AN Union 90 Degree #4 x #4

The AN Union 90 Degree #4 x #4 fitting from Triple X Race Components is a critical fluid distribution component engineered for high-performance automotive and racing applications. This 90-degree AN union connector joins two #4 AN hose lines at a right angle, making it indispensable for fuel delivery systems, oil cooling circuits, and hydraulic brake lines where space constraints or routing efficiency demand a compact elbow joint. Whether you're building a street rod, race engine bay, or upgrading a performance fuel system, this fitting ensures clean, leak-free connections in demanding environments.

Triple X Race Components manufactures this union to AN (Army-Navy) specification standards, guaranteeing precise thread geometry and flange sealing surfaces that eliminate pressure loss and fluid weeping at critical junction points. The #4 AN designation corresponds to a 1/4-inch nominal bore, sized for moderate to high-flow applications without excessive restriction. The 90-degree angle geometry allows you to redirect fluid flow while maintaining structural integrity and minimizing turbulence—essential when routing fuel, coolant, or oil around tight engine compartment layouts. Lightweight aluminum construction keeps total system weight low while delivering the strength needed for boost pressure and high-temperature service.

This AN Union 90 Degree #4 x #4 fitting is ideal for fabricators, race teams, and serious enthusiasts building custom fuel systems, engine swaps, or competition-grade cooling circuits. It pairs seamlessly with standard AN hose ends, adapters, and manifolds, making integration straightforward whether you're working on a carbureted classic or a turbocharged modern platform. Installation requires only a 5/8-inch wrench on the union body and proper thread-sealing compound on the male AN threads—no special tools necessary. Its compact 2 x 0.5 x 2.8-inch footprint fits tight spaces where traditional tee or cross fittings cannot, and its proven reliability in high-pressure racing environments makes it a trusted choice across the performance automotive community.