Adapter Fitting Aluminum 4AN to 1/8 NPT 90 Deg

The Adapter Fitting Aluminum 4AN to 1/8 NPT 90 Deg from ALLSTAR PERFORMANCE is an essential hydraulic line connector for custom fuel systems, brake lines, and power steering installations in modified vehicles. This 90-degree adapter fitting bridges two common thread standards found throughout automotive applications, allowing you to integrate components that use different connection types without welding or custom fabrication. Whether you're building a custom fuel system for a high-performance engine swap, installing braided stainless steel lines, or modernizing a classic car's plumbing, this adapter eliminates compatibility issues and ensures leak-free connections.

Manufactured from lightweight aluminum, this fitting combines durability with weight savings—critical considerations in performance builds where every ounce counts. The 4AN port (1/4-inch SAE flange) accommodates standard braided AN hose, while the 1/8 NPT (National Pipe Thread) side connects to NPT-threaded ports found on carburetors, fuel regulators, gauges, and manifolds. The 90-degree angle design routes lines efficiently around tight engine bays and complex plumbing layouts, reducing sharp bends that weaken hoses and improving system longevity. Aluminum construction resists corrosion and maintains structural integrity across temperature extremes common in performance driving.

Mechanics and fabricators handling street rods, drag racing builds, and turbocharged engine conversions rely on ALLSTAR fittings to simplify complex fuel and fluid routing. This adapter works seamlessly with standard 4AN hose ends, Adel clamps, and NPT-threaded components across Chevrolet, Ford, Mopar, and import platforms. Installation requires no special tools beyond a wrench—thread the NPT side into your component (using thread sealant for fuel applications) and secure the 4AN hose with a standard swaged or reusable hose end. Stock this versatile fitting for your next custom fuel system, cooling system modification, or hydraulic pressure line project.