Straight Adapter Fitting ; Size: -8AN x 3/8in NPT

The Vibrant Performance straight adapter fitting -8AN x 3/8in NPT is a precision hydraulic connector engineered for fluid system applications requiring reliable AN to NPT port conversion. This adapter bridges AN (Army-Navy) bulkhead fittings with standard National Pipe Thread (NPT) ports, making it essential for custom fuel systems, coolant lines, and high-pressure hydraulic assemblies where port compatibility differs between components. Designed for professionals and enthusiasts building race engines, custom hot rods, or performance cooling systems, this fitting eliminates the need for costly component modifications.

Constructed from black anodized aluminum, the straight adapter fitting delivers corrosion resistance and lightweight durability across demanding automotive and marine applications. The anodized finish protects against oxidation while maintaining a professional appearance in visible engine bay installations. The -8AN male connection accepts standard -8 hose barbs and compression fittings, while the 3/8in NPT male port threads directly into female NPT receivers with standard wrench compatibility. This straight-through design eliminates flow restrictions and pressure drops common to elbow or offset adapters, making it ideal for fuel delivery, intercooler coolant circuits, and auxiliary cooling systems where maximum flow efficiency matters.

Performance builders, engine shops, and aftermarket tuners rely on Vibrant Performance fittings for bolt-on compatibility with OEM and custom manifolds. The adapter suits turbocharged cooling loops, fuel cell installations, and remote oil cooler setups where AN hose routing meets NPT port requirements. Installation requires standard SAE wrenches; thread-locking compound and proper torque application ensure vibration-proof sealing. Verify port thread gender (male NPT thread) and hose sizing (-8AN equals 1/2-inch hose ID) before installation for leak-free performance.