6AN Swivel Hose Ends Clear STR

The 6AN Swivel Hose Ends Clear STR by Redhorse Performance is an essential fitting for any serious fuel system, coolant line, or hydraulic brake upgrade on high-performance vehicles. Whether you're building a custom fuel cell setup, installing a turbo cooling circuit, or upgrading your braking system, these straight swivel hose ends provide the precise connection your modified engine demands. The clear finish allows you to visually inspect fluid flow and detect contamination or air bubbles—critical when you're running lean fuel maps or pushing boost levels that leave zero margin for error.

Built from durable aluminum with a full 360-degree swivel design, these 6AN fittings eliminate hose kinking and reduce stress on connection points during engine vibration and thermal cycling. The swivel feature is non-negotiable in tight engine bays where hose routing requires sharp angles—it absorbs lateral movement that would otherwise fatigue rigid fittings and cause leaks under boost or high coolant temperatures. The straight (STR) configuration makes these ideal for direct-line runs where you need minimal obstruction, and the -6 designation means these fittings accept 3/8-inch hose tubing, the industry standard for serious fuel and coolant applications on LS engines, small-block Chevys, and forced-induction platforms.

Mechanics and engine builders favor Redhorse Performance fittings for street builds, circle-track competition, and drag racing applications where reliability under pressure is non-negotiable. These hose ends pair seamlessly with braided stainless steel lines and -6 adapter fittings in fuel injection conversions, remote oil filter relocations, and intercooler plumbing setups. The lightweight design (0.09 lbs) means zero unsprung weight penalty, and the clear housing integrates cleanly into visible engine bays where aesthetics matter alongside function. Install these with quality hose clamps rated for your pressure range, and you'll have a leak-free system that handles both street driving and sustained track duty.