4AN/JIC Swivel Coupler Black

The 4AN/JIC Swivel Coupler Black from REDHORSE PERFORMANCE is a precision hydraulic and pneumatic adapter designed for high-performance fluid transfer applications in racing, industrial, and tactical equipment systems. This straight-fitting coupler connects two 4 AN (dash-4) female ports, making it essential for builders who need reliable, leak-free connections in custom fuel systems, brake lines, air suspension setups, and pressurized fluid networks. The swivel design allows for precise angular alignment during installation, reducing stress on connected hoses and fittings while maintaining full flow integrity.

Constructed from aluminum with black anodized finish, this adapter delivers both corrosion resistance and a professional appearance across demanding environments. The 4 AN/JIC (AN = Army-Navy standard; JIC = Joint Industry Council) designation ensures compatibility with industry-standard hose fittings and quick-disconnect systems commonly found in motorsports and military applications. Black anodizing provides a protective oxide layer that resists oxidation, salt spray, and fluid degradation, extending the coupler's service life in harsh conditions. The compact design—measuring 2.75 inches in length with minimal profile—allows installation in tight engine bays and confined spaces without compromising flow or structural integrity.

This swivel coupler is ideal for performance enthusiasts, custom fabricators, and systems integrators working with fuel injection, cooling loops, air systems, and brake assemblies. The female-to-female configuration works seamlessly with existing 4 AN male adapters, making it a versatile connector for modular system builds. Installation requires no special tools—hand-tightening with a wrench ensures proper seal without over-torquing. Buyers should verify compatibility with their specific hose crimps and adapters, as JIC standards require matching thread pitch and port geometry for optimal performance and safety.