Hose Fitting #4 120 Deg Pro-Flow Black

The Hose Fitting #4 120 Deg Pro-Flow Black from FRAGOLA is a precision-engineered 4 AN hose fitting designed for high-performance fuel, coolant, and fluid systems in modified and racing vehicles. Built for builders and mechanics who demand reliability in custom plumbing applications, this 120-degree angled fitting connects 4 AN hose to 4 AN female ports with zero compromise on flow or durability. Whether you're fabricating a fuel system for a street rod, race engine, or high-output modification, this fitting integrates seamlessly into tight engine bay layouts where straight connections won't fit.

Constructed from aluminum and finished in black anodized coating, the Pro-Flow design minimizes internal turbulence and pressure drop—critical factors when running fuel injection, nitrous oxide systems, or oversized cooling circuits. The 120-degree bend geometry allows flexible routing around headers, intake manifolds, and tight chassis passages while the precision-machined female connection ensures a leak-free seal every time. FRAGOLA's 2000 Series reputation stems from mil-spec manufacturing tolerances and consistent thread engagement that professional shops and OEM suppliers trust for 40+ years.

This fitting is ideal for EFI conversions, LS engine swaps, turbocharged builds, and any custom fuel or cooling system where hose routing requires directional changes. Mechanics building carbureted restorations, drag race fuel cells, or street performance engines will appreciate the 4 AN size's compatibility with standard -4 hose and adapters. Installation is straightforward—apply thread sealant to the male port, torque to specification per FRAGOLA guidelines, and secure the hose with appropriate clamps. Weighing just 0.04 lbs and measuring compact at 1.75 x 0.85 x 4.05 inches, it adds minimal weight while solving routing challenges that compromise system integrity or appearance.