12AN Tee with Female Swivel on Run Black

The 12AN Tee with Female Swivel on Run Black from REDHORSE PERFORMANCE is an essential hydraulic fluid manifold component for serious automotive enthusiasts building or modifying high-performance fuel and coolant systems. This precision-engineered tee fitting allows three-way flow distribution in confined engine bay layouts where space demands intelligent plumbing solutions. Whether you're designing a custom fuel rail system, upgrading your cooling circuit, or integrating remote fluid reservoirs, this manifold tee simplifies complex routing while maintaining structural integrity under pressure.

Built to REDHORSE PERFORMANCE standards, the 12AN tee features a female swivel connection on the run (the inline pass-through leg), which allows rotational adjustment without disconnecting hoses—a practical advantage when fine-tuning hose angles during installation or maintenance. The black anodized aluminum construction resists corrosion and heat transfer, while the AN12 (3/4-inch) bore accommodates high-flow applications typical of turbocharged, supercharged, or naturally aspirated builds requiring robust fuel delivery or enhanced cooling capacity. Swivel fittings distribute vibration loads more evenly than fixed connections, reducing fatigue-related leaks and extending system lifespan in aggressive driving conditions.

This tee serves custom fuel system builders, LSx engine swappers, and street rodders who demand reliable, adjustable flow control without sacrificing compact packaging. The swivel-on-run design proves invaluable when space constraints or existing bracket locations force non-linear hose routing; the female port accepts standard 12AN barbed hose fittings or male AN adapters, ensuring compatibility with industry-standard braided stainless lines. Installation requires careful line pressure consideration and thread-seal compound (PTFE tape or AN thread sealant); always verify your system's working pressure rating and confirm all connections are torqued to manufacturer specs for leak-free performance at operating temperature.