Female Union Adapter 45 45 Degree -16AN

The Female Union Adapter 45 Degree -16AN is an essential hydraulic fitting for custom fuel, oil, coolant, and brake line routing in high-performance automotive builds. Whether you're fabricating a modified engine bay, upgrading to a remote oil cooler, or integrating fuel delivery systems in a custom suspension setup, this 45-degree adapter enables clean directional changes in tight spaces where straight fittings won't work. Mechanics and fabricators rely on union adapters to create flexible, leak-free connections without requiring inline compression fittings, saving both time and money during installation.

This -16AN rated adapter handles high-flow applications typical of turbo systems, fuel injection upgrades, and performance cooling circuits. The 45-degree geometry allows hose or tube routing to angle away from engine components, radiators, or frame rails without creating stress points or kinks that restrict flow or damage hose integrity. Constructed to withstand pressure cycling and thermal cycling common in track cars and daily-driven modified vehicles, the female union design accommodates standard -16AN male ports on hoses, fittings, and component inlets. The compact profile—weighing just 0.22 lbs—keeps weight-conscious builds light while maintaining full structural integrity under boost or high-velocity fluid systems.

This adapter suits builders tackling engine swaps, turbo installations, fuel system overhauls, and custom cooling loops where factory-routed lines don't fit the modified layout. Use it to redirect -16AN hose runs around newly installed intercoolers, relocated radiators, or custom fuel rails. The 45-degree angle reduces the number of fittings needed compared to stacking 90-degree elbows, lowering restriction and vibration transmission. Installation requires standard wrench sizes and AN line-connection knowledge—torque per OEM specifications for your specific system to ensure leak-free sealing. Compatible with all standard -16AN hoses, adapters, and components across fuel, oil, coolant, and brake applications.