Female Union Adapter 90 90 Degree -16AN

The Female Union Adapter 90 90 Degree -16AN by Vibrant Performance is a precision hose coupling component designed for high-flow fuel, coolant, and transmission fluid systems in performance and custom automotive builds. This adapter solves a critical plumbing challenge: connecting two -16AN female ports at dual 90-degree angles without requiring bulky elbows or multiple fittings. Whether you're routing lines around tight engine bays, custom intake manifolds, or intercooler installations, this union adapter eliminates unnecessary length and potential leak points inherent in traditional multi-fitting assemblies.

Manufactured by Vibrant Performance, a leader in motorsport-grade hose and fitting systems, this adapter features forged aluminum construction that balances strength with weight savings—critical in race and high-performance applications. The dual 90-degree geometry allows you to change flow direction twice in a compact footprint, reducing overall plumbing complexity and vibration-induced fatigue at connection points. The -16AN female thread specification accommodates standard AN hose crimps and male fittings, maintaining system integrity under boost, elevated fuel pressure, and thermal cycling that street and track vehicles endure.

Professional builders and DIY enthusiasts benefit most from this adapter when fabricating custom fuel delivery systems, upgrading turbocharger plumbing, or relocating radiator and coolant lines in engine conversions. Installation is straightforward: thread the female ports into your existing -16AN male fittings or hose ends, apply PTFE tape to prevent weeping at high pressure, and torque to manufacturer specifications. Verify clearance in tight spaces before final assembly, as the compact 90/90 geometry still requires adequate wrench access. This fitting is compatible with any -16AN hose assembly, from braided stainless steel to silicone, making it a versatile choice for LS swaps, fuel system upgrades, and custom cooling loops.