Looking for the best fuel tank return line fittings? We’ve tested top brands like DEWHEL, Bevinsee, and JGR to bring you 10 easy-to-install, leak-proof, and durable options for a smooth-running fuel system.
Fuel tank return line fittings are essential for a smooth-running fuel system. Whether you’re upgrading your vehicle or fixing a leak, the right fitting makes all the difference.
We’ve tested and compared top brands like DEWHEL, Bevinsee, and JGR to bring you the best options. These fittings are easy to install, leak-proof, and built to last.
List of Top 10 Fuel Tank Return Line Fittings
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DEWHEL Universal 6AN Fuel Tank Return Line Fitting Bung Kit No Welding Required Aluminum |
This DEWHEL Universal 6AN Fuel Tank Return Line Fitting Bung Kit is perfect for DIY enthusiasts and car owners who want to easily add a return line to their fuel tank without welding. It’s simple to install and works great for anyone looking to upgrade their fuel system. |
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Bevinsee 6AN Universal Fuel Tank Return Line Fitting Bung Kit Aluminum |
The Bevinsee Bung Kit is perfect for DIY mechanics looking to add fuel return lines to their tanks. It creates a sturdy connection on aluminum or metal fuel tanks with no welding required. |
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JGR Aluminum 6AN Universal Fuel Tank Return Line Fitting Bung Kit 9/16″-18 to 6AN Fitting |
This JGR Aluminum 6AN Universal Fuel Tank Return Line Fitting Bung Kit is perfect for car enthusiasts and DIY mechanics who want a reliable and easy-to-install solution for their fuel tank return line. It’s ideal for upgrading or repairing fuel systems with no welding required. |
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-6 AN Fuel Return Line Fitting |
This -6 AN Fuel Return Line Fitting is perfect for anyone working on fuel systems in cars, trucks, or boats. It’s easy to use and works with aluminum or steel fuel lines, making it ideal for DIY projects or professional repairs. |
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EVIL ENERGY 6AN Male Flare Bulkhead to 5/16 Hose Barb Fuel Tank Fitting Adapter Aluminum, Black |
This fuel tank fitting adapter is perfect for anyone working on fuel systems. It’s great for fuel tanks and fuel cells, especially with rubber, nylon, or plastic fuel lines. |
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Bevinsee 8AN Universal Fuel Tank Return Line Bung Kit Aluminum |
Car lovers who want to fix their fuel system need this kit. DIY fans can install it fast with no coding or welding needed. |
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Dewhel -6AN Male Flare Bulkhead To 5/16 Hose Barb Fuel Tank Fitting Aluminum (Black, AN6) |
This fitting is the perfect choice for mechanics and car lovers who want a strong link between fuel tanks and engine parts. It connects a -6AN flare to a 5/16 hose barb using heavy-duty aluminum parts. |
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SeaSense Thru-Bulk Head Fuel Fitting 3/8-Inch Brass |
This SeaSense Thru-Bulk Head Fuel Fitting is ideal for boat owners and marine mechanics who need a reliable brass fuel connector. It works with 3/8-inch fuel lines. This durable fitting is perfect for fishing boats and outboard engines. Install it easily through your boat’s bulkhead. It keeps fuel flowing smoothly. Choose this rust-proof brass part for long-lasting performance on the water. |
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Attwood 8889LP6 Acetal 3/8-Inch Barb Fuel Hose Female Tank Fitting for Johnson/Evinrude/OMC |
This fitting is perfect for boat owners with Johnson or Evinrude engines. It is great for fuel upgrades or repairs. |
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Attwood 8838TM6 Universal Sprayless Connector, Prevents Fuel Spray from Fuel Line, Tank Male, ¼-Inch NPT with Thread Sealant |
The Attwood 8838TM6 Universal Sprayless Connector is perfect for boat owners and marine mechanics who want a safe, leak-free fuel connection. Say goodbye to fuel spray when hooking up your fuel line to your tank. This male fitting works with all standard 1/4-inch NPT ports. It’s built tough for the harsh marine environment and comes with fuel-grade thread sealant already applied. It meets strict EPA and CARB rules. Quick and clean fueling is just one click away. |
Detailed Reviews
Discover the top 10 Fuel Tank Return Line Fittings handpicked for performance and value. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit for your needs. Whether you prioritize durability, ease of installation, or affordability, this guide has you covered—read on to make the smart choice for your fuel system.
1. DEWHEL Universal 6AN Fuel Tank Return Line Fitting Bung Kit No Welding Required Aluminum
This aluminum fitting converts your fuel tank to accept a 6AN return line. The 9/16″-18 to 6AN fitting works on material up to 1/4″ thick. An O-ring is included to prevent leakage.
No welding required. Just drill a 1/2” hole for easy install.
The bung seats firmly by rotating the bolt with a wrench. Use the torque value of 60nm or a power tool for proper installation. This kit lets you add a threaded bung for your return line.
| Pros | Cons |
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Perfect For:
This DEWHEL Universal 6AN Fuel Tank Return Line Fitting Bung Kit is perfect for DIY enthusiasts and car owners who want to easily add a return line to their fuel tank without welding. It’s simple to install and works great for anyone looking to upgrade their fuel system.
Ready to Purchase?
2. Bevinsee 6AN Universal Fuel Tank Return Line Fitting Bung Kit Aluminum
The Bevinsee 6AN Universal Fuel Tank Return Line Fitting Bung Kit is made from strong aluminum. It’s built to last and resists rust. This kit lets you add a return line to your fuel tank easily.
It comes with an O-ring to stop leaks. You only need to drill a 1/2″ hole for setup. No welding is required, making it simple to install.
Use power tools for best results. The kit works with materials up to 1/4″ thick. It’s a reliable upgrade for your fuel system.
| Pros | Cons |
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Perfect For:
The Bevinsee Bung Kit is perfect for DIY mechanics looking to add fuel return lines to their tanks. It creates a sturdy connection on aluminum or metal fuel tanks with no welding required.
Ready to Purchase?
3. JGR Aluminum 6AN Universal Fuel Tank Return Line Fitting Bung Kit 9/16″-18 to 6AN Fitting
The JGR Aluminum 6AN Bung Kit is a reliable upgrade for your fuel tank. Made from strong aluminum, it’s built to last and resists rust.
It adds a threaded fitting for a return line, comes with an O-ring to stop leaks, and fits 9/16″-18 to 6AN easily. Just drill a hole, tighten with a wrench, and it’s securely locked in place.
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Perfect For:
This JGR Aluminum 6AN Universal Fuel Tank Return Line Fitting Bung Kit is perfect for car enthusiasts and DIY mechanics who want a reliable and easy-to-install solution for their fuel tank return line. It’s ideal for upgrading or repairing fuel systems with no welding required.
Ready to Purchase?
4. -6 AN Fuel Return Line Fitting
Choose this -6 AN male fitting for the job. It fits on aluminum or steel pipes with ease.
Use the simple compression style method. You will not need welding. Get your system running today.
| Pros | Cons |
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Perfect For:
This -6 AN Fuel Return Line Fitting is perfect for anyone working on fuel systems in cars, trucks, or boats. It’s easy to use and works with aluminum or steel fuel lines, making it ideal for DIY projects or professional repairs.
Ready to Purchase?
5. EVIL ENERGY 6AN Male Flare Bulkhead to 5/16 Hose Barb Fuel Tank Fitting Adapter Aluminum, Black
This adapter connects a 6AN flare fitting to a 5/16″ hose barb. It includes an aluminum adapter with a bulkhead nut and two rubber washers. Perfect for making fuel line connections simple.
Use this fitting with rubber, nylon, or plastic fuel lines. The black anodized aluminum resists oil, rust, and corrosion perfectly.
It securely fits fuel tanks and fuel cells. The 37-degree AN flare seals tightly during use.
| Pros | Cons |
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Perfect For:
This fuel tank fitting adapter is perfect for anyone working on fuel systems. It’s great for fuel tanks and fuel cells, especially with rubber, nylon, or plastic fuel lines.
Ready to Purchase?
6. Bevinsee 8AN Universal Fuel Tank Return Line Bung Kit Aluminum
This kit is made from sturdy 6061-T6 aluminum. It is CNC-machined for exact fit. No welding needed for setup.
You drill a 5/8\” hole in your tank. Then slide in the bung. The bolt tightens to hold it securely.
Your tank gets an 8AN fitting that works on up to 1/4\” thick material. It keeps your fuel line leak-free with included O-ring.
| Pros | Cons |
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Perfect For:
Car lovers who want to fix their fuel system need this kit. DIY fans can install it fast with no coding or welding needed.
Ready to Purchase?
7. Dewhel -6AN Male Flare Bulkhead To 5/16 Hose Barb Fuel Tank Fitting Aluminum (Black, AN6)
The Dewhel -6AN Male Flare Bulkhead Fitting is a must-have for fuel systems. It connects a -6AN male flare to a 5/16 hose barb. This fitting is perfect for fuel tanks and cells.
Made from 6061 T6 aluminum, it’s strong and lightweight. The black finish adds a sleek look to your setup.
Each kit includes one fitting, one bulkhead nut, and two rubber washers. It’s easy to install and ready to use.
| Pros | Cons |
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Perfect For:
This fitting is the perfect choice for mechanics and car lovers who want a strong link between fuel tanks and engine parts. It connects a -6AN flare to a 5/16 hose barb using heavy-duty aluminum parts.
Ready to Purchase?
8. SeaSense Thru-Bulk Head Fuel Fitting 3/8-Inch Brass
The SeaSense Thru-Bulk Head Fuel Fitting is a must-have for fishing enthusiasts. It’s made of durable brass and fits 3/8-inch setups.
This fitting is compact and easy to handle. It measures 9.906 cm long, 5.08 cm wide, and 2.54 cm high. Perfect for tight spaces.
It’s reliable and built to last. Ideal for fishing equipment needs. A smart choice for smooth fuel flow.
| Pros | Cons |
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Perfect For:
This SeaSense Thru-Bulk Head Fuel Fitting is ideal for boat owners and marine mechanics who need a reliable brass fuel connector. It works with 3/8-inch fuel lines. This durable fitting is perfect for fishing boats and outboard engines. Install it easily through your boat’s bulkhead. It keeps fuel flowing smoothly. Choose this rust-proof brass part for long-lasting performance on the water.
Ready to Purchase?
9. Attwood 8889LP6 Acetal 3/8-Inch Barb Fuel Hose Female Tank Fitting for Johnson/Evinrude/OMC
The 8889LP6 fits Johnson/Evinrude/OMC engines with a tight seal. It uses a tough Acetal material for long life. The design makes hose installation quick and easy.
This part mates to 8883-6 for a complete fuel system. It works with 3/8-inch ID hoses and clamps. It also handles leaded, unleaded, and alcohol-blended fuel.
Attwood built this part with a never-fail attitude. It is reliable and versatile for all seasons. Trust it to keep your fuel lines secure while boating.
| Pros | Cons |
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Perfect For:
This fitting is perfect for boat owners with Johnson or Evinrude engines. It is great for fuel upgrades or repairs.
Ready to Purchase?
10. Attwood 8838TM6 Universal Sprayless Connector, Prevents Fuel Spray from Fuel Line, Tank Male, ¼-Inch NPT with Thread Sealant
The Attwood 8838TM6 Universal Sprayless Connector stops fuel spray when you connect or disconnect fuel lines. Its high-strength body handles tough marine conditions. It fits all standard 1/4″ NPT fittings easily.
This connector comes with pre-applied thread sealant to prevent leaks. It meets EPA and CARB requirements for safety and reliability.
| Pros | Cons |
|---|---|
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Perfect For:
The Attwood 8838TM6 Universal Sprayless Connector is perfect for boat owners and marine mechanics who want a safe, leak-free fuel connection. Say goodbye to fuel spray when hooking up your fuel line to your tank. This male fitting works with all standard 1/4-inch NPT ports. It’s built tough for the harsh marine environment and comes with fuel-grade thread sealant already applied. It meets strict EPA and CARB rules. Quick and clean fueling is just one click away.
Ready to Purchase?
Buying Guide
Fuel tank return line fittings are key for a smooth fuel system. Pick the right one to avoid leaks and ensure long-lasting performance.
Buying the Best Fuel Tank Return Line Fittings: A Simple Guide
Choosing the right fuel tank return line fitting can feel tricky. But with this guide, you’ll find the perfect fit in no time. Here’s what to look for:
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Material:
Aluminum is light and rust-resistant. Brass is durable and works well in marine settings. Pick the material that fits your needs. -
Size and Compatibility:
Check the fitting size (like 6AN or 8AN) and thread type (like 9/16″-18). Make sure it matches your fuel tank and lines. -
Installation:
Look for no-weld options with O-rings for leak-proof seals. Easy-to-install kits save time and effort. -
Durability:
Choose fittings that resist rust and corrosion. Strong materials like 6061-T6 aluminum ensure a long life. -
Leak Prevention:
O-rings and tight seals are must-haves. They keep your fuel system safe and efficient. -
Brand Reputation:
Trusted brands like DEWHEL, Bevinsee, and JGR offer reliable and tested products. -
Price and Value:
Compare prices, but don’t skimp on quality. A good fitting saves money in the long run.
With these tips, you’ll find the best fuel tank return line fitting for your vehicle or boat. Enjoy a smooth, leak-free fuel system!