Best Boat Fuel Tanks in 2024

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Combined with proper maintenance and safe operation, a high-quality marine fuel tank can push your boating experience forward by enabling reliable engine performance and extended range. Not all fuel storage options use sturdy materials or thoughtful designs.

We have rounded up the best boat fuel tanks that brought proven functionality to users and aided them in their marine adventures. The Moeller Marine Topside Fuel Tank is our top pick with its durable construction.

The 6 Best Boat Fuel Tanks in 2024

1. Best Overall: Moeller Marine Topside Fuel Tank

Moeller Marine Fuel Tank

The Moeller Marine Topside Fuel Tank is a reliable and sturdy option if you need a top-quality boat fuel tank.


  • Durable, UV-stabilized, cross-linked poly construction for versatile topside mounting
  • Designed to handle corrosive ethanol fuels
  • Sizes from 14-gallon up to 24-gallon
  • Compliant with ABYC, NMMA, and U.S. Coast Guard regulations


  • May require seat adjustments to fit certain boat models

Our experience with the Moeller Marine Topside Fuel Tank has left us with a positive impression. This universally fit fuel tank ensures both strength and durability due to its UV-stabilized, cross-linked poly construction.

We’ve noticed that this tank is also great for handling corrosive ethanol fuels, which is essential for harsh marine environments.

During our time using the Moeller Marine Topside Fuel Tank, we were impressed with how it conforms to the standards set forth by ABYC, NMMA, and the U.S. Coast Guard. This added level of safety and reliability made us feel more confident on the waters.

Some seat adjustments might be necessary to fit the tank to specific boat models, such as Boston Whalers or Carolina Skiffs.

Overall, the Moeller Marine 031818 Topside Fuel Tank is a dependable option for marine fuel storage, offering durability and adherence to safety regulations.

2. Best Portable: Scepter OEM Portable Marine Fuel Tank

Scepter Fuel Tank

The Scepter Marine Fuel Tank is a reliable option for individuals seeking a durable and easy-to-transport fuel tank for their outboard engine boats.


  • Easy to transport with molded top handle
  • Compact design for convenient under-seat storage
  • Durable, UV-stabilized, and crush-resistant construction


  • Compatibility limitations with specific connectors

Using the Scepter Marine Fuel Tank out on the water, we found it to be sturdy and practical. Its molded top handle made it easy to carry from the dock to our small boat, while its compact design allowed us to store it conveniently under the seat.

We appreciated the durability of this fuel tank, constructed from UV-stabilized and rust-resistant HDPE. The seamless, one-piece polyethylene design ensured a crush-resistant and sturdy option for years of use, compatible with gasoline and ethanol-blended fuels.

The combination fuel pick-up and sight gauge on the Scepter Portable Marine Fuel Tank was a useful feature, but we noticed that it could have compatibility limitations with specific connectors, such as right-angle Evinrude/Johnson/OMC options.

The Scepter Portable Marine Fuel Tank is an excellent choice for those seeking a durable, easy-to-transport, and compact fuel storage solution for their outboard engine boats.

3. Best Marine Fuel Tank with Gauge: Ariat Attwood 8806LP2 Portable Marine Fuel Tank

ARIAT attwood 8806LP2

The ARIAT attwood 8806LP2 is an excellent choice for anyone in need of a reliable and durable marine fuel tank with a built-in gauge.


  • EPA and CARB (California Air Resources Board) certified
  • Built-in vacuum valve in cap
  • High-quality, multi-layer construction


  • Plastic fuel line adapter
  • Pressure relief on cap may sometimes be stuck

The ARIAT attwood 8806LP2 is a 6-gallon portable marine fuel tank that meets EPA and CARB regulations, ensuring that it’s an environmentally friendly option.

We found the multi-layer construction to be sturdy and capable of withstanding the pressure associated with closed fuel systems. The cap has a built-in vacuum valve, eliminating the need for manual venting, which is a great convenient feature.

One downside of this fuel tank is the plastic fuel line adapter. While it didn’t cause us any issues during our tests, we could see how it might not be as durable as a metal one.

Additionally, the pressure relief on the cap was stuck on one of our tanks, but we were able to open it up easily and relieve the pressure.

Overall, the ARIAT attwood 8806LP2 is a solid choice for those looking for a portable marine fuel tank.

Its environmentally friendly certifications and various features make it a worthwhile investment. Just be aware of the potential downsides we mentioned and treat the tank with care to ensure its longevity.

4. Most User-Friendly Marine Fuel Tank: Scepter Neptune Marine Fuel Tank

Scepter Neptune Portable Marine Fuel Tank

Ideal choice for those seeking a durable and easy to transport marine fuel tank, suitable for small boat adventures.


  • Easy to transport with dual molded top handles
  • Compact and slim design for convenient storage
  • Durable, UV-stabilized, rust and corrosion-resistant HDPE construction


  • Limited 3-gallon capacity
  • Fuel outlet may appear less robust

The Scepter Neptune Portable Marine Fuel Tank impresses us with its portability and thoughtful design. Its dual molded top handles make it easy to carry from the dock to our small fishing boats and dinghies.

The slim profile and molded-in feet keep the tank off the floor, providing increased ventilation and stability, perfect for storing under a seat.

The 2-way vented cap and automatic air inflow valve system ensure that air enters the tank during operation, while still maintaining an ideal pressure level.

This marine fuel tank is also made of high-density polyethylene (HDPE), making it resistant to UV light, rust, and corrosion. This robust material contributes to the tank’s long-lasting performance in various marine environments.

However, some users might find the 3-gallon capacity limiting for extended outings, so keep this in mind if you require more fuel. Additionally, the fuel outlet connection could be more robust, but it has held up well in our experience so far. This fuel tank might not be suitable for larger boats or extended usage without repeated refueling; nevertheless, we recommend it for those who value a compact, durable, and portable marine fuel tank option.

5. Best High-Capacity Marine Fuel Tank: Moeller Marine Topside Fuel Tanks, Direct Sight Gauge

Moeller Marine Topside Fuel Tank

We highly recommend this fuel tank for its outstanding performance and quality construction, especially for boaters who prioritize reliability.


  • High-quality, durable materials
  • UV-stabilized resin prevents sun damage
  • Generous 22-gallon capacity


  • Bulky design may not suit all boats
  • Not suitable for boats built after 2011

The Moeller Marine Topside Fuel Tanks are among the most reliable marine fuel tanks we have come across. The 22-gallon capacity ensures you have enough fuel for long trips, taking away the concerns of running out of fuel in the middle of the water.

We particularly appreciate the UV-stabilized resin used in its construction, protecting the tank from sun damage and prolonging its life.

One of the potential downsides to this tank is its bulky design. It may not fit perfectly well in all boat models, particularly in those with limited deck space.

Although, its dimensions specifically cater to Carolina Skiff, Boston Whaler, and Key West bench style boats. Boat owners should be cautious while installing the tank to avoid pinching the fuel line due to hydrocarbon swell.

The Moeller Marine Topside Fuel Tanks are an excellent choice if you need a dependable and high-capacity fuel tank for your boat. The UV-stabilized resin provides increased durability, and its cross-linked poly construction supports long-lasting performance.

This product is ideal for those with boats built before 2011, as it conforms to all ABYC, NMMA, and U.S. Coast Guard regulations.

6. Best Versatile Marine Fuel Tank: Scepter Marine Rectangular Fuel Tank

Scepter Marine Fuel Tank

A reliable and durable fuel tank for boaters looking to extend their running time without needing frequent refueling. Available in the following sizes: 3, 6, 9 and 12-gallon.


  • Convenient up to 12-gallon capacity for longer trips
  • Rugged construction and UV stabilized material for durability
  • Integrated handholds for easy transport


  • May experience swelling due to pressure buildup
  • Requires additional connector fittings

We recently had the chance to use the Scepter Marine 08667 Rectangular Fuel Tank on a boat trip, and it did not disappoint. With its 9-gallon capacity, it allowed us to travel further distances without worrying about having to refuel frequently.

This is especially helpful for those with outboard engine boats or anyone who wants to maximize their time on the water.

The tank is made from high-density, UV-stabilized polyethylene, meaning it’s built to last. It’s also designed with a one-piece shell that helps reduce fuel evaporation and maintain the octane quality of the fuel for longer periods.

We found it easy to carry thanks to the integrated molded handholds, making transportation and installation a breeze.

One issue we faced was the swelling of the tank due to pressure buildup, as the tank doesn’t vent below 5 PSI. However, this is a result of new EPA regulations, so it’s important to understand that the tank is designed to handle this pressure safely.

Additionally, note that you’ll need to purchase connector fittings separately for your gas line, as they’re not included with the tank.

The Scepter Marine Rectangular Fuel Tank is a great investment for boaters looking for a durable, high-capacity fuel tank to extend their adventures on the water.

What safety features to look for in a boat gas tank?

When choosing a boat gas tank, we must consider several safety features to ensure smooth sailing and avoid potential hazards.

Safety should always be a priority, and it’s essential to understand that not all fuel tanks are created equal in this regard.

The material used in constructing the tank is the first thing we ought to examine. Marine fuel tanks are commonly made from aluminum, polyethylene, or stainless steel.

Each material has its pros and cons, but it’s essential to select a tank with corrosion-resistant properties. Aluminum and stainless steel are both corrosion-resistant materials, while polyethylene is a non-corrosive plastic.

Another critical safety feature is the presence of a venting system. Proper ventilation ensures that fumes won’t accumulate and create a hazardous environment.

The vent should be located away from ignition sources and any enclosed spaces to prevent potential explosions.

The construction of the fuel tank should also undergo scrutiny. Look for tanks with robust construction and secure connections, resistant to cracks, leaks, and other damage.

A double-walled design can enhance protection against leakage as it provides an extra layer between the fuel and the environment.

Additionally, secure mounting brackets and straps should be used to hold the tank in place, preventing movement that could lead to damage.

An efficient fuel-level indicator is also important for safety. A reliable gauge or sensor can help us monitor the fuel levels in the tank and plan refueling stops accordingly. Accurately knowing how much fuel is left prevents running out of fuel in dangerous or inaccessible locations.

Lastly, examine the fuel tank’s compatibility with the type of fuel you plan to use.

Marine fuel tanks should be designed to handle the specific fuel type being used, whether gasoline, diesel, or other alternatives. Incompatible materials can lead to leaks, contamination, and other hazards.

>>Check out the best price for Moeller Marine Topside Fuel Tank

Buying Guide for the Best Marine Fuel Tanks

When selecting the best marine fuel tank for your needs, there are several key factors to consider. We’ll help you make the right choice by discussing materials, size, shape, additional features, and regulations that may apply.


Marine fuel tanks are typically made from one of three materials: aluminum, stainless steel, or high-density polyethylene (HDPE) plastic. Each material offers its own benefits:

  • Aluminum: Lightweight, corrosion-resistant, and highly durable. Often used for larger tanks.
  • Stainless Steel: Heavy, strong, and less prone to punctures. Highly resistant to rust and corrosion.
  • HDPE Plastic: Lightweight, corrosion-free, and UV-resistant. Good choice for small to medium-sized tanks.

Consider your specific needs, such as weight limitations and budget, when choosing the material.

Size and Shape

The size and shape of your marine fuel tank will depend on the available space on your watercraft and the desired fuel capacity. Measure the area where the tank will be placed and take note of any obstacles or angled surfaces.

Rectangular and cylindrical tanks are the most common shapes, but customized shapes may be necessary to maximize space. Keep in mind that larger tanks will obviously hold more fuel, but they can be heavy and harder to fit in tight spaces.

Additional Features

Some marine fuel tanks come with added features to enhance the user experience. Look for features like:

  • Fuel gauge: Allows you to easily monitor the fuel level.
  • Fuel line fittings: Ensure compatibility with your boat’s fuel system.
  • Mounting brackets or tabs: Help secure the tank in place.

Consider your specific use and preferences when determining which additional features are important to you.

Regulations and Requirements

Before making a purchase, it’s crucial to verify that the marine fuel tank you’re considering meets any applicable regulations and requirements. These may include:

  • United States Coast Guard (USCG) regulations: Ensure compliance with USCG safety standards for marine fuel tanks.
  • Environmental Protection Agency (EPA) regulations: Compliance with EPA regulations is critical, as they pertain to fuel system components and emissions.
  • American Boat and Yacht Council (ABYC) standards: The ABYC develops voluntary safety standards for the design, construction, and maintenance of recreational boats.

Confirm that the marine fuel tank you’re considering meets these requirements to ensure a safe and responsible boating experience.

>>Check out the best price for Moeller Marine Topside Fuel Tank

Frequently Asked Questions

What is the ideal capacity for boat fuel tanks?

The ideal capacity for marine fuel tanks depends on the size of your boat, engine requirements, and intended use. Generally, we recommend a fuel tank that can provide an adequate cruising range for your planned trips, allowing for reserve fuel in case of emergencies.

What factors affect marine fuel tank durability?

Several factors can impact the durability of a marine fuel tank, including:

  1. Material: Some materials are more resistant to corrosion, punctures, and damage than others.
  2. Construction: Welded seams and connections may be more susceptible to leaks or failures.
  3. Installation: Proper installation ensures the tank is adequately supported, preventing damage from vibrations or impacts.
  4. Usage: Regular exposure to harsh marine environments and fuel types can affect the tank’s lifespan.
  5. Maintenance: Regular inspection and cleaning can prolong the life of your fuel tank.

What is the best material for marine fuel tanks?

The best material for marine fuel tanks varies depending on your specific needs and preferences. Common materials include aluminum, stainless steel, and polyethylene plastic.

Aluminum is lightweight, corrosion-resistant, and recyclable, making it a popular choice. Stainless steel offers excellent durability, but it can be more expensive and heavier than other options. Polyethylene plastic is budget-friendly with excellent impact resistance, but it may not be suitable for all fuel types.

How do I choose the correct fuel tank fittings for my boat?

Selecting the right fuel tank fittings for your boat depends on the type and model of your boat, as well as the specific fuel tank you’re using.

We recommend reviewing your boat’s specific requirements, consulting your owner’s manual, or consulting with a marine professional.

What are the maintenance requirements for marine fuel tanks?

Regular maintenance is essential for ensuring the longevity and performance of your marine fuel tanks. Key maintenance tasks include:

  1. Regularly inspecting the tank for signs of corrosion, cracks, or leaks.
  2. Cleaning the fuel tank to remove debris and prevent clogs.
  3. Checking connections and seals for wear or damage.
  4. Replacing fuel filters as needed to keep your fuel supply clean.
  5. Monitoring the fuel tank for any signs of ventilation problems or excess pressure buildup.

>>Check out the best price for Moeller Marine Topside Fuel Tank

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