AN to NPT Straight #10 x 3/4

The AN to NPT Straight #10 x 3/4 fitting from TRIPLE X RACE COMPONENTS is a precision hydraulic adapter engineered for custom fuel, coolant, and brake line systems in high-performance automotive builds. This straight connector bridges AN (Army-Navy) and NPT (National Pipe Thread) standards, making it essential for engine modifications where factory hardlines don't match aftermarket fuel injection systems, turbo intercoolers, or custom cooling circuits. Whether you're fabricating a street rod fuel system or upgrading a race engine's hydraulic delivery architecture, this fitting eliminates the guesswork of mismatched thread types.

The #10 AN size accommodates medium-flow applications typical of small-block and mid-size engine conversions, while the 3/4-inch NPT port integrates seamlessly into standard block fittings, manifold ports, or aftermarket aluminum components. TRIPLE X RACE COMPONENTS manufactures this adapter to withstand high-pressure cycles—critical for fuel systems running carburetor floats above 7 psi or EFI injector rails at 40–60 psi. The straight configuration (90-degree elbows available separately) minimizes turbulence and pressure drop, preserving fuel atomization and cooling efficiency. Compact dimensions (2.3 x 1.25 x 3.35 inches) and lightweight construction (0.09 lbs) ensure tight engine bay routing without bulk.

This fitting is indispensable for fabricators upgrading LS swaps, 5.0 Coyote builds, or classic muscle car restorations where modern fuel systems demand hybrid adapter solutions. Mechanics installing turbocharger coolant lines or custom transmission coolers benefit from the NPT thread's sealing reliability and availability in standard pipe fittings networks. Use thread sealant (PTFE tape or anaerobic compound) on the NPT side to ensure leak-free operation under vibration and thermal cycling. Pair with matching AN hoses and swaged fittings for a cohesive, professional-grade hydraulic circuit.