AN to O-Ring -8 x 9/16-18 (-6)

The AN to O-Ring -8 x 9/16-18 (-6) adapter from Triple X Race Components is a straight-port hydraulic and pneumatic fitting designed to bridge between 8 AN (AN8) male connections and 6 AN (AN6) male O-ring face seal ports. This adapter is essential for high-performance fuel systems, coolant lines, and pressurized applications where precise port sizing and reliable sealing are non-negotiable. Whether you're building a custom race engine, modifying a fuel delivery system, or integrating aftermarket hydraulic components, this fitting solves the common problem of incompatible line sizes without requiring costly system redesign.

Manufactured from aluminum and finished in black anodize, the AN to O-Ring -8 x 9/16-18 (-6) adapter combines lightweight construction with corrosion resistance and professional aesthetics. The straight design eliminates turbulence and pressure drop associated with 90-degree configurations, making it ideal for applications where flow efficiency matters. The O-ring face seal design—indicated by the 9/16-18 thread specification—provides superior leak prevention compared to traditional NPT or JIC fittings, particularly under vibration and thermal cycling. Black anodizing not only protects the aluminum core from oxidation but also maintains a clean appearance in engine bays and fluid systems.

This adapter is ideal for motorsports enthusiasts, fabricators, and technicians working on fuel injection systems, forced induction cooling lines, transmission coolers, and custom hydraulic circuits. The compact footprint (1.9 x 1 x 2.7 inches) and minimal weight (0.03 lbs) make it suitable for space-constrained engine compartments and weight-critical builds. Installation requires standard AN wrenches and basic hose assembly knowledge; ensure proper O-ring seating and torque specifications per industry standards for your specific application pressure rating. Compatible with all standard AN8 male and AN6 male O-ring ports found on fuel rails, coolers, filter housings, and aftermarket manifolds.