow capacity or durability, making it ideal for custom fabrication work where space and weight matter.

Serious enthusiasts and professional engine builders rely on this union for turbo systems, nitrous oxide plumbing, fuel rail upgrades, and custom cooling lines. Installation requires standard AN hose or hardline fittings crimped or swaged to -8 specifications; this adapter connects two matching lines without reducing diameter, preserving system flow and pressure ratings. Verify your hose sizing and flare tool compatibility before assembly—AN fittings are industry-standard across performance applications, ensuring this union fits seamlessly into whatever custom circuit you're engineering.