Swivel Union Female -8 to Female -10

The Swivel Union Female -8 to Female -10 adapter by ALLSTAR PERFORMANCE is an essential fluid coupling component for serious engine builders and custom fuel system fabricators. This adapter serves as a critical transition fitting in high-performance fuel, oil, coolant, and brake line applications where directional flexibility and secure connections are non-negotiable.

The -8 to -10 size designation refers to AN (Army-Navy) dash sizes, with the female threads on both ends accepting standard -8 and -10 male AN fittings respectively. The swivel design allows up to 360 degrees of rotational freedom, eliminating the need for double wrench techniques during installation and reducing stress on adjacent fittings—a feature that prevents costly leaks and damage to nearby components. This compact adapter weighs just 0.08 lbs and measures 4.05 inches in length, making it ideal for tight engine compartments where space is limited and weight matters.

Mechanics and fabricators routinely choose this swivel union for its mechanical reliability and precision-machined threads that ensure leak-free performance under pressure. It is suitable for a variety of applications, including fuel systems, coolant lines, oil cooling, and brake systems, making it a versatile choice for automotive enthusiasts and professionals alike.