Straight Adapter Fitting ; Size: -20AN x 1in NPT

The Vibrant Performance Straight Adapter Fitting in -20AN x 1in NPT is a precision hose coupling component engineered for high-performance fuel, oil, and coolant systems in automotive and motorsport applications. This adapter bridges AN (Army-Navy) metric hose standards with traditional NPT (National Pipe Thread) ports, making it essential for builders integrating modern aftermarket components into vehicles with factory NPT-threaded ports. The straight design eliminates directional complexity, simplifying installation while maintaining optimal flow path geometry.

Manufactured from aluminum and finished in black anodized coating, this adapter provides corrosion resistance and lightweight durability critical in engine bays and under-vehicle environments. The -20AN male connection accommodates standard -20AN hose sizes (1.25 inches nominal ID), while the 1-inch NPT male thread accepts factory-spec NPT ports without modification. Black anodizing protects against oxidation and provides a professional appearance, while aluminum construction minimizes weight—critical in race and performance builds where every fraction of a pound impacts performance. The straight configuration eliminates elbows, reducing turbulence and pressure drop in fuel delivery and cooling circuits.

This adapter suits engine builders, performance technicians, and automotive enthusiasts upgrading cooling systems, fuel systems, or oil circuits where AN-standard braided hose meets NPT factory ports. It performs reliably in street, track, and high-boost applications where traditional rubber hose fails. Proper thread-sealant application and hose crimping ensure leak-free operation under pressure; compatibility depends on verifying both the NPT port size (1-inch) on the vehicle or component and -20AN hose assembly specifications before purchase.