4an PTFE Hose w/Black Cover 20ft

The 4AN PTFE Hose w/Black Cover 20ft is specifically engineered for high-performance fuel, oil, and coolant transfer in modified vehicles where reliability and durability are essential. Built by Fragola—a trusted name among serious automotive builders—this hose assembly is ideal for applications such as engine swaps, turbo installations, and custom fuel system configurations.

Featuring a PTFE (polytetrafluoroethylene) inner core, this hose offers superior chemical resistance and thermal stability compared to standard rubber hoses, making it suitable for high-heat underhood environments. The black outer cover protects against UV degradation, abrasion, and mechanical damage while maintaining a professional appearance in engine compartments. The reinforced construction is rated for sustained high-pressure operation, ensuring reliability when managing fuel injection pressures or boost circuit cooling loops.

Mechanics and fabricators favor this hose for EFI conversions, LS swaps, and aftermarket cooling system builds where traditional rubber hoses may fail. The 20-foot length provides the necessary reach and flexibility for complex engine bay layouts, accommodating multiple sections of a comprehensive fuel or coolant circuit while reducing splice points.