Union AN Male -3

The Union AN Male -3 is a precision straight adapter fitting engineered for high-performance hydraulic and pneumatic systems where reliable fluid or air transfer is non-negotiable. Manufactured by ALLSTAR PERFORMANCE, this AN adapter is designed for technicians, mechanics, and fabricators who require a dependable connector solution in racing, automotive, and industrial applications. Whether you're building a custom fuel system, upgrading brake lines, or assembling a pressurized circuit, this fitting delivers the leak-free performance critical to safety and system integrity.

Constructed from aluminum and finished in black anodized coating, the Union AN Male -3 combines lightweight durability with superior corrosion resistance. The straight design allows direct port-to-port connection without directional offset, simplifying installation and reducing turbulence in fluid flow paths. Black anodizing not only enhances visual contrast in tight engine bays—making system identification faster—but also protects the aluminum core from oxidation and wear. The -3 AN size (3/16" hose ID equivalent) is ideal for moderate pressure applications where flow capacity and compact geometry matter equally.

This adapter excels in custom fuel, coolant, air, and brake line assemblies where OEM fittings don't fit your fabrication. It's a go-to choice for engine swaps, turbo kit installations, and race car builds where space is limited and precision counts. The male-to-male configuration allows seamless integration into existing AN hose systems, and the aluminum construction keeps total system weight low—a critical consideration in competition vehicles. Installation is straightforward: ensure both ports are clean, apply appropriate thread sealant (PTFE tape or anaerobic compound per fluid type), and torque to manufacturer specifications.