Best 6-Gallon Boat Gas Tanks of 2026

The Attwood 8806LPG2 6-Gallon Portable Marine Boat Fuel Tank is a great choice for boaters looking for a reliable and durable fuel tank. It features an automotive-grade, multi-layer construction that can withstand the pressure build-up associated with closed fuel systems, and a cap with a built-in vacuum valve for easy venting. It meets EPA and CARB regulations, and complies with all ABYC/NMMA requirements for portable marine fuel tanks. Customers report that it works perfectly, is easy to use, and is a great bargain.

The GarveeTech Marine Transfer Tank is designed to make your boating fuel management easy and reliable. It comes with a hose that fits most marine fuel systems, so you can connect it to your boat without hassle. The clear fuel level indicator helps you keep an eye on your fuel supply, preventing unexpected runouts. Its built-in air filter ensures that only clean fuel reaches your engine, which helps maintain smooth performance. Plus, with a simple manual squeeze pump, you can fill the tank quickly and effortlessly. These features combine to give you a convenient and efficient fueling experience on the water.

The Moeller Marine EPA-Compliant Topside Fuel Tank is a 6-gallon polyethylene tank with an overall dimension of 13 1/2" W x 21 1/4" L x 10" H w/ Cap. It is designed for vehicle-specific fit and comes with a gauge. Customers have praised its quality and sturdiness, but noted that the EPA-mandated cap can be prone to leaking or not venting.

The GarveeTech Marine Tank is designed for easy and reliable fuel transfer on your boat. Its unique cap design lets you choose between sealed or vented modes, helping you control airflow and avoid leaks during use. With a 9.8-foot fuel hose compatible with most marine engines, you get great flexibility for various boats like fishing or deck boats. The tank is built from durable high-density polyethylene, resisting damage and corrosion, so it stays strong over time. Plus, the molded handle makes it simple to carry and transport, fitting neatly under your boat’s seat for convenient storage.

The ActiveTrail Marine Fuel Tank is built from tough, high-density polyethylene, making it strong against impacts, corrosion, and sun damage, so you can trust it on the water. It features a clear fuel level indicator, allowing you to easily check your gasoline without any guesswork, helping you avoid surprises. The tank also includes a built-in fuel filter and a dual venting cap, protecting your boat engine from dirt and ensuring safe fuel flow. Its I-shaped handle makes carrying and pouring comfortable and secure, while the 3-gallon size offers a great balance between enough fuel and easy portability for your boating trips.

The LEISULIF Portable Fuel Tank is a handy 6-gallon container perfect for small boats, generators, and outdoor tools. Its compact size fits tight spaces while giving you enough fuel for longer trips or work. Made from tough high-density polyethylene, this tank stands up to harsh marine conditions and protects against leaks, UV rays, and temperature changes. With a 9.8-foot flexible hose, it’s easy to fuel your engine from different angles without hassle. Plus, the ergonomic handle helps you carry and pour fuel comfortably. This tank keeps your fuel clean and secure, making refueling safer and simpler wherever you go.

The BouPower Marine Gas Tank offers a reliable and user-friendly fuel solution for your boating needs. Its dual-mode cap lets you control pressure easily, reducing vapor leaks and making fuel transfer smoother. You’ll appreciate the long 9.8-foot hose that fits most marine engines, giving you versatility for various boats. Made from durable high-density polyethylene, this tank resists impacts and corrosion, promising long-lasting use. Plus, the clear fuel level indicator keeps you informed about when it's time to refill, while the built-in filter ensures your engine gets clean fuel for peak performance. This tank is designed to keep your trips safe and hassle-free.

The Frigenarro Marine Fuel Tank is built from durable, UV-resistant HDPE, ensuring it can handle impacts, resist corrosion, and last over time. Its adjustable cap offers both sealing and venting options, helping you avoid fuel spills and operate safely. You can easily check your fuel level thanks to a clear indicator, so you always know when it’s time to refill. Plus, the built-in air filter keeps dirt and impurities out of your engine’s fuel, helping it run smoothly. Designed with a comfortable I-shaped handle, this tank is easy to carry wherever you need it, making refueling your boat simple and hassle-free.