Expander AN -12 Female to -16 Male

The Expander AN -12 Female to -16 Male fitting is a crucial adapter for high-performance fuel and fluid systems in modified vehicles, race cars, and custom engine builds. This ALLSTAR PERFORMANCE component bridges two different AN port sizes, allowing mechanics and enthusiasts to connect incompatible hose barbs, carburetors, fuel pumps, and distribution blocks with precision engineering.

The -12 to -16 AN expander features CNC-machined aluminum construction with precision-engineered female AN-12 and male AN-16 threads. This design is intended to facilitate reliable connections in high-pressure environments, making it suitable for applications where fuel delivery precision is critical.

Serious builders and tuners rely on this adapter when upgrading fuel systems on vintage muscle cars, street rods, drag cars, and modern engine swaps. Its compatibility with standard braided stainless steel lines and rubber fuel hose assemblies makes it a versatile choice for various custom plumbing needs.