Hose Fitting #4 45 Deg Pro-Flow Black

The Hose Fitting #4 45 Deg Pro-Flow Black from FRAGOLA is a precision-engineered hydraulic and fuel line connector designed for high-performance automotive, motorsport, and industrial fluid transfer applications. Built for systems requiring reliable, leak-free connections under demanding conditions, this 45-degree fitting serves as the critical link between hoses and components in racing engines, custom fuel systems, and transmission cooler setups. The 45-degree angle orientation allows for space-efficient routing in tight engine bays and complex plumbing layouts where straight fittings would create clearance conflicts.

Constructed from aluminum and finished in black anodized coating, this fitting combines lightweight construction with superior corrosion resistance and professional aesthetics. The Pro-Flow design from FRAGOLA's 2000 Series features optimized internal passages that minimize turbulence and pressure loss, critical factors in fuel delivery and cooling system efficiency. The 4 AN (AN4) size accommodates standard -4 hose and -4 female ports, making it compatible with industry-standard hydraulic and fuel line ecosystems. The 45-degree configuration and aluminum composition keep component weight minimal—important in performance vehicles where every pound affects acceleration and handling.

Ideal for custom fuel system builders, race teams, and enthusiasts upgrading fuel delivery or cooling circuits, this fitting integrates seamlessly into -4 AN hose assemblies. Installation requires proper hose-end crimping equipment and torque specifications to achieve reliable sealing. The black anodized finish provides both corrosion protection and a professional appearance, making it suitable for visible engine bay applications. Whether supporting a fuel injection upgrade, turbo cooler loop, or transmission cooling system, the Hose Fitting #4 45 Deg Pro-Flow Black delivers the durability and performance expected in competitive and high-reliability automotive environments.