Union AN Male -4

The ALLSTAR PERFORMANCE Union AN Male -4 is a precision-engineered AN adapter fitting designed for fuel, oil, and coolant systems in performance and racing applications. This straight-through union connector serves as an essential component for custom fuel system builds, engine conversions, and modified cooling circuits where reliable, leak-free connections are crucial.

Manufactured by ALLSTAR PERFORMANCE, a trusted name in motorsports and engine modification hardware, the -4 AN union features a straight-bore design that minimizes turbulence and pressure drop in flowing systems. The male threads accept standard -4 AN hose ends and adapters, while the union body itself allows clean, direct connections between two hose segments or between hose and component ports. Precision machining ensures proper sealing surfaces and thread tolerances, critical for maintaining system integrity.

Performance enthusiasts, fabricators, and mechanics rebuilding fuel systems on LS swaps, carburetor conversions, and high-flow cooling upgrades will find this AN fitting ideal for their needs. Its compatibility with various aftermarket components makes it a versatile choice for enhancing fuel delivery and cooling systems across different platforms.