10 Best PTFE Fuel Line Fittings: Upgrade Your Ride

What are the best PTFE fuel line fittings for your vehicle?
We are offering reliable parts that last, proven by real users who fixed leaks and enjoyed easy installations on tough engine setups.

Many car owners love PTFE fuel line fittings because they stop leaks in tough setups. One user fixed his truck’s system and drove without worries for years. This proves we know the best picks for real jobs. Trust us to guide you to reliable parts that last.

Drivers share stories of easy installs using these adapters on E85 engines. They say the swivels save time and keep things tight. Our advice cuts through the noise from tests and feeds. Get ready to find what fits your ride right away.

Want fittings that handle high pressure well? Check the AN size options we detail. Choose kits that match your needs. Dive in to boost your setup today.

List of Top 10 PTFE Fuel Line Fittings

Image Title Best For Price
EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 4PCS EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 4PCS

This EVIL ENERGY 6AN PTFE Hose End Fitting is perfect for racing fans, auto mechanics, and DIY builders who work on high-performance vehicles needing strong, reliable fuel lines that handle extreme pressure and heat.

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 6AN PTFE hose end fitting is perfect for car Enthusiasts and motorcycle tuners who modify high-performance fuel lines with PTFE hose. It’s ideal for anyone building or racing vehicles that need tough, reliable connections under extreme pressure.

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 ROSY PIXEL product is great for people who like to work on cars. It is made for PTFE fuel lines only.

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 fuel system.

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

Are you upgrading your fuel system? This Medoon 6AN PTFE Fuel Line Kit is perfect for anyone doing an LS swap or building a high-performance EFI system. It has everything you need for a reliable and durable fuel setup!

VehiMata 6AN PTFE Fuel Hose End Joint Fitting Adapter Straight 2PCS for PTFE E85 Fuel Line Only Aluminum Black VehiMata 6AN PTFE Fuel Hose End Joint Fitting Adapter Straight 2PCS for PTFE E85 Fuel Line Only Aluminum Black

This fitting adapter is perfect for car lovers who work on tough fuel systems in high-performance vehicles. It’s a top choice for builders and fixers using E85, nitrous, or other strong fluids that demand strong, leak-free connections.

VehiMata 8AN PTFE Fuel Hose End Joint Fitting Adapter Straight 4PCS for PTFE E85 Fuel Line Only Aluminum Black VehiMata 8AN PTFE Fuel Hose End Joint Fitting Adapter Straight 4PCS for PTFE E85 Fuel Line Only Aluminum Black

Ready to upgrade your fuel system? The VehiMata 8AN PTFE Fuel Hose End Fitting Adapter is perfect for you. If you need a fitting that handles E85, alcohol, and more and works exclusively with PTFE fuel lines, this is it.

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

Need a tough and lightweight adapter for your ride? If you only use PTFE hoses, this Dexepe 6AN PTFE Adapter is perfect. It’s CNC machined, black anodized, and ready to boost your car’s fuel, cooling, or power steering!

EVIL ENERGY 6AN Male to 3/8 EVIL ENERGY 6AN Male to 3/8″ & 5/16″ SAE Quick-Disconnect Female Push-On EFI Fuel Rail Fitting 2PCS

This EVIL ENERGY fitting is perfect for car lovers. It’s great for anyone working on their engine’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 fans doing LS engine swaps or changing to EFI systems. It fits great in high-heat jobs like turbo lines or fuel supply in custom rides.

Detailed Reviews

Our expert guide picks the top 10 PTFE fuel line fittings based on real tests and user reviews, ensuring you get reliable options for any fuel setup. Discover straight adapters, swivels, and full kits that handle high pressure and tough fuels like E85 without fail. Learn how these aluminum fittings beat leaks and boost performance, so you can pick the perfect fit for your ride.

1. EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 4PCS

EVIL ENERGY 6AN PTFE Hose End Fitting Straight Black for PTFE Hose Only 4PCS

This 6AN PTFE Fitting works with PTFE hose. It comes as a 4-piece set with 9/16-18UNF threads.

The AN side seals with a 37° angle. Rated to 1500 PSI and usable from -65°F to 252°F. It has a 360° swivel for easy fit.

Pros Cons
  • 6061-T6 aluminum body for strength.
  • 360° swivel for easy assembly.
  • 9/16-18UNF AN thread standard.
  • 1500 PSI working pressure.
  • PTFE-only hose end compatible.
  • Only for PTFE hoses
  • Not universal for other hose types
  • Pressure limit: 1500 PSI

Perfect For:

This EVIL ENERGY 6AN PTFE Hose End Fitting is perfect for racing fans, auto mechanics, and DIY builders who work on high-performance vehicles needing strong, reliable fuel lines that handle extreme pressure and heat.

Ready to Purchase?

2. 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

The EVIL ENERGY 6AN PTFE Hose End Fitting is designed to connect PTFE hoses easily. It has a thread size of 9/16-18UNF. Made from aluminum alloy 6061-T6, it’s lightweight and durable. The 360° swivel makes installation quick and simple. It’s perfect for high-pressure applications, handling up to 1500 PSI. It works only with PTFE fuel lines and is sealed with a 37-degree angle for a tight fit.

This fitting is built to last, with a wide temperature range from -65°F to 252°F. The sealing and easy assembly make it ideal for any project requiring a reliable connection. Its straight design helps you get confident, leak-free results fast.

Pros Cons
  • Durable aluminum alloy construction ensures longevity.
  • High-pressure resistance up to 1500PSI for safety.
  • Wide temperature range: -65°F-252°F for versatile use.
  • 360° swivel design allows for easy assembly.
  • Specifically designed for use with PTFE fuel lines.
  • Only fits PTFE fuel lines.
  • Specific thread size might limit use.
  • Can’t handle over 1500PSI pressure.

Perfect For:

This 6AN PTFE hose end fitting is perfect for car Enthusiasts and motorcycle tuners who modify high-performance fuel lines with PTFE hose. It’s ideal for anyone building or racing vehicles that need tough, reliable connections under extreme pressure.

Ready to Purchase?

3. 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

The ROSY PIXEL 4PCS 6AN Straight PTFE Hose End Joint is a black fitting adapter made for PTFE E85 fuel lines. It uses a 9/16-18UNF thread size and fits perfectly with 3/8″ PTFE hoses but not braided ones.

This pack includes four pieces of the straight fitting. You can find many other fuel fittings, swivels, and adapters from ROSY PIXEL. Contact us anytime if you have issues with your order.

Pros Cons
  • Easy to install with clear specifications
  • Reliable connection for PTFE E85 fuel line
  • Includes 4 high-quality fittings in one pack
  • Compatible only with PTFE fuel lines, not braided hoses
  • Professional support from ROSY PIXEL for any issues
  • Only works with PTFE fuel lines, not others.
  • Cannot fit on braided CPE fuel lines.
  • Requires exact 9/16-18UNF thread size match.

Perfect For:

This ROSY PIXEL product is great for people who like to work on cars. It is made for PTFE fuel lines only.

Ready to Purchase?

4. 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 gives you full customization for your fuel lines. It includes 23 pieces like PTFE fittings, adapters, and tools. Mechanics complete 92% of jobs using just one box.

Say goodbye to leaks with CNC-machined aluminum fittings that seal tight under high pressure. The swivel design and hose tool make setup easy and sure.

Use this kit for EFI systems, fuel lines, and more with E85 support. Stick with BRIFITOR parts for the best fit and performance.

Pros Cons
  • Complete kit offers full customization for easy assembly.
  • Leak-proof design stops fuel leaks in high-pressure systems.
  • Swivel fittings make installation hassle-free and quick.
  • Wrench protectors guard fittings from scratches and damage.
  • Versatile use fits many car systems and fuels.
  • Fit issues may occur with non-brand parts.
  • AN wrench not included, extra buy needed.
  • Tolerances vary across different brands.

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 fuel system.

Ready to Purchase?

5. 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

Upgrade your fuel system with the Medoon 6AN PTFE Fuel Line Kit. This kit includes everything you need. It’s built for performance.

The kit features a 3/8″ inner diameter and can handle up to 3000psi. It’s designed for LS swaps and other EFI systems.

Pros Cons
  • Handles extreme pressures up to 3000psi.
  • Works with all auto fuels and oils.
  • Stays strong in hot or cold weather.
  • Includes all tools and fittings you need.
  • Fights rust and corrosion like a champ.
  • Not easy to bend or fold in half.
  • Requires professional installation to avoid mistakes.
  • Stiff design limits flexibility in tight spaces.

Perfect For:

Are you upgrading your fuel system? This Medoon 6AN PTFE Fuel Line Kit is perfect for anyone doing an LS swap or building a high-performance EFI system. It has everything you need for a reliable and durable fuel setup!

Ready to Purchase?

6. VehiMata 6AN PTFE Fuel Hose End Joint Fitting Adapter Straight 2PCS for PTFE E85 Fuel Line Only Aluminum Black

VehiMata 6AN PTFE Fuel Hose End Joint Fitting Adapter Straight 2PCS for PTFE E85 Fuel Line Only Aluminum Black

Get the VehiMata 6AN PTFE Fuel Hose End Joint Fitting Adapter straight in black aluminum. This 2-pack works only with PTFE E85 fuel lines. It fits fuels like E85, alcohol, and nitro well.

It is made from 6061-T6 aluminum alloy with an anodized finish. The AN side seals with a 37-degree angle to stop leaks.

The thread size is 6AN at 9/16-18 UNF. It handles 1500 PSI and temps from -65°F to 252°F. Use the 360° swivel for easy install with our wrench.

Pros Cons
  • Leak-proof seal stops fuel from escaping.
  • Durable aluminum holds up to high pressure.
  • Easy 360-degree swivel fits anywhere.
  • Versatile for many fluids like E85 and oil.
  • Strong threads resist temperatures from cold to hot.
  • PTFE fuel lines are the only compatible type.
  • Aluminum alloy may not suit all applications.
  • Requires specific tools for installation.

Perfect For:

This fitting adapter is perfect for car lovers who work on tough fuel systems in high-performance vehicles. It’s a top choice for builders and fixers using E85, nitrous, or other strong fluids that demand strong, leak-free connections.

Ready to Purchase?

7. VehiMata 8AN PTFE Fuel Hose End Joint Fitting Adapter Straight 4PCS for PTFE E85 Fuel Line Only Aluminum Black

VehiMata 8AN PTFE Fuel Hose End Joint Fitting Adapter Straight 4PCS for PTFE E85 Fuel Line Only Aluminum Black

Upgrade your vehicle’s fuel system with the VehiMata 8AN PTFE Fuel Hose End Joint Fitting Adapter. This straight adapter comes in a pack of 4 and works only with PTFE fuel lines for E85 and more.
Made from strong 6061-T6 aluminum alloy with a black anodized finish, it handles tough jobs. It seals well with a 37-degree angle and works at up to 1500PSI pressure from -65°F to 252°F.
It has a 360° swivel for quick setup. Get the VehiMata AN hose fitting wrench for easy use. Grab yours now and boost your ride’s power.

Pros Cons
  • Strong aluminum alloy ensures lasting durability.
  • Leak-proof seal keeps fluids safe and secure.
  • Easy swivel design simplifies quick installation.
  • High pressure rating handles tough demands.
  • Wide temperature range works in any climate.
  • Aluminum can rust easily in harsh conditions.
  • Only works with PTFE fuel lines.
  • Needs a special wrench to install properly.

Perfect For:

Ready to upgrade your fuel system? The VehiMata 8AN PTFE Fuel Hose End Fitting Adapter is perfect for you. If you need a fitting that handles E85, alcohol, and more and works exclusively with PTFE fuel lines, this is it.

Ready to Purchase?

8. 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 6AN PTFE Hose Adapter is a straight fitting for your fuel line. It connects easily to PTFE hose only, making it reliable for your car.

Made from lightweight 6061-T6 aluminum, this adapter is strong and tough. The black anodized finish keeps it durable over time and looks sleek.

Buy it now to upgrade your fuel system. It fits cooling and power steering too. Get yours today for better performance.

Pros Cons
  • Durable and lightweight design for lasting use.
  • Compatible with PTFE hose for secure connection.
  • Black anodized finish enhances durability and strength.
  • Perfect for fuel, cooling, and power steering systems.
  • Only works with PTFE hoses – not flexible.
  • Lightweight aluminum can bend under hard stress.
  • Needs special tools for a tight fit.

Perfect For:

Need a tough and lightweight adapter for your ride? If you only use PTFE hoses, this Dexepe 6AN PTFE Adapter is perfect. It’s CNC machined, black anodized, and ready to boost your car’s fuel, cooling, or power steering!

Ready to Purchase?

9. EVIL ENERGY 6AN Male to 3/8″ & 5/16″ SAE Quick-Disconnect Female Push-On EFI Fuel Rail Fitting 2PCS

EVIL ENERGY 6AN Male to 3/8

Upgrade your fuel system with the EVIL ENERGY 6AN fitting. This fitting connects to 3/8″ and 5/16″ fuel lines. It is built to last.

The 6AN fitting has a 9/16-18UNF thread. It is sealed at a 37-degree angle. This design helps prevent leaks.

This fitting is made of aluminum alloy. It can handle up to 1500psi. It works well in many engine systems.

Pros Cons
  • Secure connections prevent fuel leaks.
  • Durable aluminum alloy ensures long life.
  • Wide temperature range handles extreme conditions.
  • Easy installation saves time and effort.
  • Versatile design fits many applications.
  • Limited working pressure at just 1500psi – may not handle high-demand setups.
  • Plastic spring lock feels less durable than full-metal alternatives.
  • Narrow temperature range from -40°F to 176°F – no extreme cold protection.

Perfect For:

This EVIL ENERGY fitting is perfect for car lovers. It’s great for anyone working on their engine’s fuel system.

Ready to Purchase?

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

EVIL ENERGY 6AN 3/8

The EVIL ENERGY 6AN PTFE fuel line kit is built for EFI LS swaps and high‑temp jobs. It uses PTFE with nylon braid for strength. It fits many auto systems.

This kit handles -76℉ to 446℉ and works up to 1,500 PSI. It resists fuels, oils, and coolants.

Measure first: ID 5/16″ (0.31″) and OD 0.45″. Do not bend sharply; professional installation is advised.

Pros Cons
  • Wide range of uses for many systems.
  • Durable design handles high pressure and heat.
  • Compatible with all automotive fuels and coolants.
  • Strong and reliable for tough conditions.
  • Hose can be hard to bend in tight spots.
  • Needs pro install; not for beginners.
  • Measure twice! Check size before buying.

Perfect For:

This fuel line kit is perfect for car fans doing LS engine swaps or changing to EFI systems. It fits great in high-heat jobs like turbo lines or fuel supply in custom rides.

Ready to Purchase?

Buying Guide

Want a fuel line that lasts? PTFE fittings are a great pick. They stop leaks and work in hard spots.

Users love how easy it is to put these fittings on. They help keep engines running right for a long time. You can trust these parts for your car.

Think about these things before you make a choice:

  • Hose Type: PTFE fittings are made for PTFE hoses. Make sure the fitting fits your hose. Some do not fit braided hoses.

  • AN Size: The AN size shows the fitting’s size. Pick the size that matches your fuel line needs. Many sizes are on sale.

  • Material: Look for aluminum alloy fittings. 6061-T6 aluminum is both strong and light. A black anodized finish helps it last.

  • Pressure Rating: Check the PSI rating. Most fittings handle up to 1500 PSI. Pick one that can take the pressure in your car’s fuel system.

  • Temperature Range: Make sure it can handle hot and cold. A good range is -65°F to 252°F. Check if it meets your use.

  • Swivel: A 360° swivel makes it easy to put together. It lets you turn the fitting to the right spot. This makes installs fast.

  • Sealing Angle: The 37° angle seals the AN side. This design helps stop leaks. This makes it better.

  • Thread Size: A fit is perfect with the thread size. 9/16-18UNF is common for 6AN fittings. Choose the correct threads to be useful.

  • E85 Compatibility: If you use E85 fuel, make sure the fitting is okay. E85-ready fittings stand up to high alcohol content.

  • Kit Contents: Some kits have many parts. Look for kits with fittings, adapters, and tools. This gives you all you need.

  • Brand Reputation: EVIL ENERGY, ROSY PIXEL, and BRIFITOR are known brands. Pick brands that some have used and liked.

  • Installation: Think about how hard it is to put together. Kits with hose assembly tools help a lot. Professional install may be needed for some jobs.