6an Male to 3/8 Hose Barb Straight Black

The 6AN Male to 3/8 Hose Barb Straight Black adapter from REDHORSE PERFORMANCE is an essential fluid transfer component designed for custom fuel, coolant, and hydraulic line routing in street rods, race cars, and engine swaps. Whether you're building a fuel system from scratch, upgrading cooling capacity, or integrating modern components into a classic platform, this straight adapter provides a reliable junction point between AN-spec fittings and standard hose barbs. It's ideal for builders who demand precision plumbing without compromises.

This adapter features a 6AN male thread on one end that accepts standard -6 AN fittings and connections, paired with a 3/8-inch hose barb on the opposite end for secure, leak-free engagement with rubber or reinforced fuel hose. The straight configuration eliminates flow disruption and simplifies line routing in tight engine bays, while the black finish resists corrosion and maintains a clean appearance under the hood. REDHORSE PERFORMANCE's machined construction ensures dimensional consistency and burst-proof durability under pressure cycling, making it suitable for both carbureted and fuel-injected applications running 40+ PSI fuel systems.

Mechanics and fabricators favor this adapter for LS swaps, supercharger installations, custom cooling circuits, and fuel cell conversions where AN-spec precision meets traditional hose barb versatility. Its compact footprint (3.7 x 1.1 x 3.8 inches) fits tight spaces, and the lightweight design (0.06 lbs) adds negligible mass to plumbing runs. Use hose clamps rated for fuel service and verify hose ID compatibility with the 3/8-inch barb to ensure proper grip and pressure containment across the full operating range of your system.