#16 Female x #10 Male Swivel Reducer

The FRAGOLA #16 Female x #10 Male Swivel Reducer is a precision hydraulic and fuel line adapter designed for builders and mechanics who demand reliable connections in custom engine bays, fuel system upgrades, and high-performance cooling loops. This reducer bridges two different AN fitting sizes, allowing you to transition from larger #16 (1.0625-inch OD) female ports to smaller #10 (5/8-inch OD) male connections without compromise.

Built from aluminum alloy, the FRAGOLA reducer balances weight savings with durability—critical when every ounce counts in competition builds or street machines running aggressive cooling setups. The swivel design permits 360-degree rotation at the connection point, eliminating the need for multiple fittings or complex routing geometry and reducing stress on hose assemblies during installation and vibration cycles.

Serious engine builders, fabricators, and weekend warriors will appreciate the precision machining that ensures leak-free performance under boost, pressure pulses, and thermal cycling that real-world engine bays deliver. This reducer is ideal for plumbing fuel injection systems, integrating custom intercoolers, or routing braided hose through tight engine compartments.