8an Female to 10an Male Expander Fitting

The EARLS 8 AN Female to 10 AN Male Expander Fitting is a precision aluminum adapter designed for high-pressure hydraulic and fuel line systems. This straight-configuration expander coupling connects an 8 AN female swivel port to a 10 AN male port, making it essential for custom plumbing in performance automotive, aerospace, marine, and industrial hydraulic applications where size transitions are unavoidable.

Constructed from lightweight aluminum and finished in blue anodized coating, this fitting delivers corrosion resistance and durability in demanding environments. The swivel female end accommodates hose fittings with ease, while the rigid male 10 AN port integrates directly into component manifolds or block passages. At just 0.06 lbs and compact dimensions (1.65 × 1.25 × 2.8 inches), the fitting minimizes weight and clutter in tight engine bays or equipment housings. EARLS fittings are engineered to strict JIC and SAE standards, ensuring compatibility with standard hose assemblies and rated for continuous service in high-temperature, high-pressure circuits.

This expander adapter is ideal for builders and technicians transitioning between different AN port sizes without requiring complex manifold modifications. Common applications include fuel distribution systems, oil cooling circuits, transmission fluid lines, and nitrous oxide delivery systems in racing engines, as well as hydraulic control lines in industrial machinery. The blue anodized finish provides visual identification on complex plumbing harnesses while resisting oxidation in both wet marine environments and heat-stressed engine compartments.

EARLS is recognized across motorsports and aerospace for producing leak-free, precision-engineered fittings that meet or exceed OEM specifications. Each fitting is individually tested to ensure proper geometry and sealing surfaces, making this an essential component for custom systems requiring absolute reliability.