Fitting Hose End Twist- Lok # 6 Str

The Fitting Hose End Twist-Lok # 6 Str is a critical hydraulic line component engineered for high-pressure fuel, coolant, and brake system applications in performance vehicles and custom engine builds. Designed by Russell, a leader in automotive fluid management, this AN fitting serves as the bridge between flexible hose assemblies and hardline or manifold ports on your engine bay. Whether you're upgrading a fuel system on a turbo build, installing a custom cooling loop, or fabricating a complete hydraulic network, this straight hose barb fitting delivers the reliability that serious enthusiasts and professional mechanics demand.

Constructed from lightweight aluminum and finished in blue anodize for corrosion resistance, the Twist-Lok fitting features a 6 AN hose barb inlet that connects directly to -6 AN hose (3/8-inch nominal diameter) and a 6 AN female port for hardline or component attachment. The straight geometry minimizes flow turbulence and pressure drop, critical in fuel delivery and cooling circuits where efficiency directly impacts performance and engine longevity. The twist-lock design ensures secure engagement without the need for external clamps, while the barbed interior surface grips hose material with mechanical precision, resisting blowoff under sustained high-pressure cycles. At just 0.07 lbs, this compact fitting (2.8 x 1.7 x 4.95 inches) integrates seamlessly into tight engine compartments without adding bulk or weight.

This fitting is ideal for custom fuel system builders, turbocharger installation specialists, and performance cooling system fabricators who refuse to compromise on flow integrity or durability. Real-world applications include fuel surge tank return lines, coolant bypass circuits on high-output engines, vacuum and boost reference networks, and transmission cooler connections. The blue anodized finish resists fluid degradation and corrosion in harsh underbody and engine bay environments, extending service life across season-long or year-round driving. Pair this with -6 AN hose rated to your pressure requirements (typically 150–300 psi for fuel systems, higher for brake or power steering) and complementary male or female AN fittings to complete your custom plumbing network.