AN to O-Ring -16 x 1 5/16-12 (-16)

The AN to O-Ring -16 x 1 5/16-12 (-16) adapter from TRIPLE X RACE COMPONENTS is a precision straight fitting designed to connect AN male threads to O-ring face seal configurations in high-pressure hydraulic and fuel systems. This black anodized aluminum adapter delivers reliable, leak-free connections in demanding racing and motorsports applications where fluid integrity is non-negotiable.

The -16 AN male inlet threads onto a 1 5/16-12 O-ring port outlet, making this fitting ideal for transitioning between legacy AN plumbing and modern O-ring boss manifolds and components. Black anodized aluminum construction provides corrosion resistance and weight savings critical in high-performance engine bays and fuel system builds. The straight configuration eliminates directional confusion during installation and minimizes turbulence in fuel or coolant flow paths.

This adapter addresses a common challenge in custom fuel system fabrication: adapting existing AN-threaded hard lines and hoses to newer O-ring boss fuel rails, carburetors, and regulators. TRIPLE X Race Components specializes in motorsports plumbing, and this fitting is engineered for vibration resistance and repeatable pressure ratings across temperature swings experienced in racing environments.

Whether assembling a fuel injection system, nitrous feed line, or coolant bypass circuit, this adapter provides the transition point needed without sacrificing thread integrity or system pressure. The compact package fits tight engine compartments while maintaining full flow characteristics.