#6 to #8 Str Stl Push-On

The #6 to #8 Straight Steel Push-On hose fitting is a critical adapter for high-performance fuel, oil, and coolant systems in engine builds and custom vehicle modifications. Designed for mechanics and enthusiasts who demand reliability under pressure, this push-on fitting bridges two different AN (Army-Navy) hose sizes—a common requirement when integrating aftermarket fuel rails, turbo coolers, or auxiliary cooling systems into existing plumbing. Whether you're upgrading carburetor feed lines, installing a fuel cell, or adapting OEM components to modern performance standards, this fitting eliminates the need for custom fabrication and potential leak points.

Constructed from brass with a push-on barb design, the #6 to #8 fitting features a #6 AN hose barb inlet paired with an #8 AN female outlet, allowing seamless connection between undersized and standard-gauge fuel or coolant hoses without reducers or welded adapters. The barbed design creates a positive mechanical grip when hose is forced over the barb, combined with hose clamps for redundant safety—critical in pressurized systems where vibration and heat cycling can compromise fittings over time. Brass material provides excellent corrosion resistance in wet engine bays and compatibility with gasoline, diesel, and coolant fluids, while the straight configuration minimizes turbulence and pressure drop compared to 45° or 90° alternatives. The compact 2.75 x 1.25 x 4 inch profile and lightweight 0.12 lbs construction make installation straightforward in tight underhood spaces.

Mechanics and fabricators routinely specify this fitting for fuel system upgrades, turbocharger intercooler installations, and custom radiator hose transitions where stock connectors don't align with performance plumbing layouts. Use with quality fuel line hose rated for your system pressure—typically -6 AN for standard carb fuel and -8 AN for EFI systems running 40+ PSI—and secure both ends with stainless steel hose clamps. Verify hose wall thickness and barb compatibility before assembly; barbed fittings perform best with reinforced hose capable of resisting puncture. A single unit ships ready to install, making it ideal for one-off repairs or complete fuel cell conversions where off-the-shelf harnesses fall short.