AN To NPT 90 Degree -10 x 3/4in

The AN to NPT 90 Degree -10 x 3/4in adapter from ALLSTAR PERFORMANCE is a precision fluid-line connector designed for high-pressure hydraulic and fuel systems requiring a 90-degree directional change. This fitting bridges AN (Army-Navy) male threads to NPT (National Pipe Thread) male ports, making it essential for custom fluid routing in performance engines, racing applications, and specialty automotive builds. The 90-degree configuration allows installers to navigate tight engine bays and complex plumbing layouts without running long, inefficient hose runs.

Constructed from aluminum and finished in black anodize, this adapter combines lightweight durability with corrosion resistance—critical properties for underhood environments and fuel systems exposed to moisture and thermal cycling. The -10 AN size (5/8-inch diameter) accommodates substantial flow rates while the 3/4-inch NPT male thread ensures a secure, leak-free seal when mated to standard NPT ports. Black anodizing protects the aluminum substrate from oxidation and provides a professional appearance while maintaining dimensional stability across temperature extremes common in engine compartments.

This fitting benefits engine builders, performance shops, and enthusiasts assembling custom fuel delivery systems, turbo coolant lines, and transmission cooler circuits. Installation requires basic thread-sealant application and standard wrenching—the compact 2.2 x 1.45 x 4.05-inch footprint fits confined spaces where bulkier fittings cannot. Verify that your system's working pressure, fluid type, and port orientation align with NPT compatibility, and always apply appropriate thread sealant to ensure lasting integrity.