AN Cap -12

The ALLSTAR PERFORMANCE AN Cap -12 is a precision aluminum AN-series fitting cap designed for sealing -12 AN ports in various fluid systems. This compact cap is essential for preventing fluid leakage and contamination in fuel delivery systems, engine oiling circuits, and cooling loops. It is ideal for both custom builds and upgrades in automotive applications.

Manufactured from aerospace-grade aluminum alloy, the AN Cap -12 features a -12 AN port size, which corresponds to a 1/2-inch nominal tubing diameter. This fitting threads securely onto -12 AN male ports, ensuring a sealed connection that resists loosening due to vibration and thermal cycling. Its lightweight design contributes to overall vehicle weight reduction, making it a practical choice for performance builds.

The AN Cap -12 is beneficial for fuel system builders, engine swap specialists, and vintage car restorers looking to upgrade to modern high-pressure fuel injection plumbing. It pairs directly with -12 AN hose, adapters, and manifold ports commonly found in professional fuel systems and turbo supply lines, ensuring compatibility across various applications.