Looking for a reliable gas tank replacement for a portable generator? This guide identifies five generator fuel tanks that fit common Honda, Predator, Champion, and other brands. Each option is described with who it’s best for, key features, and practical limits. Use this to compare capacity, mounting dimensions, and whether a vent valve is included. The top picks are aimed at common mid-range home, job-site, and recreational use.
| Product | Capacity | Best For |
|---|---|---|
| JJing Universal 7 Gallon Tank | 7 gal | Owners needing built-in fuel gauge and broad compatibility |
| JJing Universal 5 Gallon Tank | 5 gal | Smaller gennies or tighter spaces |
| Sportpules Universal 5 Gallon Tank | 5 gal | Budget-friendly, portable storage |
| Scepter Duramax Flo ’N Go 14 Gallon | 14 gal | Mobility and large fueling tasks |
| Automost 7 Gallon Tank | 7 gal | Multi-brand compatibility with included hardware |
JJing Universal 7 Gallon Generator Gas Tank
This 7-gallon tank is designed for multiple Honda models and other brands, offering fuel gauge and rubber grommets built in. Note that it does not include a vent valve. Best for: generators that require a gauge and a broad compatibility range, including many Honda EC6500/EM6500 family units. Limitations: lacks vent valve, and true capacity runs slightly under 7 gallons, which is common in the market.
JJing Universal 5 Gallon Generator Gas Tank
This 5-gallon tank fits many 3200–4750 watt class generators, with mounting dimensions of 20″ length, 13.19″ width, and 5.9″ height. It includes fuel gauge and grommets but no vent valve. Best for: smaller or mid-sized generators and those who need a compact, gauge-equipped tank. Limitation: no vent valve, which can matter for vented systems.
Sportpules Universal 5 Gallon Tank
Sportpules offers a 5-gallon gas tank with a focus on portability and versatile use beyond generators, including lawn equipment. Best for: users seeking a durable, lightweight tank for on-the-go storage and simple fueling tasks. Caution: check mounting compatibility with your specific generator model as dimensions are important for fit.
Scepter Duramax Flo ’N Go 14 Gallon Gas Caddy
A large capacity fuel caddy with wheels and a manual pump, ideal for lawn care, marine, or farm tasks. Best for: users needing to transport and dispense large fuel amounts with ease. Better for: frequent fueling at the job site rather than compact, stationary generator setups. Limitation: heavier and bulkier than smaller tanks; may be less suited to compact generator housings.
Automost 7 Gallon Universal Tank
Automost markets a 7-gallon tank compatible with multiple Honda models and Predator units, including a complete hardware kit. Best for: buyers who want a robust replacement with included mounting hardware. Caution: ensure exact mounting holes align with your generator to avoid misfit issues, as dimensions can vary among models.
Buying Guide
How to choose the right generator gas tank:
- Capacity and space: Match the tank capacity to your generator’s fuel needs and the available mounting space.
- Mounting dimensions: Compare hole-to-hole measurements (length, width) and overall size to ensure a proper fit.
- Vent valve: Decide if you need a vented tank. If your generator requires venting, avoid non-vented options.
- Fuel gauge: Consider whether a built-in gauge helps with monitoring fuel levels between refuels.
- Hardware included: Check if grommets, bolts, petcocks, or lines are included to save setup time.
- Brand compatibility: Look for tanks advertised as compatible with your generator’s brand or model family.
Frequently asked questions
Do all generator tanks include a vent valve?
No. Some options, including several listed here, do not have vent valves. If venting is required, choose a vented tank or add an appropriate venting solution.
Is the listed capacity always exactly 7 or 5 gallons?
Many tanks advertise a nominal capacity that can be slightly lower in practice. Check the true capacity notes in the product description and verify mounting fit before ordering.
Will these tanks fit my specific Honda or Predator generator?
Fit depends on mounting hole spacing and overall dimensions. Always compare the hole-to-hole measurements and the total height/width to your unit’s dimensions.
Do these tanks include all required hardware?
Some listings include a full hardware kit; others may only include the tank with limited accessories. Review the “Package Included” details when available.
Are these tanks suitable for transport or only stationary use?
Large tanks like the 14-gallon model are ideal for transport and refueling at sites; smaller tanks are typically used as replacements or for space-constrained setups.