6AN Female Swivel To 1/4NPT Male Adapter STR

The 6AN Female Swivel to 1/4NPT Male Adapter STR from REDHORSE PERFORMANCE is an essential hydraulic and fuel line fitting for serious engine builders, fuel system tuners, and performance mechanics who demand reliable connections in custom automotive applications. This adapter bridges two industry-standard thread types—AN (Army-Navy) and NPT (National Pipe Thread)—making it indispensable for integrating aftermarket fuel systems, turbo oil lines, transmission coolers, and custom plumbing into vehicles with mixed component sources.

Built with a full 360-degree swivel design on the female 6AN end, this straight adapter eliminates stress on hose assemblies and fittings during installation and thermal cycling—critical when routing lines through tight engine bays or around exhaust headers that expand under load. The 1/4NPT male end threads directly into manifold ports, gauge blocks, or sensor bosses without requiring additional adapters, reducing leak points and simplifying system architecture. REDHORSE PERFORMANCE's precision engineering ensures tight tolerances and corrosion-resistant finish, protecting against contamination in fuel, oil, and coolant circuits where reliability cannot be compromised.

This fitting is ideal for custom fuel injection upgrades, high-boost turbo builds, and vintage-to-modern fuel system swaps where OEM manifold ports use NPT threading while aftermarket fuel rails or distribution blocks specify AN fittings. The lightweight, compact design (0.065 lbs) integrates seamlessly into space-constrained engine compartments without adding clutter. Buy this 6AN to 1/4NPT male adapter for sale online when upgrading fuel systems, oil coolers, or transmission lines—it's a must-have for any serious engine modification project demanding professional-grade hydraulic adapters.