Fuel Injection Fitting 14mm-1.50 to -6

The Allstar Performance Fuel Injection Fitting 14mm-1.50 to -6 AN is a precision straight adapter designed specifically for GM TPI fuel injection systems and modern fuel line integration. This fitting provides a direct connection between 14mm x 1.50 metric male threads and -6 AN male ports, making it essential for builders converting to aftermarket fuel management systems or restoring high-performance engines that require standardized AN-line compatibility.

Manufactured from steel and finished in zinc oxide, this adapter delivers corrosion resistance and durability under fuel system pressures. The straight configuration eliminates unnecessary angles in the fuel line path, reducing turbulence and maintaining consistent flow rates through the injection system. At just 0.09 lbs and compact in profile, the fitting installs cleanly in tight engine bay spaces without requiring bulky adapter blocks. The o-ring sealing design on the 14mm male end ensures a leak-free connection at the factory injection point, while the -6 AN male outlet adapts seamlessly to braided stainless fuel lines and aftermarket fuel rails commonly found in performance and restoration builds.

This fitting is ideal for hot rodders, engine builders, and performance enthusiasts upgrading TPI-equipped vehicles with custom fuel systems. It solves the metric-to-AN transition problem without requiring multiple adapters, simplifies fuel line routing in fabrication projects, and maintains OEM return line compatibility for fuel management systems that require both supply and return plumbing. The -6 AN standard is widely recognized in the racing and custom engine community, ensuring broad availability of compatible fuel line fittings, regulators, and pressure gauges.

Allstar Performance specializes in fuel system components and adapters for street performance and competition applications. This single-unit adapter eliminates the need for stacked fittings and reduces potential leak points in the fuel system, a critical consideration for both street cars and race engines where reliability and safety are non-negotiable.