6AN Male to 3/8in Tube Adapter Clear

The 6AN Male to 3/8in Tube Adapter Clear from REDHORSE PERFORMANCE is a precision hose adapter engineered for custom fuel system builds, brake line relocations, and coolant loop modifications in high-performance vehicles. This adapter bridges the gap between AN-style braided hose fittings and conventional 3/8-inch tube, making it essential for builders who blend aftermarket fuel rails, custom manifold cooling systems, or relocated brake reservoirs with OEM or chassis-mounted hardline tubing. Whether you're plumbing a turbo intercooler circuit, rerouting fuel return lines, or installing a secondary catch-can system, this adapter provides a clean, leak-free transition point without requiring expensive custom fabrication.

The clear anodized finish protects against corrosion while allowing visual inspection of fluid flow and potential contamination inside the fitting—a critical safety feature for fuel and coolant systems. The male AN connection uses industry-standard 37-degree JIC flare sealing, which creates a metal-to-metal cone seal that tightens under pressure and resists vibration loosening common in engine bays and suspension-mounted components. The 3/8-inch tube end accepts both compression fittings and brazed connections, offering installation flexibility; many builders prefer compression for serviceability or braze for permanent applications in confined spaces like custom exhaust plenums or intake manifold housings.

LS platform conversions, drift builds, and street-strip vehicles rely on this adapter to integrate aftermarket fuel system components into stock or custom hardline routing without sacrificing structural integrity or thermal stability. The compact 2.85-inch length and lightweight 0.075 lb design minimize dead space in engine compartments and complex manifold areas where space is at a premium. Compatibility extends across any application using 6AN hose fittings paired with 3/8-inch hardline tubing—common in fuel delivery, boost intercooling, and remote-mounted brake bias valve configurations where vibration resistance and pressure reliability are non-negotiable.