Best External Fuel Tanks for Generators to Extend Runtime
Choosing the right external fuel tank for your generator can greatly enhance your generator’s runtime and convenience, especially during power outages or extended outdoor use. This guide reviews some of the best fuel tanks available that are compatible with popular generator brands like Honda, Generac, and Predator. Below is a quick reference table summarizing these top options based on capacity and compatibility to help you find the perfect match for your generator needs.
| Product | Fuel Capacity | Compatible Generators | Key Feature |
|---|---|---|---|
| JMCHstore OEM Metal Generator Gas Fuel Tank | 7.2 Gallons | Generac GP5500 to XT8500EFI Models | OEM fit with high capacity and durability |
| maXpeedingrods 12V DC Gasoline Electric Fuel Pump | Requires separate fuel tank | Universal for generators needing extended running time | Automatic fuel pumping for continuous operation |
| JJing Universal 7 Gallon Generator Gas Fuel Tank | 7 Gallons | Honda EC6500, EM6500, EM5500, EB6500X and similar | Fuel gauge included; check size carefully before ordering |
| Automost 7 Gallon Universal Generator Gas Tank | 7 Gallons | Honda EB5000, EM6500, Predator 6500 to 9000 models | Complete package including fuel petcock and filters |
| Sportpules 5 Gallon Gas Tank for Generator | 5 Gallons | General use for lawn equipment and generators | Durable HD polyethylene with portable storage design |
JMCHstore OEM Metal Generator Gas Fuel Tank
The JMCHstore OEM Metal Generator Gas Fuel Tank offers 7.2 gallons of fuel capacity and is designed specifically for Generac 5-8 kW models including GP5500, GP6500, GP7500, and RS series. It provides an OEM-level fit ensuring compatibility and reliability. Its sturdy metal construction makes it suitable for portable generator applications requiring extended fuel supply. This fuel tank supports continuous fuel delivery for prolonged generator operation, helping avoid frequent refills during long power outages or job site use.
maXpeedingrods 12V DC Gasoline Electric Fuel Pump
This device is an electronic fuel pump designed to automatically transfer gasoline from an external fuel tank into a generator’s main tank. Featuring an integrated fuel level sensor, it precisely controls fuel flow, starting and stopping as needed to maintain the fuel level without leaks. Users benefit from continuous generator runtime without shutdown for refueling. The pump’s quick-connect fuel port allows easy attachment to compatible external tanks (sold separately), supporting long operational periods seamlessly.
JJing Universal 7 Gallon Generator Gas Fuel Tank
The JJing Universal 7 Gallon Fuel Tank provides a practical extra fuel source compatible with various Honda EC and EM series generators alongside similar models. This tank includes built-in fuel gauge and rubber grommets for easier monitoring and installation. Note the absence of a vent valve which may be significant for some users. Its mounting dimensions and size should be carefully verified to ensure a proper fit, as customers may confuse exact sizing. The actual capacity tends to be slightly below 7 gallons, a common variation in the market.
Automost 7 Gallon Universal Generator Gas Tank
The Automost 7 Gallon Gas Tank is built with high-quality iron coated with protective paint for durability and longevity. Compatible with Honda EB and EM series generators as well as Predator models, this tank comes with a full accessory package including fuel petcock, air filter, fuel line, gasket, grommets, and mounting bolts. This comprehensive kit ensures an easy and secure setup while extending the runtime of your generator by supplying ample external fuel.
Sportpules 5 Gallon Gas Tank for Generator
The Sportpules 5 Gallon Gas Tank focuses on portability and durability with a construction of high-density polyethylene that resists impacts and rough handling. While compact compared to other tanks, its sturdy design makes it suitable not only for generators but also for other gasoline-powered outdoor equipment. Accessories needed for installation are conveniently stored under the tank cap. Its smaller capacity and lightweight design make it ideal for casual or light-duty usage.
Buying Guide for External Fuel Tanks for Generators
When selecting an external fuel tank for your generator, it is essential to consider several factors to ensure optimal performance and compatibility:
1. Compatibility
Not all fuel tanks fit all generator models. Confirm specific compatibility with your generator brand and model, checking mounting hole spacing, fuel line connections, and tank dimensions. OEM tanks or those listed for your generator model reduce installation issues.
2. Fuel Capacity
Choose the fuel capacity that matches your runtime needs. Larger tanks like 7 gallons offer extended operational time but require more space and weight tolerance. Smaller tanks add portability but need more frequent refilling.
3. Construction Material
Metal tanks, such as those made from iron or steel, offer superior durability and resistance to damage but add weight. Plastic tanks made from high-density polyethylene provide lightweight and impact resistance but may be less robust.
4. Additional Features
- Fuel Gauge: Allows easy monitoring of fuel level without opening the tank.
- Vent Valve: Facilitates proper airflow to prevent vacuum lock in the tank; lack of vent valve could cause fueling issues.
- Accessory Kits: Some tanks come with fuel petcocks, fuel lines, gaskets, and mounting hardware simplifying installation.
5. Installation and Integration
Consider how the tank connects to your generator. Some require additional fuel pumps for automatic refueling during operation, while others support manual transfer. Kits that include mounting hardware and fittings streamline the setup.
6. Purpose and Usage
Evaluate whether you need a permanent extended tank for standby use or a portable tank for fieldwork. This consideration affects size, material choice, and design preference.
7. Fuel Type and Safety
Ensure the tank is suitable for gasoline or diesel based on your generator’s fuel requirements and adheres to safety standards to prevent leaks and spills.