90 Degree Adapter Fittin g -12 AN to 1/2in NTP

The 90 Degree Adapter Fitting - 12 AN to 1/2in NPT from Vibrant Performance is a critical component for custom fuel, oil, and coolant line plumbing in high-performance engine builds. This adapter bridges the gap between 12 AN hose fittings and standard 1/2-inch NPT (National Pipe Taper) ports commonly found on engine blocks, radiators, and accessory manifolds. Whether you're converting a carbureted engine to fuel injection, upgrading to a remote oil cooler, or fabricating a custom cooling system, this 90-degree elbow fitting ensures leak-free, precise connections where space constraints demand an angled approach.

Manufactured by Vibrant Performance, a trusted name in motorsport fluid routing, this adapter features a robust aluminum or steel construction designed to handle sustained pressure in both fuel and oil systems. The 90-degree angle eliminates the need for additional hose bends, reducing turbulence and potential weak points in your line run while improving engine bay organization. The 12 AN port accommodates standard braided hose with crimp fittings, while the 1/2-inch NPT male end threads directly into cast iron or aluminum ports with no additional adapters required, providing a streamlined, factory-quality installation.

Motorsports enthusiasts and engine builders rely on this fitting for fuel system upgrades, turbocharger oil supply lines, remote filter mounts, and thermostat housing modifications. The compact 90-degree design is ideal for tight engine bay layouts where straight adapters would create unwieldy hose runs or interference with headers, belts, and accessories. Installation is straightforward—thread the NPT end into your port (use thread sealant tape for leak prevention) and attach your 12 AN hose with a crimp fitting. This adapter pairs seamlessly with any premium braided hose system and is essential for builders pursuing custom fuel delivery, auxiliary cooling, or modern EFI retrofits on classic and contemporary platforms alike.