#12 Female To #10 Male Flare Reducer Fitting

The #12 Female to #10 Male Flare Reducer Fitting is a crucial hydraulic and fuel system adapter designed for custom automotive builds, fuel system upgrades, and high-performance modifications where line size compatibility is essential. This fitting is particularly useful for fabricating custom fuel delivery systems, upgrading brake lines, or adapting existing hose assemblies to different port configurations.

Constructed by EARLS, a trusted name in performance plumbing, this fitting ensures leak-free, secure connections in demanding engine bay environments. It features SAE flare threads on both ends, with the larger #12 female port accepting incoming hose assemblies and the smaller #10 male port connecting to receiving components or manifolds. The flare design creates a metal-to-metal seal that withstands vibration, pressure spikes, and thermal cycling without relying on thread sealants.

Mechanics and fabricators rely on EARLS fittings for street rods, race cars, LS swaps, and vintage restorations where factory line routing doesn't accommodate modern component sizing. The #12 to #10 reducer is particularly valuable when adapting to different port configurations in tight engine compartments, integrating seamlessly without adding bulk or weight penalty to your build.