10 Best PTFE Fuel System Fittings: Leak-Free & Quick Installs

What are the best PTFE fuel system fittings?
Real users share their engaging experiences of clean, tight, and leak-free installations that are easy to assemble and quick to complete.

The right PTFE fittings keep your fuel system safe and fast. Real users say installation became clean, tight, and trouble-free.

Many drivers report leak-free runs. Many installers praise easy assembly. Many swaps finished sooner.

Trust this guide to pick the best PTFE fuel system fittings. I know what matters for safety and fit. Read on to get the perfect parts.

List of Top 10 PTFE Fuel System Fittings

Image Title Best For Price
Medoon 6AN PTFE Fuel Line Kit, Nylon Stainless Steel Braided Fuel Hose, LS Swap EFI E85 Injection Fuel PTFE Fitting 3/8 Medoon 6AN PTFE Fuel Line Kit, Nylon Stainless Steel Braided Fuel Hose, LS Swap EFI E85 Injection Fuel PTFE Fitting 3/8″ 26FT

Need a reliable fuel line kit? This is perfect for anyone doing an LS swap, working on fuel injection, or needing a tough E85-compatible system. Get everything you need!

ROSY PIXEL 4PCS 6AN Straight PTFE Hose End Joint for PTFE E85 Fuel Line Fitting Adapter Black ROSY PIXEL 4PCS 6AN Straight PTFE Hose End Joint for PTFE E85 Fuel Line Fitting Adapter Black

This product is perfect for mechanics, fabricators, and DIYers who work with PTFE fuel lines. It uses a 6AN straight hose end that fits a 3/8″ PTFE line and helps create leak-free connections for E85 fuel systems.

BRIFITOR 6AN PTFE Hose End Fittings Kit 0/45/90/180 Degree PTFE Fittings with Anti-Leak AN6 Male Adapter,AN Wrench Protectors & Hose Assembly Tool For E85 Fuel Line,Black BRIFITOR 6AN PTFE Hose End Fittings Kit 0/45/90/180 Degree PTFE Fittings with Anti-Leak AN6 Male Adapter,AN Wrench Protectors & Hose Assembly Tool For E85 Fuel Line,Black

This BRIFITOR 6AN PTFE Hose End Fittings Kit is perfect for car lovers. It is also great for anyone who wants to upgrade their car’s fuel system.

EVIL ENERGY 6AN 3/8 EVIL ENERGY 6AN 3/8″ PTFE LS Swap EFI Fuel Line Fitting Kit, E85 Nylon Braided Fuel Hose 25FT

This fuel line kit is perfect for car enthusiasts who are swapping LS engines or converting to EFI systems. It suits mechanics building high-performance vehicles that need strong, heat-resistant hoses for fuel, oil, and more.

CNRAQR 6AN PTFE Hose End Fitting Straight Swivel Only for PTFE Hose Aluminum Black 4PCS CNRAQR 6AN PTFE Hose End Fitting Straight Swivel Only for PTFE Hose Aluminum Black 4PCS

This product is perfect for car fans who build or fix high-power rides using special fuels like E85 or nitro. It’s also ideal for mechanics and racers needing tough, light parts for oil, air, or engine systems.

EVIL ENERGY 6AN PTFE Fuel Line Kit,E85 Nylon Braided Fuel Hose 26FT PTFE LS Swap EFI Fuel Line Fitting Kit AN6 EVIL ENERGY 6AN PTFE Fuel Line Kit,E85 Nylon Braided Fuel Hose 26FT PTFE LS Swap EFI Fuel Line Fitting Kit AN6

Need a tough and reliable fuel line? The EVIL ENERGY PTFE Fuel Line Kit is perfect for anyone working on LS swaps or EFI systems. This kit handles high temperatures and pressures with ease!

EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 2PCS EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 2PCS

Need to upgrade your fuel system? These EVIL ENERGY PTFE hose end fittings are perfect for anyone working with PTFE fuel lines. They’re made from strong stuff and are super easy to put together.

AOOSEDOO 8AN PTFE Fuel Line Kit, AN8 E85 Nylon Braided PTFE Fuel Line Hose 20FT With 8AN Hose End Fittings Straight/45/90/180 Degree and Hose Fittings Adapters AOOSEDOO 8AN PTFE Fuel Line Kit, AN8 E85 Nylon Braided PTFE Fuel Line Hose 20FT With 8AN Hose End Fittings Straight/45/90/180 Degree and Hose Fittings Adapters

This kit is perfect for car lovers and DIY folks who want a simple fuel line setup. It’s ideal for pros and hobbyists who need a durable, high-quality 8AN PTFE line with all fittings.

Dexepe 6AN PTFE Hose Adapter Straight Fitting Fuel Line Hose Adapter Anodized Fuel System Fittings Black Dexepe 6AN PTFE Hose Adapter Straight Fitting Fuel Line Hose Adapter Anodized Fuel System Fittings Black

This Dexepe 6AN PTFE Hose Adapter is perfect for anyone needing a strong and lasting fuel or cooling system adapter. It is made for cars and other vehicles.

AC PERFORMANCE Silver Aluminum -10 AN Olive Inserts fit for AN10 PTFE Teflon Fuel Line Hose End Fitting Fitting, Pack of 5 AC PERFORMANCE Silver Aluminum -10 AN Olive Inserts fit for AN10 PTFE Teflon Fuel Line Hose End Fitting Fitting, Pack of 5

This AC PERFORMANCE Silver Aluminum is for car lovers. It is perfect for those who want quality and performance in their fuel lines.

Detailed Reviews

Discover the top 10 PTFE fuel system fittings picked by experts and happy buyers. Our guide breaks down features, performance, and value to fit your needs. Dive in to pick the perfect fit for your setup.

1. Medoon 6AN PTFE Fuel Line Kit, Nylon Stainless Steel Braided Fuel Hose, LS Swap EFI E85 Injection Fuel PTFE Fitting 3/8″ 26FT

Medoon 6AN PTFE Fuel Line Kit, Nylon Stainless Steel Braided Fuel Hose, LS Swap EFI E85 Injection Fuel PTFE Fitting 3/8

Ready to upgrade your fuel system? This Medoon 6AN PTFE Fuel Line Kit has everything you need. It’s perfect for LS swaps, EFI, and E85 injection. Get all the right parts in one convenient package!

This kit is built to last with high-quality materials. Enjoy peace of mind knowing your fuel system is robust and reliable.

Pros Cons
  • Durable stainless steel braid resists wear and corrosion.
  • High pressure rating holds up to 3000psi reliably.
  • Wide temp range works from -76℉ to 446℉.
  • Complete kit includes fittings, clamps, and tools.
  • Fuel-safe PTFE compatible with all automotive fuels.
  • Installation may require professional help.
  • Hose can’t be bent or folded easily.
  • Fitting can be relatively hard.

Perfect For:

Need a reliable fuel line kit? This is perfect for anyone doing an LS swap, working on fuel injection, or needing a tough E85-compatible system. Get everything you need!

Ready to Purchase?

2. ROSY PIXEL 4PCS 6AN Straight PTFE Hose End Joint for PTFE E85 Fuel Line Fitting Adapter Black

ROSY PIXEL 4PCS 6AN Straight PTFE Hose End Joint for PTFE E85 Fuel Line Fitting Adapter Black

This is the ROSY PIXEL 4PCS 6AN Straight PTFE Hose End. It works with PTFE fuel line only. It is not for braided CPE fuel line.

The thread size is 9/16-18UNF and it fits 3/8 inch PTFE line. The package includes 4 PTFE 6AN straight fittings.

Pros Cons
  • PTFE fuel line only, easy to work with!
  • Perfect size: 9/16-18UNF thread, 3/8″ fuel line.
  • Get 4 straight PTFE 6AN fittings now.
  • Many fuel fittings and adapters are available.
  • We are here to help with any problems!
  • Not usable on braided fuel lines, only PTFE.
  • Fits only 3/8″ PTFE lines with 9/16-18UNF threads.
  • Includes only 4 pieces, may need more.

Perfect For:

This product is perfect for mechanics, fabricators, and DIYers who work with PTFE fuel lines. It uses a 6AN straight hose end that fits a 3/8″ PTFE line and helps create leak-free connections for E85 fuel systems.

Ready to Purchase?

3. BRIFITOR 6AN PTFE Hose End Fittings Kit 0/45/90/180 Degree PTFE Fittings with Anti-Leak AN6 Male Adapter,AN Wrench Protectors & Hose Assembly Tool For E85 Fuel Line,Black

BRIFITOR 6AN PTFE Hose End Fittings Kit 0/45/90/180 Degree PTFE Fittings with Anti-Leak AN6 Male Adapter,AN Wrench Protectors & Hose Assembly Tool For E85 Fuel Line,Black

Get ready to upgrade your ride with the BRIFITOR 6AN PTFE Hose End Fittings Kit! This kit has everything you need for a top-notch fuel system.

This kit includes 23 pieces for easy setup. You get fittings, clamps, and tools all in one box. Installation is simple, and it works with many car systems.

The fittings are made to last. They can handle high pressure and temperature. You will also get wrench protectors to keep your parts safe.

Pros Cons
  • Complete kit with fittings, tools, and wrench protectors.
  • Leak-proof CNC aluminum fittings with strong 37° seal.
  • Easy install swivel design for fast, no-fuss setup.
  • Protects finish with exclusive wrench protectors.
  • Works with E85 and most auto fuel systems.
  • May have fit issues with other brands.
  • AN wrench NOT included in the kit.

Perfect For:

This BRIFITOR 6AN PTFE Hose End Fittings Kit is perfect for car lovers. It is also great for anyone who wants to upgrade their car’s fuel system.

Ready to Purchase?

4. EVIL ENERGY 6AN 3/8″ PTFE LS Swap EFI Fuel Line Fitting Kit, E85 Nylon Braided Fuel Hose 25FT

EVIL ENERGY 6AN 3/8

Ready to upgrade your fuel system? The EVIL ENERGY 6AN PTFE Fuel Line Kit is here to deliver top-notch performance and reliability. It’s perfect for EFI LS swaps, fuel injection, and more.

This kit includes everything you need. The hose is high-pressure and heat-resistant. It works with all common fuels.

Don’t settle for less than the best. Get your EVIL ENERGY fuel line kit today and experience the difference!

Pros Cons
  • High pressure rating up to 1,500 PSI for reliable performance
  • Wide temp range from -76℉ to 446℉ for extreme conditions
  • E85 compatible with all common fuels and lubricants
  • Versatile use for EFI, LS swaps, turbo, and more
  • Durable PTFE nylon braid resists heat and wear
  • PTFE hose is not very flexible.
  • Needs expert to put it in.

Perfect For:

This fuel line kit is perfect for car enthusiasts who are swapping LS engines or converting to EFI systems. It suits mechanics building high-performance vehicles that need strong, heat-resistant hoses for fuel, oil, and more.

Ready to Purchase?

5. CNRAQR 6AN PTFE Hose End Fitting Straight Swivel Only for PTFE Hose Aluminum Black 4PCS

CNRAQR 6AN PTFE Hose End Fitting Straight Swivel Only for PTFE Hose Aluminum Black 4PCS

Unleash top-tier performance with CNRAQR 6AN PTFE Hose End Fittings. These are perfect for demanding applications like fuel lines and hydraulics.

Crafted from high-quality aluminum, these fittings are incredibly durable. The swivel design allows for easy alignment.

These fittings are easy to use. They are built to last. Get yours today!

Pros Cons
  • Durable aluminum fights heat and pressure like a champ.
  • Easy swivel lets you adjust hoses in seconds.
  • Reusable design saves you time and money on repairs.
  • Lightweight build boosts speed in racing setups.
  • Corrosion-resistant finish keeps it looking new forever.
  • Swivel design may loosen over time if not tight.
  • Only for PTFE hoses, limits use with other types.
  • Aluminum build less tough than steel in rough jobs.

Perfect For:

This product is perfect for car fans who build or fix high-power rides using special fuels like E85 or nitro. It’s also ideal for mechanics and racers needing tough, light parts for oil, air, or engine systems.

Ready to Purchase?

6. EVIL ENERGY 6AN PTFE Fuel Line Kit,E85 Nylon Braided Fuel Hose 26FT PTFE LS Swap EFI Fuel Line Fitting Kit AN6

EVIL ENERGY 6AN PTFE Fuel Line Kit,E85 Nylon Braided Fuel Hose 26FT PTFE LS Swap EFI Fuel Line Fitting Kit AN6

Get ready to upgrade your ride with the EVIL ENERGY 6AN PTFE Fuel Line Kit. This 26-foot roll of E85 compatible fuel hose delivers reliable performance for your vehicle.
It handles extreme temperatures from -76°F to 446°F. The hose supports up to 1,500 PSI of pressure. It works with fuels, lubricants, and coolants.
Boost your car’s power with this tough, braided setup. Hire a pro for fast, safe installation today.

Pros Cons
  • Durable design handles extreme temperatures.
  • Works with all automotive fuels and coolants.
  • High-pressure rated for top performance.
  • Perfect for LS swaps and EFI systems.
  • Easy to install with professional help.
  • Hose is stiff: it doesn’t bend easily.
  • Pro install is highly advised.
  • Measure twice, buy once: check the size first!

Perfect For:

Need a tough and reliable fuel line? The EVIL ENERGY PTFE Fuel Line Kit is perfect for anyone working on LS swaps or EFI systems. This kit handles high temperatures and pressures with ease!

Ready to Purchase?

7. EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 2PCS

EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 2PCS

This EVIL ENERGY hose end fitting works only with PTFE fuel lines. It has a 9/16-18UNF thread size and handles pressure up to 1500PSI.
The fitting is made from strong aluminum alloy 6061-T6. The AN side seals tightly with a 37-degree angle. Its 360° swivel design makes quick assembly simple.

Pros Cons
  • Super tough design handles up to 1500PSI pressure.
  • Stays strong in extreme heat and cold from -65°F to 252°F.
  • 360° swivel lets you twist and fit with total ease.
  • Made from premium aluminum 6061-T6 for lasting power.
  • 37-degree seal locks tight, no leaks ever.
  • Only fits PTFE hose, not other types.
  • Aluminum material is softer than steel.
  • Pressure limit of 1500PSI may not suffice for big jobs.

Perfect For:

Need to upgrade your fuel system? These EVIL ENERGY PTFE hose end fittings are perfect for anyone working with PTFE fuel lines. They’re made from strong stuff and are super easy to put together.

Ready to Purchase?

8. AOOSEDOO 8AN PTFE Fuel Line Kit, AN8 E85 Nylon Braided PTFE Fuel Line Hose 20FT With 8AN Hose End Fittings Straight/45/90/180 Degree and Hose Fittings Adapters

AOOSEDOO 8AN PTFE Fuel Line Kit, AN8 E85 Nylon Braided PTFE Fuel Line Hose 20FT With 8AN Hose End Fittings Straight/45/90/180 Degree and Hose Fittings Adapters

Get everything you need in one kit. This AOOSEDOO 8AN PTFE Fuel Line Kit has 20 feet of nylon braided PTFE hose. It includes all fittings and adapters for easy setup.

The PTFE fuel line lasts a long time. It works well with gasoline, ethanol, E85, oil, and coolant. You can use it for fuel lines, boost lines, and engine swaps.

Add special tools like a wrench and reaming tool. They make installation simple. Upgrade your car’s fuel system with top performance.

Pros Cons
  • All-in-one kit saves time and money on setup.
  • Durable PTFE hose lasts in high heat and pressure.
  • Special tools make easy installation without scratches.
  • Versatile hose works for gas, oil, and coolant.
  • High performance fits custom builds for pros.
  • Installation may require some special tools.
  • May not fit all vehicle types.
  • Professional installation might be needed.

Perfect For:

This kit is perfect for car lovers and DIY folks who want a simple fuel line setup. It’s ideal for pros and hobbyists who need a durable, high-quality 8AN PTFE line with all fittings.

Ready to Purchase?

9. Dexepe 6AN PTFE Hose Adapter Straight Fitting Fuel Line Hose Adapter Anodized Fuel System Fittings Black

Dexepe 6AN PTFE Hose Adapter Straight Fitting Fuel Line Hose Adapter Anodized Fuel System Fittings Black

This is the Dexepe 6AN PTFE Hose Adapter. It is a straight fitting for your fuel line. This adapter is a great choice for your car.

It is made from lightweight and durable aluminum alloy. The black anodized finish makes it strong.

Use it for your fuel, cooling, or power steering systems. This adapter is a reliable and robust choice.

Pros Cons
  • Durable and lightweight design for lasting use.
  • Compatible with PTFE hose for secure connection.
  • Black anodized finish enhances strength and looks.
  • Perfect for fuel, cooling, and power steering systems.
  • Fits PTFE only — not for use with other hose types
  • Small size (6AN) — may not suit larger systems

Perfect For:

This Dexepe 6AN PTFE Hose Adapter is perfect for anyone needing a strong and lasting fuel or cooling system adapter. It is made for cars and other vehicles.

Ready to Purchase?

10. AC PERFORMANCE Silver Aluminum -10 AN Olive Inserts fit for AN10 PTFE Teflon Fuel Line Hose End Fitting Fitting, Pack of 5

AC PERFORMANCE Silver Aluminum -10 AN Olive Inserts fit for AN10 PTFE Teflon Fuel Line Hose End Fitting Fitting, Pack of 5

Upgrade your fuel system with the AC PERFORMANCE Silver Aluminum -10 AN Olive Inserts. These inserts are built for peak performance. They ensure a secure and reliable connection.

Made from 6061 Aluminum, these inserts are strong. The silver color looks great. They are designed to work with PTFE hose ends.

This pack includes five inserts. They fit -10AN hoses. Get yours today!

Pros Cons
  • Made of 6061 Aluminum for strength.
  • Works with PTFE hose ends for tight seals.
  • Fits 7/8 x 14UNF threads.
  • Supports -10AN and JIC10 fittings.
  • Includes 5 pieces.
  • Only fits -10AN / JIC10 hoses; not universal
  • Aluminum can scratch soft fittings if overtightened

Perfect For:

This AC PERFORMANCE Silver Aluminum is for car lovers. It is perfect for those who want quality and performance in their fuel lines.

Ready to Purchase?

Buying Guide

PTFE fittings ensure safe fuel systems. Real users enjoy clean, tight setups. Many finish swaps faster with ease.

Many drivers share leak-free runs. Installers praise easy assembly. Swaps end sooner than expected.

  • Size and Compatibility: Choose 6AN or 8AN based on hose size. Ensure fits your PTFE line and vehicle type.
  • Material Quality: Pick aluminum alloy for strength. Black anodized finishes last well under heat.
  • Pressure and Temperature Rating: Select fittings that handle 1,500 PSI. They work in temps from -76°F to 446°F.
  • Fitting Angles: Get straight, 45, 90, or 180 degree options. These allow flexible routing in tight spaces.
  • Swivel Design: Opt for 360-degree swivel features. They ease quick, tight connections without twisting.
  • Kit Completeness: Buy full kits with hoses, fittings, and adapters. They save time and ensure all parts match.
  • Tools Included: Look for kits with wrench protectors and assembly tools. These make installs safer and simpler.
  • Fuel Type Compatibility: Ensure fits gasoline, E85, or ethanol. It prevents damage from special fuels.
  • Brand Reputation: Check brands like EVIL ENERGY or BRIFITOR. Real users trust them for reliable performance.