The gas tanks on boat engines are the least glamorous part on the vessel. They may not be the most visually appealing and they don’t make a boat look faster or sleeker, but they are an integral part of the boat’s fuel system and they are necessary for the boat to run at full throttle. That said, they are one of the most important and expensive parts on the boat, so it’s important to get them right.
To help you find the right fuel tank, we’ve rounded up the best boat engine fuel tanks.
Our Editor’s Best Boat Engine Fuel Tanks Reviews
- 12 Gallon capacity measures 24.5"L x 18.1"W x 11.5"H and is great for outboard engine boats and boaters who want longer running time
- Rugged one-piece; tank shell construction designed to reduce fuel evaporation and retains octane value for longer periods
- Integrated molded hand holds make transporting this fuel tank effortless
- Convenient combination fuel pick-up/sight gauge accepts standard 1/4 NPT marine tank fittings
- Molded from UV stabilized; high density polyethylene for long life
- Automatic Vacuum Valve ensures proper fuel flow and eliminates the need for manual vent and operator adjustment
- EPA/CARB COMPLIANT 6-gallon fuel tank adapts to virtually any outboard engine
- Low-permeation tank virtually eliminates fuel evaporation and fuel loss
- Compatible with 1/4" NPT fuel fittings
- Ethanol and alcohol compatible
- No More Leaks: Our marine fuel tank cap is a game-changer! It's got two nifty designs: sealed or vented. By loosening the yellow metal nut, the air inside the tank can be released. Tightening it seals the tank, facilitating smooth fuel flow and minimizing gas vapor leakage.
- Strong Compatibility: The boat gas tank comes with a 9.8 ft/3 m long fuel hose with a 0.3"/8 mm inner diameter, compatible with most marine fuel tank interfaces. It's the perfect match for your outboard motor adventures, whether you're on a fishing boat, or chilling on a deck boat.
- Built Tough: With a hefty 12 gal/55L capacity (Actually 14.53 Gallons USA), our boat fuel tank is made of high-density polyethylene, resistant to aging, impact, and corrosion. It maintains its shape even after prolonged use, ensuring security and long service life. (Note: Avoid prolonged exposure to direct sunlight to prevent product aging and the risk of expansion.)
- Easy Transport and Storage: Our portable outboard fuel tank, complete with bottom grooves, is your ticket to hassle-free transportation. From the dock to your fishing vessel or small boat, it's a breeze. Plus, its compact design fits snugly under boat seats, saving you precious space.
- Visual Fuel Level: Keep your eyes on the changes inside the marine gas tank with our handy fuel gauge. The separate inlet and outlet prevent fuel spillage, keeping gasoline away from dirt and debris. It's recommended that the tank be filled to 80% of its capacity to reduce gasoline evaporation and security risks during use.Only suitable for YAMAHA engines.
- Gallon (12L) Boat Fuel Tank: Compact Gas Can for Small Watercraft. This 3 gallon (12L) boat fuel tank serves as a portable gas can for small boats, generators, and outdoor power tools. The compact size fits limited storage spaces while providing sufficient fuel supply for extended marine trips or remote work sites.
- HDPE Construction: Impact-Resistant Diesel Fuel Can. Made of high-density polyethylene, this diesel fuel can resists fuel corrosion, UV damage, and extreme temperatures. The durable boat fuel tank prevents cracks/leaks in harsh marine environments, ensuring safe long-term fuel storage.
- 9.8ft Flexible Hose: Easy-Transport Boat Fuel Tank. This fuel tank includes a 9.8-foot flexible hose for multi-angle fueling and an ergonomic I-shaped handle. The portable gas can design enables easy carrying/maneuvering, reducing fatigue during boat fuel tank transportation and refueling.
- Dual Ports with Filter: Clean-Flow Diesel Fuel Can. This diesel fuel can features separate inlet/outlet ports to prevent spills. The built-in filter removes impurities, protecting engines with clean fuel flow. The spring-loaded cap seals the fuel tank tightly, preventing evaporation and maintaining delivery pressure.
- Multi-Use Gas Can: Marine/Outdoor Fuel Tank. This versatile gas can works as a boat fuel tank for small watercraft and as a fuel tank for generators/lawnmowers. The diesel fuel can design suits marine enthusiasts and homeowners needing reliable outdoor fuel storage.
- Gallon (24L) Boat Fuel Tank: Compact Gas Can for Small Watercraft. This 6 gallon (24L) boat fuel tank serves as a portable gas can for small boats, generators, and outdoor power tools. The compact size fits limited storage spaces while providing sufficient fuel supply for extended marine trips or remote work sites.
- HDPE Construction: Impact-Resistant Diesel Fuel Can. Made of high-density polyethylene, this diesel fuel can resists fuel corrosion, UV damage, and extreme temperatures. The durable boat fuel tank prevents cracks/leaks in harsh marine environments, ensuring safe long-term fuel storage.
- 9.8ft Flexible Hose: Easy-Transport Boat Fuel Tank. This fuel tank includes a 9.8-foot flexible hose for multi-angle fueling and an ergonomic I-shaped handle. The portable gas can design enables easy carrying/maneuvering, reducing fatigue during boat fuel tank transportation and refueling.
- Dual Ports with Filter: Clean-Flow Diesel Fuel Can. This diesel fuel can features separate inlet/outlet ports to prevent spills. The built-in filter removes impurities, protecting engines with clean fuel flow. The spring-loaded cap seals the fuel tank tightly, preventing evaporation and maintaining delivery pressure.
- Multi-Use Gas Can: Marine/Outdoor Fuel Tank. This versatile gas can works as a boat fuel tank for small watercraft and as a fuel tank for generators/lawnmowers. The diesel fuel can design suits marine enthusiasts and homeowners needing reliable outdoor fuel storage.
- No More Leaks: Our marine tank cap is a game-changer! It's got two nifty designs: sealed or vented. By loosening the yellow metal nut, the air inside the tank can be released. Tightening it seals the tank, facilitating smooth flow and minimizing leakage.
- Strong Compatibility: The boat tank comes with a 9.8 ft/3 m long fuel hose with a 0.3"/8 mm inner diameter, compatible with most marine tank interfaces. It's the perfect match for your outboard motor adventures, whether you're on a fishing boat, or chilling on a deck boat.
- Built Tough: With a hefty 6.34-gal/24-L capacity, our boat tank is made of high-density polyethylene, resistant to aging, impact, and corrosion. It maintains its shape even after prolonged use, ensuring security and long service life. (Note: Avoid prolonged exposure to direct sunlight to prevent product aging and the risk of expansion.)
- Easy Transport and Storage: Our portable outboard transfer tank, complete with the molded top handle, is your ticket to hassle-free transportation. From the dock to your fishing vessel or small boat, it's a breeze. Plus, its compact design fits snugly under boat seats, saving you precious space.
- Visual Level: Keep your eyes on the changes inside the marine transfer tank with our handy gauge. The separate inlet and outlet prevent spillage, keeping away from dirt and debris. It's recommended that the tank be filled to 80% of its capacity to reduce evaporation and security risks during use.
- Premium Construction: Our 12-liter marine outboard fuel tank is crafted from top-grade materials, ensuring durability against aging, impacts, and deformation, offering a dependable refueling solution for your needs
- Ergonomic I-Shaped Handle: Designed with an ergonomic I-shaped handle, this boat gas tank is easy to transport, enabling you to refuel your vessel conveniently wherever you are
- Fuel Level Indicator and Integrated Filter: Stay informed about fuel levels and changes within the tank with a clear fuel level indicator, ensuring timely refills. The built-in marine fuel tank air inlet filter guarantees clean fuel for optimal performance
- Dual Sealing and Venting Modes: The fuel tank cap features a golden nut that allows you to adjust between sealing and venting modes for safe operation. A high-quality spring mechanism facilitates deflation by loosening the yellow metal nut, while tightening it ensures a secure seal to minimize fuel leakage
- Fuel Pipe and Pump: Effortlessly fill your tank by squeezing the fuel pump, and enjoy hassle-free usage with the included fuel pipe, providing you with unparalleled convenience
- Premium Durability: Crafted from high-grade HDPE, this 14-gallon (55L) marine outboard fuel tank resists rust, corrosion, UV damage, and deformation, providing a long-lasting, reliable boat gas tank for your marine fueling needs
- Portable & Lightweight: This portable boat gas tank weighs up to 40% less than metal alternatives and features integrated molded hand holds, making it easy to carry, lift, and secure. Compact size fits neatly under boat seats for convenient storage
- Fuel Level Indicator & Filter: Equipped with a built-in air inlet filter and a separate inlet and outlet design, this marine fuel tank ensures clean fuel delivery while reducing debris and overflow risks for easy monitoring during marine and outdoor use
- Dual Sealing & Venting Cap: The fuel can's cap includes an adjustable yellow nut for switching between sealed and vented modes. This design minimizes fuel leaks and allows safe, controlled deflation when needed for hassle-free operation
- Universal Hose Compatibility: Includes a 10 ft flexible hose (0.24"/6 mm inner diameter) compatible with most marine tanks and fuel cans, enabling easy connection for a variety of boat gas tank and outdoor utility applications
- 2 Year Warranty
- Fuel Reserve
- ABYC/NMMA/EPA/CARB Compliant
- Rotating Fuel Withdrawal
- Low Permeation Certified
- Automotive-grade, multi-layer construction withstands the pressure build-up associated with closed fuel systems
- Cap with built-in vacuum valve means no need for manual venting
- Compatible with ¼-inch NPT fuel fittings
- Meets EPA and CARB (California Air Resources Board) regulations
- Complies with all ABYC/NMMA requirements for portable marine fuel tanks
Best Boat Engine Fuel Tanks Buying Guide
Before choosing the best boat engine fuel tank you should consider following options:
1. Fuel Tank Capacity: Fuel tank capacity depends on the size of the engine and the size of the boat. The larger the engine and the smaller the boat, the greater the ratio of tank to engine.
Generally, if you have a larger engine with a smaller boat, the tank will be smaller in proportion to the engine. If you have a smaller engine with a larger boat, the tank will be larger as a proportion of the engine.
Therefore, if you have a small engine and a large boat, you will need a larger fuel tank. If you have a large engine in a small boat, you will not need as large a fuel tank.
2. Location: Where the tank is placed has a significant impact on the overall design of the boat. Fuel tanks are generally placed in the center or stern of the boat.
In the center, the weight of the fuel is evenly distributed, allowing for a smoother ride. Placing the tank in the stern of the boat ensures it is safely behind the center of buoyancy.
3. Fuel Tank Design: Fuel tanks come in two basic designs: integral and separate. An integral tank is one that is molded into the boat, often in conjunction with the water tank.
This is the traditional fuel tank design, the kind that most people probably imagine when they think of a boat fuel tank.
It is often cheaper to manufacture, but a disadvantage is that it can be difficult to carry out routine maintenance on the tank, and it can be difficult to get to. A separate fuel tank is one that is manufactured and installed separately from the boat. This often makes it easier to get to the tank for maintenance and cleaning.
However, it will add to the overall cost of the boat. For a speed boat, fuel tanks are often separate and placed in the bow.4. Fuel Tank Location: If the tank is placed in the center of the boat, then it will be easier to get to. However, it will add weight to the middle of the boat, which can affect the way the boat handles.
Fuel tanks in the bow are often integral, and therefore more difficult to get to. However, they will not add as much weight to the ends of the boat, so there will be less effect on the way it handles.
What else you should know about boat engine fuel tanks
1. What are the dimensions of a boat engine fuel tank?
There is no definitive answer to this question as it depends on the size and make of the boat engine. However, as a general guide, most boat engine fuel tanks are around 30-60 gallons in capacity.
2. How much fuel can a boat engine fuel tank hold?
The amount of fuel that a boat engine fuel tank can hold will vary depending on the size and make of the boat.
3. What is the weight of a boat engine fuel tank?
There is no definitive answer to this question as it depends on the size and make of the boat engine fuel tank. However, a good rule of thumb is that a fuel tank weighs approximately one pound per gallon of capacity. Therefore, a 10-gallon fuel tank would weigh approximately 10 pounds.
4. What are the construction materials of a boat engine fuel tank?
The fuel tank of a boat engine is typically made of stainless steel, aluminum, or polyethylene.
5. How is a boat engine fuel tank installed?
Boat engine fuel tanks are installed by attaching them to the boat’s hull with brackets or clamps. The tank is then filled with fuel and the engine is started.
Conclusion
On the market, there are numerous best boat engine fuel tanks. Hopefully, the list of the top ten best boat engine fuel tanks will save you time researching and deciding on the best one for you.