90 Degree Fitting Tight Radius -4AN for PTFE

The 90 Degree Fitting Tight Radius -4AN for PTFE from Vibrant Performance is an essential fluid management component for serious automotive enthusiasts and mechanics building high-performance fuel systems, coolant loops, and brake lines. This precision-engineered fitting addresses the critical need for compact, reliable connections in tight engine bays and custom fabrication projects where space is at a premium. Whether you're tuning a turbocharged engine, upgrading fuel delivery, or designing a custom cooling circuit, this tight-radius elbow delivers the directional control and flow integrity that separates professional builds from amateur installations.

Constructed to work seamlessly with PTFE (Teflon) hose assemblies, this -4AN (1/4-inch nominal) 90-degree fitting features a tight radius bend geometry that minimizes flow restriction and reduces turbulence compared to standard long-radius designs. The compact footprint allows you to navigate around headers, intake manifolds, and firewall obstructions without compromising line routing or requiring costly plumbing rework. Vibrant Performance's manufacturing tolerances ensure consistent thread engagement and leak-free performance under high-pressure applications, critical when handling fuel injection pressures, high-temperature coolant, or precision brake fluid delivery.

Builders of LS-swapped vehicles, import turbocharged platforms, and custom fuel cell installations rely on tight-radius fittings to execute clean, space-efficient plumbing runs that maintain OEM-quality reliability. This fitting is ideal for anyone fabricating custom fuel rails, intercooler piping, transmission cooler circuits, or engine bay coolant redistributions where every millimeter of clearance matters. Pair it with corresponding -4AN PTFE hose and companion fittings to complete professional-grade fluid systems that perform consistently across street, strip, and track applications. Weighing just 0.05 lbs, it adds negligible mass while delivering dependable directional change for years of service.