#8 Female Swivel to 1/4mpt Fitting

The #8 Female Swivel to 1/4mpt Fitting (Fragola MPN 499307) is a critical adapter for custom fuel, coolant, and hydraulic lines in performance and modified vehicles. Built by Fragola—a trusted name in automotive plumbing for street rods, race cars, and engine swaps—this straight adapter bridges AN fittings to NPT ports, eliminating the need for custom hose fabrication or improvised connections that compromise reliability and appearance.

Constructed from aluminum and finished in blue anodized coating, the #8 Female Swivel to 1/4mpt Fitting delivers corrosion resistance and a clean, professional look under the hood. The #8 AN female swivel end accepts standard -8 hoses and fittings, while the 1/4-inch NPT male end threads directly into factory or aftermarket components without adapters or reducers. The swivel design allows a full 360-degree rotation, simplifying installation in tight engine bays and preventing line kinking—a feature essential when routing hoses around headers, superchargers, or custom intake manifolds.

This fitting is indispensable for mechanics and enthusiasts upgrading fuel pressure systems, adding external coolers, or repositioning stock ports during engine builds and swaps. Weighing just 0.06 lbs and compact at 1.5 x 1.3 x 4.15 inches, it fits in confined spaces without adding bulk. Compatible with AN braided hose and all standard NPT-threaded ports, the #8 Female Swivel to 1/4mpt Fitting is a durable, corrosion-resistant solution for reliability-focused builds where proper plumbing eliminates leaks and pressure drops.