AN To NPT Straight -12 x 3/4in

The AN To NPT Straight -12 x 3/4in adapter from ALLSTAR PERFORMANCE is a precision hydraulic and pneumatic fitting designed to bridge systems using different port standards. This -12 AN (SAE Aeronautical Standard) to 3/4in NPT (National Pipe Thread) straight adapter is essential for custom fluid line installations in racing, off-road, and high-performance automotive applications where legacy NPT components must integrate with modern AN plumbing systems. Built for reliability in demanding environments, this fitting eliminates costly system redesigns by providing straightforward, leak-free connections.

Manufactured from aluminum and finished in black anodize, the AN To NPT Straight -12 x 3/4in offers corrosion resistance and durability in high-vibration engine bays and underbody installations. The black anodized surface protects against oxidation while maintaining a professional appearance in engine compartments. The straight configuration (90-degree flow path) is ideal for inline applications where space is limited or where direct port-to-port routing is required. The -12 AN port uses industry-standard JIC 37-degree flare sealing, while the 3/4in NPT male thread provides a tapered seal for secure mechanical engagement with existing NPT bosses.

This adapter is ideal for technicians upgrading fuel systems, coolant circuits, or custom brake line networks on vintage or hybrid-plumbed vehicles where mixing AN and NPT standards is unavoidable. Installation requires standard line wrenches and proper torque specifications—AN-side threads should be sealed with PTFE tape or thread sealant per system requirements. The compact 2.15 x 1.45 x 4-inch footprint allows installation in tight engine compartments common to street rods, race cars, and custom builds. For anyone standardizing mixed hydraulic systems or integrating aftermarket components, this ALLSTAR PERFORMANCE adapter ensures reliable, code-compliant connections.