St. #12 > 1/2 Npt Adpt.

The EARLS St. #12 > 1/2 NPT Adapter is a precision straight-port fitting designed to bridge 12 AN male connections to 1/2 inch NPT male ports. Built for hydraulic, fuel, and coolant systems in automotive, motorsport, and industrial applications, this adapter eliminates the need for custom fabrication or incompatible port combinations. Whether you're upgrading a fuel system, installing aftermarket cooling circuits, or retrofitting industrial equipment, this straightforward adapter delivers reliable port conversion in a compact, durable form factor.

Manufactured from aluminum and finished with blue anodized coating, the adapter resists corrosion while maintaining excellent weight efficiency—ideal for performance builds where every ounce matters. The blue anodize finish provides both aesthetic consistency with modern hose and fitting systems and a protective oxide layer that guards against environmental degradation. The straight configuration ensures direct, unobstructed flow without the complexity of 90-degree or 45-degree variants, reducing pressure drop and simplifying installation geometry in tight engine bays or chassis layouts.

This adapter benefits technicians and enthusiasts building custom fuel systems, turbo cooling loops, and pneumatic circuits where AN and NPT standards intersect. It's particularly valuable for those integrating aftermarket components into OEM platforms or upgrading legacy systems to modern quick-connect hydraulic standards. Ensure port cleanliness and apply appropriate thread sealant (PTFE tape or anaerobic sealant) to the NPT side before installation; the 12 AN male side accepts standard braided hose fittings or hard-line assemblies. Weighing just 0.07 lbs, it adds minimal mass while providing the reliability expected from EARLS' engineering heritage in racing and performance fluid systems.