6AN PTFE hose 20ft

The REDHORSE PERFORMANCE 6AN PTFE hose 20ft is engineered for high-pressure fuel systems, transmission coolers, and custom hydraulic applications in modified vehicles. Built to handle demanding fuel injection setups, turbo systems, and performance cooling circuits, this hose is the go-to choice for serious engine builders and race mechanics who demand reliability under extreme conditions. Whether you're running a carbureted big-block, a modern turbocharged engine, or a complex auxiliary system, the 20-foot length provides flexibility for custom routing and manifold placement without mid-line splices.

PTFE (polytetrafluoroethylene) inner cores resist fuel permeation and chemical degradation, maintaining integrity across temperature swings from –40°F to +257°F—critical for turbocharged engines and harsh climates. The 6AN designation indicates a nominal 3/8-inch inside diameter, rated for system pressures up to 400 PSI, making it suitable for both fuel delivery and return lines in carbureted and EFI systems. Redhorse's braided reinforcement design resists abrasion against chassis components and engine bay heat sources, while the PTFE core eliminates the fuel weeping and hose hardening that plague rubber compounds over time.

Mechanics favor 6AN PTFE hose for fuel-system overhauls, turbo kit installations, and transmission cooler setups on hot rods, drift cars, and drag vehicles where temperature control and fuel system integrity matter. The 20-foot spool accommodates long engine bay runs, tight frame routing, and remote tank-mounted fuel pumps without requiring additional fittings or compression joints that introduce failure points. Installation is straightforward with standard -6AN hose ends and reusable fittings, and the hose's flexibility allows crimping without the kinking issues common to rigid aluminum or steel lines. For custom builders seeking fuel-system reliability without compromise, this is a foundational component.