4AN PTFE Hose Ends Black 90

The 4AN PTFE Hose Ends Black 90 from REDHORSE PERFORMANCE is a precision-engineered adapter fitting designed for high-performance fuel, coolant, and brake line applications in custom vehicle builds. Built for serious enthusiasts and professional mechanics who demand reliability under extreme conditions, this 90-degree hose end connects AN-specification hose to hard-line or component ports. Whether you're constructing a turbocharged engine bay, upgrading to a custom fuel delivery system, or rebuilding a race car's hydraulic infrastructure, this fitting delivers the secure, leak-free connection that separates amateur work from championship-level craftsmanship.

Manufactured from durable black-anodized aluminum with a PTFE (polytetrafluoroethylene) inner sealing surface, the 4AN PTFE Hose Ends Black 90 resists corrosion and maintains structural integrity across temperature swings common in aggressive motorsports environments. The 90-degree angle design allows tight routing around engine components and frame rails without kinking hose or compromising flow. PTFE lining prevents galling and ensures a repeatable, tight seal every time—critical when pressure-tested fuel or coolant systems cannot tolerate weeping at connection points. The compact 2.8 x 1 x 3.75 inch profile fits confined engine bays where straight fittings simply won't work.

This fitting excels in EFI fuel system conversions, custom water cooling circuits, brake line upgrades, and nitrous oxide delivery lines where AN hose provides superior abrasion and heat resistance compared to factory rubber. Installation requires a standard hose crimper and AN hose with compatible -4 diameter (1/4-inch) port size. Mechanics building everything from street turbo builds to full race engines rely on REDHORSE PERFORMANCE fittings because failure is not an option when fuel pressure, coolant flow, or brake fluid integrity is at stake. The black finish integrates seamlessly into modern engine dress-up while the engineering quality guarantees years of dependable service.