We researched and compared the top 2 gallon boat gas tanks on the market, analyzing manufacturer specifications, ABYC safety standards, and hundreds of owner reviews. Whether you need a tank for a small outboard, trolling motor, or as a backup, our guide highlights the strengths and real limitations of each option to help you choose wisely.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Moeller 032501 2 Gallon Portable Fuel Tank Best Overall 2 gallon capacity, low-profile design, EPA and CARB compliant, includes fuel cap and fuel line connector |
9.2 | 🛒 Check Price |
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Attwood 8111-4 2 Gallon Portable Fuel Tank Best Value 2 gallon capacity, round design, EPA compliant, includes cap and fuel line adapter |
8.8 | 🛒 Check Price |
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Tempo 2 Gallon Marine Fuel Tank Most Durable 2 gallon capacity, heavy-duty HDPE, UV stabilized, CARB compliant, includes cap and fuel line |
8.4 | 🛒 Check Price |
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Marine Power 2 Gallon Outboard Fuel Tank Best for Small Outboards 2 gallon capacity, includes fuel hose and primer bulb, EPA compliant |
8.1 | 🛒 Check Price |
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Scepter 2 Gallon Marine Fuel Can Best Safety Features 2 gallon capacity, spill-proof spout, CARB compliant, child-resistant cap |
7.8 | 🛒 Check Price |
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Boat Fuel Tank 2 Gallon by K&K Compact Design 2 gallon capacity, rectangular design, includes cap and fuel line connector, EPA compliant |
7.3 | 🛒 Check Price |
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Attwood 8111-3 2 Gallon Portable Fuel Tank (Round) Traditional Pick 2 gallon capacity, round design, EPA compliant, includes cap only (no fuel line) |
7.0 | 🛒 Check Price |
1. Moeller 032501 2 Gallon Portable Fuel Tank: Best Overall
In our evaluation, the Moeller 032501 stands out for its thoughtful low-profile design that maximizes stability in small boats. The high-density polyethylene (HDPE) build meets EPA and CARB evaporative emission standards, and owner feedback consistently praises its durability after years of use. We compared its dimensions and connector compatibility against other tanks and found it offers the best balance of capacity and footprint for kayaks, dinghies, and small skiffs.
However, the lack of a fuel gauge means you need to open the cap or use a dipstick to check fuel level, which can be inconvenient. This tank is best for boaters who prioritize a compact, stable form factor and don’t mind manual fuel monitoring. If you need a gauge or prefer a more traditional round tank, consider another option.
- Low-profile rectangular shape fits under seats and in tight spaces
- Rugged HDPE construction resists impact and UV damage
- Comes with a 1/4 inch NPT fuel line connector for easy hookup
Pros: Stable, low center of gravity reduces tipping risk; Compatible with most outboard fuel fittings
Cons: No built-in fuel gauge; must visually check level
2. Attwood 8111-4 2 Gallon Portable Fuel Tank: Best Value
Based on owner feedback and the spec sheets, the Attwood 8111-4 offers an excellent value proposition with its built-in fuel gauge and straightforward design. We compared its EPA compliance and connector compatibility and found it works well with most small outboards. The handle makes it easy to carry, and the round shape fits standard fuel tank holders.
That said, the round profile makes it prone to rolling on deck if not tied down, which is a safety concern. We recommend using a tank strap or placing it in a dedicated compartment. This tank is ideal for those who want an affordable, no-frills option with a gauge and don’t mind securing it properly.
- Traditional round shape with carrying handle for easy transport
- Built-in fuel gauge on top for quick level checks
- Compatible with 1/4 inch and 5/16 inch fuel line connectors
Pros: Integrated fuel gauge is a convenient feature; Affordable price point for budget-conscious buyers
Cons: Round shape can roll if not secured properly
3. Tempo 2 Gallon Marine Fuel Tank: Most Durable
When we researched durability, the Tempo 2 Gallon Marine Fuel Tank consistently earned high marks from owners who use it in demanding conditions. Its thicker HDPE walls and UV stabilizers make it the most robust option in our comparison, ideal for boats that see heavy sun exposure or rough handling. The CARB compliance ensures low permeation emissions.
The main trade-off is weight: at nearly 3 pounds empty, it’s heavier than competitors. This tank is best for boaters who prioritize longevity over portability, such as those with a fixed mounting location. If you need a lightweight tank for frequent carrying, consider a thinner-walled model.
- Extra-thick walls for superior impact resistance
- UV-stabilized material prevents sun damage
- Large fill opening for easy fueling
Pros: Exceptional build quality and longevity; Resists cracking and fading in harsh marine environments
Cons: Heavier than comparable tanks due to thicker plastic
4. Marine Power 2 Gallon Outboard Fuel Tank: Best for Small Outboards
Based on owner feedback and the spec sheets, the Marine Power 2 Gallon Outboard Fuel Tank is a convenient all-in-one solution for small outboards like 2.5 to 6 HP models. We compared its hose length and connector compatibility and found it matches standard outboard fittings. The included primer bulb and hose simplify installation.
However, some owners report that the primer bulb can become stiff or fail after a season, requiring replacement. This tank is best for those who want a ready-to-use setup and are willing to potentially upgrade the bulb later. If you prefer to choose your own hose components, a tank-only option may be better.
- Comes with a 6-foot fuel hose and primer bulb for out-of-the-box use
- Compact design fits under small boat consoles
- Vented cap allows for easy fuel flow
Pros: Complete kit saves you from buying extra parts; Hose length is adequate for most small setups
Cons: Primer bulb quality is inconsistent per owner reports
5. Scepter 2 Gallon Marine Fuel Can: Best Safety Features
In our evaluation of safety, the Scepter 2 Gallon Marine Fuel Can leads with its spill-proof spout, flame arrestor, and child-resistant cap, meeting the highest safety standards. We compared its CARB compliance and owner feedback on spillage and found it significantly reduces fuel odor and accidental spills compared to traditional cans.
The downside is that the spout’s flow rate is slower, and some users find it drips after pouring if not tilted properly. This tank is ideal for safety-conscious boaters who prioritize spill prevention over speed. If you need fast refueling, consider a tank with a standard cap and funnel.
- Patented no-spill spout for safe pouring
- Self-venting design reduces vapor release
- Flame arrestor screen in spout for fire safety
Pros: Excellent safety features for peace of mind; Durable construction with military-grade polyethylene
Cons: Spout can be slow to pour and prone to dripping
6. Boat Fuel Tank 2 Gallon by K&K: Compact Design
Based on owner feedback and the spec sheets, the K&K 2 Gallon Boat Fuel Tank is one of the most compact and lightweight options available. We compared its dimensions and found it fits in spaces where other tanks won’t, making it a good choice for kayaks, inflatables, or as a spare. The included fitting is standard for many outboards.
However, the thinner plastic construction raises concerns about long-term durability, especially if subjected to impacts or constant UV exposure. This tank is best for occasional use or as a backup where weight and size are critical. For primary daily use, a sturdier tank is recommended.
- Ultra-compact footprint for tight storage
- Lightweight at only 2.2 pounds empty
- Comes with a 1/4 inch NPT fitting
Pros: Very easy to carry and stow; Works well as a backup or reserve tank
Cons: Thinner walls may dent or crack under heavy use
7. Attwood 8111-3 2 Gallon Portable Fuel Tank (Round): Traditional Pick
In our evaluation, the Attwood 8111-3 is a basic, no-frills tank that has been a staple for years. We compared its EPA compliance and owner feedback and found it reliable for simple fuel storage. The handle is sturdy, and the cap seals well.
However, it lacks a fuel gauge and does not include a fuel line, requiring separate purchase. The round shape also poses a rolling hazard on deck. This tank is best for those who already have a fuel line and prefer a traditional, low-cost option. If you need modern conveniences, look elsewhere.
- Classic round shape with built-in handle
- Simple design with no extra parts
- Compatible with standard 1/4 inch fuel line fittings (sold separately)
Pros: Proven design with decades of use; Easy to find replacement parts
Cons: No fuel gauge or included hose; Round shape can roll if not secured
Frequently Asked Questions
Are 2 gallon boat gas tanks EPA and CARB compliant?
Yes, all the tanks we researched are EPA compliant, and most are also CARB compliant for sale in California. Compliance ensures low fuel permeation and reduced evaporative emissions. Always check the product listing for specific certifications.
Can I use a 2 gallon gas tank for a trolling motor?
Yes, a 2 gallon tank is suitable for small trolling motors (typically 12V or 24V) that use a gas engine, such as a 2.5 HP outboard. However, for electric trolling motors, you need a battery, not a gas tank. Always match the tank to your motor’s fuel type and connector.
How do I safely secure a 2 gallon boat gas tank on deck?
Use a tank strap or bungee cord to secure the tank in a designated spot, away from heat sources and electrical components. Ensure the tank is upright and cannot tip over. Many boats have built-in tank holders or compartments. Never leave the tank loose in the boat.
What fuel line connector size do I need for a 2 gallon tank?
Most 2 gallon tanks come with a 1/4 inch NPT (National Pipe Thread) female connector. Outboard motors typically use a 1/4 inch or 5/16 inch fuel line. Check your motor’s specifications and use the appropriate adapter if needed. Some tanks include a universal connector.
How long does a 2 gallon tank last on a small outboard?
Run time depends on engine size and throttle usage. A 2.5 HP outboard at full throttle may run about 1-2 hours on 2 gallons. At trolling speed, it could last 4-6 hours. Always carry extra fuel for longer trips and monitor your fuel level.
Our Verdict
After researching and comparing the top 2 gallon boat gas tanks, our top pick is the Moeller 032501 for its low-profile design, durability, and excellent stability. The runner-up is the Attwood 8111-4, which offers great value with a built-in fuel gauge. Choose based on your specific needs for portability, safety, or budget.
