Whether a builder is permanently blocking off an unused fuel pressure regulator port, or simply trying to keep dirt out of their fuel lines during a long engine swap, the Fragola -6 AN Flare Cap is a mandatory piece of hardware in any fabricator's toolbox.
Designed to thread perfectly onto any standard -6 AN male fitting, this cap utilizes a precision-machined 37-degree internal flare to create a high-pressure, metal-to-metal seal without the need for messy Teflon tape or O-rings. The "-6 AN" size is the industry standard for most automotive fuel feed and return lines, making this one of the most frequently purchased caps on the market. The stealth black anodized finish ("BL") keeps the engine bay looking clean and professional.
Key Features
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Precision 37-Degree Seal: Machined in the USA to strict aerospace tolerances, guaranteeing a fluid-tight, high-pressure seal against male AN fittings to stop fuel, oil, or nitrous leaks dead.
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Aerospace-Grade Aluminum: Extremely lightweight billet aluminum construction won't crack under torque and is impervious to harsh racing fuels like E85 and methanol.
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Black Anodized Finish: Protects the aluminum from under-hood corrosion, spilled brake fluid, and road grime while delivering the highly requested "blacked-out" aesthetic.
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Reusable Design: Can be installed and removed endlessly without degrading the sealing surface, making it perfect for temporary line-capping during winter tear-downs or permanent system reroutes.
Specifications
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Fitting Size: -6 AN
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Fitting Type: Female Cap (for Male AN fittings)
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Sealing Angle: 37-Degree Flare
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Material: Billet Aluminum
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Finish: Black Anodized
