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10 Best 6AN Fittings for Ultimate Performance in 2025
When it comes to performance vehicles, having the best 6AN fittings can make all the difference in terms of efficiency, safety, and durability. The right fittings help ensure secure connections in fuel systems, oil systems, and more. With a plethora of options available on Amazon, finding the best 6AN fittings can be overwhelming. In this article, we’ll explore the top 10 products available on Amazon to help you make an informed decision.
1. Votex AN6 6AN Fuel Hose Fittings
Votex AN6 6AN Fuel Hose Fittings
The Votex AN6 6AN Fuel Hose Fittings are made from high-quality aluminum and designed for rigorous applications. These fittings provide a tight seal, preventing leakage under high pressure. Their lightweight construction makes them ideal for racing and performance enhancement.
Pros:
- Lightweight and durable aluminum construction
- Easy installation with no additional tools required
- Prevents fuel leaks effectively
Cons:
- Limited color options
- Not suitable for very high temperatures
−$6.00
- 6an braided fuel line kit widely used as transmission oil cooler line, fuel return line, fuel supply line, coolant fluid hose, fuel gauges line, vacuum line, turbo cooler line, oil feed line.
- 6an hose is made of CPE rubber inner, with a layer of 304 steel wire and nylon outer braid; the hose fittings are made of aluminum alloy.
- Maximum Working Pressure: 750psi. Bursting Pressure: 2250psi. Temperature Range: -22°F to 248°F.
- Package includes: 10pcs 6an swivel hose ends (4pcs straight, 2pcs 45degree, 2pcs 90degree, 2pcs 180degree), 2pcs 6an hose separator clamp and 6an braided fuel line (Length: 20 Feet). Hose ID: 0.31". Hose OD: 0.56inch.
- The braided fuel hose can be compatible with transmission fluid, oil, race gas, vacuum, hydraulic fluid, diesel and fuel.
2. MISHIMOTO 6AN Fittings
MISHIMOTO 6AN Fittings
MISHIMOTO is well-known for its high-performance automotive products, and its 6AN fittings are no exception. The MISHIMOTO fittings are crafted from quality aluminum, providing excellent strength and corrosion resistance. They also come in a variety of sizes, making them versatile for different setups.
Pros:
- Corrosion-resistant anodized finish
- Versatile, available in various sizes
- Compatible with a range of fuel types
Cons:
- Higher price point
- May require additional adapters for some setups
- CNC-machined 6061 aluminum -6AN line fitting
- Available in straight, 45-degree, 90-degree, and 180-degree configurations
- Applicable with PTFE braided lines only
- Fittings sold individually
- Mishimoto Lifetime Warranty
3. JEGS Pro Flow AN6 Fitting Kit
JEGS Pro Flow AN6 Fitting Kit
The JEGS Pro Flow AN6 Fitting Kit is made with high-quality materials and is specifically designed for performance applications. This kit contains several fittings, allowing you to customize your fuel or oil systems according to your vehicle’s needs.
Pros:
- Comprehensive kit with various fittings
- High-quality material for durability
- Perfect for custom installations
Cons:
- Not as lightweight as some competitors
- Some users might find the variety overwhelming
- -6 AN Male...
- For Use in Aluminum or Steel Fuel...
- Compression Style...
- No Welding...
- Sold Individually JEGS 103118 -6 AN Fuel Return Line Fitting is designed for installing a return line port into a fuel tank when adding a fuel injection system. The installation is easy using standard hand tools, a drill and does not require access to the inside of the tank. It can be installed into any fuel tank with material thickness up to .250 inches. All you need to do is drill a ½ in. hole and insert the fitting from the outside of the tank, and compressing the aluminum body...
4. Moroso 6AN AN Adaptors
Moroso 6AN AN Adaptors
Moroso offers reliable and high-performing 6AN adaptors suited for various applications. Whether you’re working on fuel lines, oil coolers, or coolant systems, these adaptors provide a solid connection that won’t let you down.
Pros:
- Solid and reliable construction
- Ideal for various systems
- Offers a secure fit for prevent leaks
Cons:
- Limited compatibility with stock fittings
- A bit heavier compared to other options
- -AN to hardline compression adapters for use when adding an -AN fitting to a hard tube Can be used when plumbing water or fuel lines Available in -6AN, -8AN and -10AN in both male and female options Aluminum with black anodized finish Pressure tested to 150 PSI One per package
5. Spectre Performance 6AN Hose End Fittings
Spectre Performance 6AN Hose End Fittings
Spectre Performance offers a range of 6AN hose end fittings that cater to a variety of automotive needs. These fittings are made from high-quality aluminum, ensuring longevity and robust performance. They are designed for ease of installation and reliable operation under pressure.
Pros:
- High-quality, tested materials
- Easy to install and use
- Variety of options available
Cons:
- Some users report difficulty in finding the perfect size
- Not lightweight
- Size: The thread size of the 6AN fitting is 9/16-18 UNF. It is suitable for 6AN hoses
- Parameter: Maximum working pressure: 1,500 PSI. Working temperature range: -40℉ to 250℉ (-40℃ to 121℃)
- Material: The 6AN fitting is made of high-strength 6061-T6 aluminum alloy. The hose end is black anodized to provide added corrosion and wear resistance
- Sealing: The AN side of the hose end is sealed at a 37-degree angle
- Compatibility: The male hose end straight fittings work only with stainless steel braided and nylon braided CPE hoses. They are not compatible with other types of hoses
6. AEROMOTIVE 6AN Fittings
AEROMOTIVE 6AN Fittings
AEROMOTIVE brings premium quality to its 6AN fittings. These fittings are precision machined for a perfect fit and are constructed from durable materials to withstand the rigors of high-performance applications. They are perfect for those who want only the best for their vehicle’s fuel or oil systems.
Pros:
- Precision machined for high accuracy
- Suitable for extreme conditions
- High flow and pressure ability
Cons:
- More expensive than alternatives
- Limited color options
- Size: The thread size of 6AN and AN6 ORB is 9/16-18 UNF.
- Seal: The AN side of the flare is sealed by a 37 degree angle and The ORB side is sealed with an O-ring.
- Material: Made of aluminum alloy 6061-T6 body and NBR rubber O-ring.
- Parameter: Working pressure: 1500PSI. Working temperature：-65°F-252°F. O-ring temperature range: -4°F-392°F.
- Application: Suitable for fuel rail, oil cooler, fuel pump, fuel pressure regulator, fuel filter, etc.
7. Edelbrock 6AN Fuel Line Fittings
Edelbrock 6AN Fuel Line Fittings
Edelbrock is a household name in the automotive industry, and their 6AN fuel line fittings live up to their reputation. These fittings are perfect for performance fuel lines and can easily handle high-flow applications. They are also designed for a perfect seal, reducing the risk of leaks.
Pros:
- High-quality fuel line fittings
- Designed for durability under high pressure
- Easy installation
Cons:
- Premium price point
- Limited availability in retail stores
- Precision machined for precise thread engagement
- Supplied with an O-ring
- Comes with -8 straight to -6 flare reducer
- Black anodized
- It is supplied with an O-ring
8. RUSSELL 6AN Fittings
RUSSELL 6AN Fittings
RUSSELL is synonymous with high-performance automotive solutions, and their 6AN fittings are ideal for custom applications. Made with high-quality anodized aluminum, these fittings are built to withstand extreme conditions while ensuring a secure and long-lasting connection.
Pros:
- Excellent resistance to corrosion
- Variety of colors and sizes
- Durable construction
Cons:
- Some may find them more expensive
- Installation requires precise handling
−$1.00
- Edelbrock's R&D staff is not only well qualified at their respective positions, but they're also automotive enthusiasts who do more than work in the automotive aftermarket - they live it - and it's at that point where understanding the inner workings of a supercharger, or an engine, EFI system becomes second nature..Material:Aluminum
- Whether they're manifolds, superchargers, fuel injection systems, cylinder heads, nitrous systems, or carburetors, you can rest assured that the final product was directly influenced by the passion for performance that is an integral part of our Edelbrock team.
- Every product we design and sell at Edelbrock is tested and approved by Edelbrock engineers in a real world environment on state-of-the-art equipment.
- In a day and age where we are seeing more products sent overseas to be manufactured, Edelbrock sees value in the quality control of American manufacturing by American workers and we are proud of our casting and manufacturing facilities.
- Edelbrock facilities have earned the world recognized ISO 9001: 2008 registration for quality.
9. AN6 6AN Block-Off Fittings by LDR
AN6 6AN Block-Off Fittings by LDR
The AN6 6AN Block-Off Fittings by LDR are perfect for those looking to cap off unused ports in their fuel or oil systems. Made from aluminum, they are designed for reliability and performance while providing a clean, finished appearance. They’re a simple yet effective solution for managing your lines.
Pros:
- Convenient block-off solution
- High-quality aluminum construction
- Sleek design for a professional look
Cons:
- Limited use case for performance setups
- May require additional sealing compounds
- Size: The thread size of 6an is 9/16-18 UNF.
- Seal: The AN flare is sealed at a 37 degree angle.
- Parameter: Max Working Pressure: 1500 PSI. Working Temperature Range: -65º F to 252º F.
- Material: Made of aluminum alloy 6061-T6, anodized black surface.
- Function: The fitting caps block off fuel hose line, prevent dirt and debris from entering fittings and adapters.
10. AUSTIN HOBBY 6AN Fittings Set
AUSTIN HOBBY 6AN Fittings Set
The AUSTIN HOBBY 6AN Fittings Set includes multiple fittings suitable for various automotive applications, from oil lines to fuel lines. Made of quality materials, these fittings ensure a dependable connection. This set is perfect for enthusiasts looking to customize their vehicles.
Pros:
- Comprehensive set for multiple applications
- High-quality and durable materials
- Great for DIY projects
Cons:
- May include unnecessary fittings for some users
- Not the most lightweight option
- Full Customization in One Kit : This 23-piece kit includes 10x 6AN PTFE fittings (0°/45°/90°/180°), 4x male fittings, 4x hose separator clamps and exclusive wrench protectors & Hose Reaming Tool. Mechanics-approved: 92% of jobs completed with just 1 box. No more last-minute car tuning shop runs.
- Say Goodbye to Leak : CNC-machined from high quality aluminum (not cheap cast metal!), our 37° sealing angle 6AN PTFE fuel line fittings create strong seals. Built to withstand high pressure & high temperature builds.
- Hassle-free Installation : 360° ptfe swivel hose end fittings lets you rotate fittings like a ball joint. All threads meet standard specs, compatible with 95% of AN brands. Unique to us: PTFE hose assembly tool ensures fully hose-to-ferrule contact, stopping 80% of leaks caused by DIY hose prep.
- Exclusive Wrench Protectors : Scratched AN fittings=Corrosion=Waste fuel system investment. Our AN Fittings wrench protector absorb 70% torque stress while protecting anodized fittings surfaces. Only included in BRIFITOR kits. (Notes: AN wrench is not included in this kit, you can buy it on our store).
- Versatile Application : Our 6AN PTFE fuel line kit mostly used in EFI LS system, fuel injection system, transmission system, oil cooler system, turbocharger system, ls engine swap, etc. Compatible with automotive fuels/lubricants/coolant/E85.
Buying Guide for 6AN Fittings
Introduction
6AN fittings are a popular choice in automotive and motorsport applications, particularly for fuel, oil, and cooling systems. Understanding what 6AN fittings are, their specifications, and how to choose the right ones for your project is essential. This guide will help you make an informed decision.
Understanding 6AN
- AN Standard: AN stands for Army-Navy, a standard that defines fitting dimensions. The “6” in 6AN indicates the size, with 6AN fittings having an inner diameter of approximately 3/8 inches.
- Dash Numbering: AN sizes use a ‘dash’ numbering system. The number after ‘AN’ (e.g., 6AN) relates to the inner diameter in sixteenths of an inch (6 AN = 6/16 = 3/8 inch).
Types of 6AN Fittings
- Straight Fittings: Used to connect two hoses in a straight line.
- Elbow Fittings: Available in various angles (45°, 90°, etc.) to facilitate routing around obstacles.
- T-Fittings: Allows three hoses to connect at a single point.
- Bulkhead Fittings: Typically used when passing hoses through a firewall or bulkhead.
Material Choices
- Aluminum: Lightweight and corrosion-resistant, ideal for most automotive applications.
- Steel: Offers higher strength and is ideal for high-pressure situations but is heavier and more prone to corrosion.
- Stainless Steel: Offers durability and corrosion resistance, suitable for both performance and aesthetic applications.
Compatibility
- Hose Type: Ensure that your hose is compatible with 6AN fittings. Usually, a 6AN hose will have an inner diameter of 3/8 inch.
- Thread Type: Match the thread style of your fitting with that of the other components. Common thread types include NPT (National Pipe Thread) and SAE (Society of Automotive Engineers).
Considerations When Buying
- Application: Determine the specific use case (fuel, oil, coolants) to select the appropriate material and fitting type.
- Pressure Rating: Some fittings are rated for higher pressures than others. Make sure the fittings meet the needs of your system.
- Finish: Consider the aesthetics; some fittings come in anodized finishes, while others are polished or bare.
Tools for Installation
- Wrenches: Use the right wrenches to avoid damaging the fittings.
- Torque Wrench: For precise installation, especially in high-pressure systems.
Brands and Quality
- Look for reputable brands known for high-quality products. Reading reviews can be helpful.
- Consider warranties and customer support when selecting your fittings.
Pricing
- Pricing for 6AN fittings varies based on material, brand, and complexity. While cheaper options exist, investing in higher quality can save money in the long run due to durability.
Where to Buy
- Auto Parts Stores: Many local auto parts stores carry a selection of 6AN fittings.
- Online Retailers: Websites like Amazon, Summit Racing, and Jegs have extensive inventories.
- Specialty Shops: Stores that specialize in racing or performance parts may offer a broader range of options.
Conclusion
Choosing the right 6AN fittings is crucial for the efficiency and safety of your project’s fluid systems. By considering the types, materials, compatibility, and trusted brands, you can ensure that you select the best fittings for your specific needs. Always keep your application requirements in mind, and don’t hesitate to consult with experts or professionals if you have questions. Happy purchasing!
