AN Tee -3 with 1/8 NPT on Run

The AN Tee -3 with 1/8 NPT on Run from Allstar Performance is a precision hydraulic and fuel line fitting engineered for custom engine builds, fuel system upgrades, and complex plumbing configurations. Built for serious automotive enthusiasts and professional mechanics who demand reliability in high-performance applications, this tee fitting enables flexible routing of fuel, oil, or coolant lines where space or design constraints require unconventional connections. The combination of AN thread on the main body and NPT (National Pipe Thread) on the branch port makes this fitting invaluable for adapting between different threading standards commonly found in performance engine compartments.

Constructed from aluminum alloy with precision-machined internal passages, the AN Tee -3 with 1/8 NPT on Run minimizes turbulence and pressure loss while maintaining structural integrity under dynamic engine bay conditions. The -3 size designation indicates compatibility with standard -3 AN hose and fittings (3/16-inch internal diameter), delivering adequate flow for fuel distribution, gauge feeds, or coolant bypass circuits without sacrificing response time. The 1/8 NPT female port on the branch accommodates standard NPT-threaded sensors, pressure gauges, or adapter fittings, allowing seamless integration with factory and aftermarket components that use pipe thread specifications. Allstar's quality control ensures consistent thread fitment and leak-free performance across temperature cycles and vibration exposure typical of track and street applications.

This fitting is ideal for fuel system customization in LS swap projects, carburetor conversions, and EFI retrofits where existing line routes conflict with modern hardware placement. Professional tuners and engine builders rely on the AN Tee -3 with 1/8 NPT on Run to simplify complex plumbing without sacrificing system pressure or reliability. Installation requires only standard wrenches and AN-compatible hose preparation, making it accessible for both garage and shop environments. Compatible with all standard -3 AN hose assemblies and NPT-threaded accessories, this fitting pairs seamlessly with fuel filters, pressure regulators, and gauge taps in circuits operating between 0 and 100+ PSI, depending on component ratings.