#10 FEMALE COUPLER TUBE STYLE BLACK

The #10 Female Coupler Tube Style Black by FRAGOLA is a precision hydraulic fitting designed for high-pressure fuel, oil, and brake system applications in performance and racing vehicles. As a mechanic working on everything from street machines to track-prepped builds, you'll recognize this as an essential component for custom fuel delivery systems, turbo setups, and remote oil cooler installations. The #10 size accommodates medium-duty flow requirements, making it ideal for carbureted engines, fuel-injected conversions, and supercharged applications where reliable pressure containment is non-negotiable.

This coupler features FRAGOLA's tube-style design, which utilizes a straightforward mechanical connection that grips the hose or tubing without requiring ferrules or complex assembly sequences—a significant advantage when you're fabricating fuel rails or intercooler plumbing in tight engine bays. The black anodized finish resists corrosion and provides a clean appearance that matches modern engine compartment aesthetics while protecting against oxidation in both dry and marine environments. The compact 2.25 x 1.25 x 4.2-inch profile and lightweight 0.11-pound construction make it easy to route lines through congested spaces, and the female coupler design accepts corresponding male connectors, allowing you to build modular, serviceable systems without permanent brazing or welding.

Technicians and enthusiasts commonly specify FRAGOLA couplers for EFI fuel system upgrades, remote-mounted fuel pump installations, and high-flow cooling applications where vibration isolation and quick-disconnect capability are paramount. The #10 size pairs seamlessly with -10 AN hose and tubing standards, ensuring compatibility with off-the-shelf braided lines, adapters, and manifold fittings from major performance suppliers. Installation is straightforward: simply slide the tubing into the coupler until it seats fully, then hand-tighten the coupler body—no special tools required, making field repairs or system modifications accessible even during event weekends.