#10 Female x #12 Male Swivel Reducer

The #10 Female x #12 Male Swivel Reducer by FRAGOLA is a precision hydraulic and fuel line adapter designed for custom automotive plumbing where component sizing mismatches require a reliable transition. Whether you're upgrading a fuel system on a modified engine, installing an aftermarket cooler, or routing custom cooling circuits on a high-performance build, this straight-port reducer allows you to connect #10 AN female ports to #12 AN male ports with zero compromise on flow integrity. Built for street rods, race cars, and serious modification projects where OEM fittings fall short of your custom requirements.

Machined from aerospace-grade aluminum and anodized in signature blue for corrosion resistance and visual identification, the #10 Female x #12 Male Swivel Reducer features a full swivel design that accommodates hose vibration and misalignment without inducing stress on adjacent fittings. The straight-port geometry ensures unrestricted flow paths—critical for fuel delivery systems and transmission cooler circuits where pressure drop directly impacts performance. The swivel female end grips securely onto #10 AN barbs or threads, while the male end threads directly into #12 AN ports, creating a leak-proof seal suitable for both low-pressure (fuel) and high-pressure (hydraulic) applications up to system limits.

This adapter is essential for engine bay restorations, fuel system upgrades, and transmission or differential cooler installations where factory and aftermarket component ports don't align. Mechanics and fabricators routinely use FRAGOLA reducers to consolidate multiple fitting sizes across a single system, eliminating the need for multiple AN standards and simplifying hose routing on tight engine bays. Weighing just 0.12 lbs and measuring 4 inches long, it installs quickly with standard AN wrenches and withstands thermal cycling and vibration inherent to modified vehicles. Sold individually for single-point repairs or bulk system builds.