#4 45-Deg Crimp Hose Fitting

The FRAGOLA #4 45-Degree Crimp Hose Fitting is a precision-engineered hydraulic connector designed for high-performance fuel, coolant, and brake system applications in race cars, hot rods, and modern performance builds. This 4 AN hose-to-4 AN female aluminum fitting delivers reliable pressure containment in demanding environments where vibration and thermal cycling demand robust, leak-free connections. The 45-degree angle orientation provides optimal routing flexibility in tight engine bays and custom plumbing configurations.

Constructed from lightweight aluminum with black anodized finish, this fitting resists corrosion while maintaining dimensional stability across temperature extremes. The sport-crimp design accommodates standard hose crimping procedures and works seamlessly with #4 AN braided hose assemblies, a size commonly specified in fuel injection systems, power steering circuits, and custom cooling loops. Anodizing provides both durability and a clean appearance in visible engine compartment installations. The 45-degree geometry reduces stress concentration points at hose entry, extending hose assembly service life compared to straight connectors in constrained routing scenarios.

This fitting is essential for builders working with AN-spec fuel systems, custom hydraulic brake upgrades, and performance cooling modifications. Whether fabricating a fuel cell plumbing harness, upgrading from factory rubber hose to braided steel lines, or designing a bespoke transmission cooler circuit, the FRAGOLA 45-degree crimp connector provides the precision interface needed for pressure-tested reliability. Single unit sold—ensure you order the correct quantity to complete your hose assembly project.