Best 3 Gallon Boat Gas Tanks in 2026

Bracket Tie Down: 300110, Fuel Pick Up: 1, Diesel Return: No, Sender: Swing Arm A002074, Belly Tank: No

Machined aluminum 3/8 in. withdrawl fitting with 360° swivel poplock for hook-up convenience

Ethanol and biodiesel-corrosion and pit-resistant

One of the best fuel tanks available in the industry with a 3-year limited warranty. The 6.0 gallon Dura-Tank self-sealing fuel connector, auto one-way venting, excess fuel line storage, and a built-in fuel cap retainer. Designed to withstand alchohol extended fuels.

For use on outboards up to 150hp with 3/8" hose assembly (not included)

Dimensions of tank are 18.5" x 11.5" x 11.5"

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

Meets EPA and CARB (California Air Resources Board) regulations

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

[Fuel Up with Ease]: Depend on the BISupply Boat Gas Tank 6 Gallon Boat Fuel Tank to refill your boat without stress or mess; Outboard fuel tank package includes (1) 24L tank and (1) hose for your convenience

[Built to Last]: No need to worry about this boat gas tank 6 gallon portable gas tank leaking fumes and losing gasoline before you get to the water; Marine gas tank is constructed of durable P.E. plastic to ensure maximum durability for repeated, extended use

[Easy to Fill]: Portable boat gas tank features a fine mesh input spout so you can fill this portable marine fuel tank without worrying about gunk and grime getting in the gasoline; Gas tank boat container includes an indicator to show when the tank is full or empty

Material- Boat fuel tank 3 gallon is made of high-density polyethylene as the base material，anti-aging, impact resistance, corrosion resistance . It can naturally rebound without permanent deformation after encountering an impact.

Convenient to Carry and Place- The outboard motor fuel tank equipped with an I-shaped lifting handle, which is more ergonomic, easy to carry and store，rust protection, durable, beautiful, easy to use handle design, light weight and portable, convenient to place and carry.

Two Modes of Sealing and Venting-There are two designs of fuel tank cap, which can be sealed or vented, and the metal nut can be vented and safe to use( high-quality spring designed for deflation. Unscrew the yellow metal nut to release the air in the fuel tank. Tighten the yellow metal nut and the oil tank is airtight), which helps to form a smooth fuel flow, thereby minimizing leakage.

The 3-gallon marine fuel tank is made of high-density polyethylene, which is anti-aging, impact-resistant and corrosion-resistant. It can bounce back naturally after an impact without permanent deformation.

12 Litre (3 Gallon) capacity most people call this a 12lt tank but its only 11.3LT Screw-on cap with breather vent.Standard nozzle: outboard motor(above 6HP)interface from the back holes.

Two Modes of Sealing and Venting-There are two designs of fuel tank cap, which can be sealed or vented, and the metal nut can be vented and safe to use(High-quality spring designed for deflation, Unscrew the yellow metal nut to release the air in the fuel tank. Tighten the yellow metal nut and the oil tank is airtight), which helps to form a smooth fuel flow, thereby minimizing leakage.

Function: 14.1 x 10.6 x 8.7 in. Large-capacity: 3 gallon (12L),  9.8ft Brass Fuel Hose Barb. This is an outboard fuel tank that can be used for the outboard engines.

Compatible With: For Small/Large Boats, Inflatables, Canoes And Kayaks.

Material:Made of high-density polyethylene, it will not age for a long time, has low permeability, strong corrosion resistance, impact resistance, no rust, no deformation, and long service life.

Compatible With: For Small/Large Boats, Inflatables, Canoes And Kayaks

Design: The Fuel Tank Adopts Seamless Integrated Polyethylene Fuel Tank Shell Structure, Features advanced styling and a highly functional design

Features: There is a nut with its own air exhaust, which can minimize leakage, There is also a filter in the fuel tank to filter out debris

Compatible With: For Small/Large Boats, Inflatables, Canoes And Kayaks

Design: The Fuel Tank Adopts Seamless Integrated Polyethylene Fuel Tank Shell Structure, Features advanced styling and a highly functional design

Features: There is a nut with its own air exhaust, which can minimize leakage, There is also a filter in the fuel tank to filter out debris

Integral, top tank carry handle

Diurnal cap and fuel demand valve included

Integral fuel gauge

【High Quality Marine Fuel Tank】This plastic stable fuel tank is made of durable, light ,high density polyethylene(will not chip, crack or rust),easy to carry, easy to store, safe and strong, suitable for gasoline.

【 Large Capacity 】Boat Fuel Tank have 3 gallon (12 L) and 6.3 Gallon (24L)，diameter of tank opening is 1-1/2", this is an outboard fuel tank that can be used for the outboard engines of Yamaha.

【Two Designs of the Fuel Tank Cover】The fuel tank cover can be sealed and deflated, screw cap with vent on top, including fuel collection pipe and 1/4" NPT internal threaded fuel tank accessories, molded handle on top of fuel tank.

Built to Last- This boat fuel tank is made of high density polyethylene, low permeability, anti-aging, impact resistance, won't rust, crack or chip, it can naturally rebound without permanent deformation after encountering an impact.

Fuel Up With Ease- Marine portable fuel tank 3 gallon (12 litre) includes 1 pcs fuel line and 1 pcs primer bulb, the fuel hose comes with snap-on connectors to allow quick attachment and removal of boat fuel tank and outboard engine, fuel up with ease. It's perfect for small to large boats, inflatables, canoes and even kayaks.

Scientific Design- I-shaped lifting handle design is more ergonomic. It's light weight compact, easy to carry, easy to stow, durable and strong. The outboard boat motor fuel tank cap has two function, Sealing and Venting. In addition there are separate air inlet and oil outlet, design for prevent oil from spilling.

1.Features：There is a nut with its own air exhaust, which can minimize leakage, There is also a filter in the tank to filter out debris.

2.Convenient to Carry：The tank equipped with an I-shaped lifting handle, which is more ergonomic, easy to carry and store.light weight and portable, convenient to place and carry.

3.Compatible With Kayaks, Small/Large Boats, Inflatables and Canoes.

Lightweight and Portable.

Easy to Use Handle Design, Easy to Place Horizontal Fuel Tank.

High Quality UV Stabilised Marine Fuel Tank.

Automatic vacuum valve

1/4" NPT thread to fit standard tank fittings

Designed to accommodate a strap and stack

Made of Strong UV Stabilised Plastic (polyethylene),this Outboard Fule tank is portable and light wieght compact with a convenient carry handle

Suitable for Small to Large Boats, Inflatables, Tinnies, Canoes and even Kayaks

12 Litre (3 Gallon) capacity most people call this a 12lt tank but its only 11.3LT Screw-on cap with breather vent Suitable for petrol: Leaded or Unleaded

Large Capacity: Small size, but large capacity,which is very practical.Corrosion resistant, Durable

Unique : Anti-static, explosion-proof, more safely to use; It adopts thickened explosion-proof engineering plastics, anti-static, super toughness and super long life.

Leakproof: Use of high quality plastic and rubber hose to ensure its durability and security, breathable leakproof. This is a perfect choice if you are in need of a gas fuel tank filter hose line.

Purchase reference --- Marine fuel tank connector is used for 12L 24L fuel tank connector.

Function --- Marine fuel tank connectors are professionally processed and play a good role in your use. And the fuel tank accessories are sensitive and can accurately measure the amount of fuel.

Product material---The marine fuel tank connector is made of high-quality plastic and metal materials, and has the characteristics of long-lasting and durable performance. It has undergone fine surface treatment to ensure reliable performance and longer service life. Our marine fuel tank connector is more reliable and safer. It is your ideal choice.

※ 12L 3 Gallon Gas Fule Tank Suitable for Motor fuera de borda with Marine fule line connector hose

※ Made of UV resistant stable plastic (polyethylene),Light weight,easy to carry,safe and durable

※ Capacity： 3 gallons；Most people would say it's a 12 liter gas tank, but it's only suitable for 11.3 liters.

Applicable: Compatible with Yamaha Mariner Outboard Up to 200HP and more, suitable for small to large boats, canoes, inflatable boats and kayaks

Durable Material: 12L 3 Gallon portable boat fuel tank is made of high-density polyethylene, it will not age for a long time, low permeability, strong corrosion resistance, impact resistance, no rust and deformation, long service life

Ergonomic Design: The ergonomically designed I-shaped handle is easier to carry, improves the grip feeling, makes the force evenly applied and feels better, and the portable handle design can help you easily carry fuel wherever you need it

Durable and Sturdy Material:This portable boat fuel tank is made of high-quality polyethylene, which is a durable and sturdy material that has a long service life. It can be used for small to large boats, inflatables, tinnies, canoes, and even kayaks.

Built-in Filter:The portable boat fuel tank has a built-in filter that prevents dust and other objects from falling in, ensuring the cleanliness of the fuel and your safety of use. This feature makes it a reliable and convenient choice for boat owners.

User-Friendly Design:The fuel tank has a handle design that makes it more convenient to carry, meet your various needs, and enhance your user experience. The inlet and outlet are separated to prevent oil splashing out and ensure your cleanliness when using it.

Built to Last- This boat fuel tank is made of high density polyethylene, low permeability, anti-aging, impact resistance, won't rust, crack or chip, it can naturally rebound without permanent deformation after encountering an impact.

Fuel Up With Ease- Marine portable fuel tank 3 gallon (12 litre) includes 1 pcs fuel line and 1 pcs primer bulb, the fuel hose comes with snap-on connectors to allow quick attachment and removal of boat fuel tank and outboard engine, fuel up with ease. It's perfect for small to large boats, inflatables, canoes and even kayaks.

Scientific Design- I-shaped lifting handle design is more ergonomic. It's light weight compact, easy to carry, easy to stow, durable and strong. The outboard boat motor fuel tank cap has two function, Sealing and Venting. In addition there are separate air inlet and oil outlet, design for prevent oil from spilling.

【EXQUISITE OIL VOLUME INDICATOR】 Helps you to clearly understand the changes in the oil tank and the remaining oil volume and replenish it in time. A filter is built into the air inlet of the boat gas tank 3 gallon to ensure clean fuel.

【High Quality MATERIAL】 This plastic boat gas tank 3 gallon is made of durable, light ,high density polyethylene and anti-static additives, featuring in anti-ultraviolet, anti-aging, impact resistance, corrosion resistance and acid resistance. No electric spark will be generated during friction and impact to cause explosion.

【TWO MODES OF SEALING AND VENTING】 There are two designs of fuel tank cap, which can be sealed or vented, and the metal nut can be vented and safe to use, The boat gas tank 3 gallon air inlet has a built-in filter to prevent dust and foreign objects from entering. The screw-in cap with a vent hole can automatically vent, which helps to form a smooth fuel flow, thereby minimizing leakage.