6AN PTFE Fuel Line Kit 26ft AN6 Hose with Fittings - Durable EFI Line

In this review of the 6AN PTFE Fuel Line Kit the focus is practical: this kit is aimed at home mechanics and professional installers who need a corrosion-resistant, high-pressure fuel hose for EFI conversions, LS swaps, turbo oil feed, or transmission cooler lines. The single biggest reason to buy is the complete kit approach - 26ft of PTFE-lined, stainless steel braided hose plus a broad assortment of AN6 fittings and accessories that let you build custom runs without hunting down parts. It reads as a serviceable, installation-first product that favors durability and chemical compatibility.

Key Features

• Complete kit: 26ft of AN6 fuel line with 12 hose end fittings and quick disconnects gives enough material to route multiple runs or a long single run without additional purchases.
• High pressure rating: The hose is rated to 3000psi working pressure with a 10000psi burst, providing a safety margin for EFI and turbo feed applications.
• Temperature tolerance: A wide working range from -76F to 446F (-60C to 230C) means the hose survives extreme underhood heat and cold cycles.
• Corrosion resistance: PTFE inner liner with nylon stainless steel braid and T6061 aluminum fittings reduces chemical attack from fuels and lubricants common to modern engines.
• Accessory set: Includes hose separator clamps, male couplers, a reaming tool and a wrench so fittings can be prepared and installed on-site.

Who It's For

This kit is best for enthusiasts performing an EFI LS swap, turbo installations, or anyone fabricating custom fuel or oil lines who needs compatibility with gasoline, E85, diesel blends and many lubricants. The long 26ft length and variety of fittings make it suited to shops and DIYers who want a single purchase to cover multiple vehicles or routing needs.

It is less appropriate for users who need extremely flexible rubber hose for tight coil routing, since PTFE-lined, stainless braided hose is relatively stiff and does not bend sharply. Novice installers uncomfortable with cutting and flaring PTFE hose should consider professional installation or hire an experienced fitter.

Pros & Cons

Pros

• Complete hardware bundle reduces trips for additional fittings and tools.
• High pressure and burst ratings give confidence for EFI and turbo oil lines.
• Wide temperature range and PTFE compatibility with fuels, E85 and coolants.
• T6061 aluminum fittings and stainless braid improve corrosion resistance.

Cons

• PTFE hose is relatively stiff and cannot be folded; careful planning and bending are required.
• Professional installation is recommended for best results, which adds cost for some users.

Specifications

Inner Diameter	3/8 in
Outside Diameter	0.465 in
Length	26 ft
Working Temperature	-76F to 446F (-60C to 230C)
Maximum Working Pressure	3000 psi
Bursting Pressure	10000 psi
Fitting Material	T6061 aluminum

Our Verdict

The 6AN PTFE Fuel Line Kit is a value-minded choice for anyone building or upgrading EFI, LS swap or turbo oil feed systems who needs chemically compatible, high-pressure hose and a full set of fittings. Its long length and accessory kit reduce part sourcing, and the robust pressure and temperature specs make it reliable for demanding engine bays; factor in installation skill or shop labor for best results.

Frequently Asked Questions

Is this hose compatible with E85?
Yes. The PTFE inner liner is compatible with automotive fuels including E85 and many lubricants.

Can the hose be bent tightly to fit cramped engine bays?
No. The PTFE-lined, stainless braided hose is relatively stiff and cannot be folded; plan routing and use clamps or adapters for tight runs.

What tools are included to prepare the hose?
The kit includes a standard wrench and a way reaming tool plus fittings, couplers and separator clamps for on-site cutting and fitting.