#4 T Steel

The #4 T Steel adapter tee fitting from EARLS is a precision-engineered hydraulic junction designed for high-performance fluid transfer systems in motorsports, industrial equipment, and custom applications. This three-port manifold consolidates multiple line connections into a single, compact component, eliminating bulky manifold assemblies and reducing installation complexity. Professional technicians and fabricators rely on tee fittings for fuel systems, cooling circuits, and brake line configurations where space is limited and reliability is non-negotiable.

This adapter features three equal 4 AN male ports, each accepting standard -4 AN hose fittings or hardline connections with a 37-degree JIC flare seal—the automotive industry standard for leak-free performance under pressure. The zinc-plated steel construction provides corrosion resistance in engine bays and underbody environments while maintaining full strength across typical operating pressures. The compact 1.5 x 0.55 x 3-inch footprint allows installation in tight engine compartments without sacrificing flow capacity or requiring additional adapter stacking.

Street rod builders, race car fabricators, and restoration specialists commonly use this tee fitting to split fuel supply, combine return lines, or manage coolant bypass circuits with equal distribution across all three ports. Its universal 4 AN male threads make it compatible with any standard AN hose assembly, braided steel line, or OEM-style hard tubing fitted with 37-degree flare adapters. Installation requires only standard AN wrenches—no special tools needed—making this a straightforward upgrade for DIY enthusiasts and professional shops alike.