AN Tee -3 with 1/8 NPT on Branch

The AN Tee -3 with 1/8 NPT on Branch is a precision adapter fitting designed for high-pressure fluid and pneumatic systems where branching connections are required. This tee-style connector allows three simultaneous ports from a single junction point, making it essential for hydraulic brake systems, fuel delivery networks, and air suspension setups in custom vehicles and high-performance applications. Built by ALLSTAR PERFORMANCE, a trusted name in automotive fluid management, this fitting bridges between AN (Army Navy) standard ports and NPT (National Pipe Thread) connections—a critical requirement when mixing component families or retrofitting systems.

Constructed from lightweight aluminum and finished in black anodize, the AN Tee -3 combines corrosion resistance with weight efficiency—vital for racing and off-road environments. The -3 designation indicates 3/8-inch AN ports on both the main and branch lines, while the 1/8 NPT male branch accommodates smaller gauge pneumatic or secondary fuel circuits. The black anodized coating protects against oxidation and abrasion while providing a professional appearance in engine bays and suspension assemblies. At just 0.04 lbs, this compact 3.55 x 0.45 x 4.55 inch adapter minimizes bulk without sacrificing structural integrity or flow capacity.

Technicians and builders who are upgrading fuel systems, installing custom brake lines, or configuring multi-circuit pneumatic suspensions depend on this adapter to create clean, secure junctions without leakage. The dual -3 AN ports enable straightforward integration into existing -3 hose assemblies, while the NPT branch port accepts standard 1/8-inch NPT male fittings, gauges, or valve inlets. Installation is straightforward using AN hose fittings and wrench-friendly geometry; ensure proper thread sealant on NPT connections to prevent weeping. This fitting is ideal for street rods, race cars, custom trucks, and off-road platforms where reliability under vibration and thermal cycling is non-negotiable.