AN to O-Ring -10 x 1 1/16-12 (-12)

The AN to O-Ring -10 x 1 1/16-12 (-12) from Triple X Race Components is a precision straight adapter fitting engineered for high-performance hydraulic and fuel system applications. This fitting bridges two different AN port sizes—10 AN male inlet to 12 AN male O-ring outlet—making it essential for custom fuel delivery systems, race car plumbing, and aftermarket performance builds where port compatibility demands a reliable transition. Mechanics, fabricators, and motorsports enthusiasts rely on adapters like this to maintain system integrity without leaks or pressure loss.

Constructed from aluminum and finished in black anodize, the AN to O-Ring adapter combines lightweight construction with corrosion resistance and durability in harsh engine bay environments. The straight-port design eliminates turbulence and pressure drops, critical in fuel-injected systems and forced-induction applications where flow consistency is non-negotiable. The O-ring seal design—specifically the 12 AN O-ring port—ensures a leak-free connection under vibration and thermal cycling, outperforming traditional flare fittings in reliability and ease of assembly. Aluminum construction keeps overall system weight minimal while the black anodized finish resists oxidation and provides professional aesthetics.

This adapter is ideal for custom fuel system builders working with mixed AN port configurations on turbocharged, supercharged, or carbureted engines. It fits seamlessly into fuel rails, return lines, and surge tank plumbing where port size transitions are unavoidable. Installation is straightforward—hand-tightened with a wrench for final adjustment—and the compact footprint (2.1 x 1.6 x 3.5 inches) allows placement in tight engine compartments. Whether upgrading a vintage hot rod fuel system or assembling a modern race car fuel setup, this fitting ensures compatibility without compromise to flow or safety.