Choosing the best external fuel tank for your diesel generator ensures extended running time and convenience during power outages or remote operations. This guide covers top-rated diesel generator fuel tanks that vary in capacity, portability, and durability. Below is a summary table of selected products tailored for generators ranging from small portable models to larger industrial uses.
| Product Name | Brand | Capacity | Material | Key Feature |
|---|---|---|---|---|
| POWER PRODUCTS Universal 4 Gallon Diesel Generator Fuel Tank | POWER PRODUCTS | 4 Gallons | ABS with Chrome Finish | Fits Most Open Frame 5-7KW Generators |
| VEVOR Portable Diesel Tank with 12V Pump | VEVOR | 58 Gallons | High-Quality Polyethylene | 10.6 GPM Flow Rate, Lockable Lid |
| RDS MFG INC 45 Gallon Rectangular Auxiliary Fuel Tank | RDS MFG INC | 45 Gallons | Steel (Welded) | Durable Fully Welded Seams |
| RDS MFG INC 69 Gallon Rectangular Auxiliary Fuel Tank | RDS MFG INC | 69 Gallons | Steel (Welded) | Large Capacity with Fueling Flexibility |
| Scepter 12 Gallon Portable Marine Gas Can | Scepter | 12 Gallons | Durable Plastic | Built-In Fuel Gauge & Vented Cap |
POWER PRODUCTS 4 Gallon Diesel Generator Fuel Tank
This universal 4 gallon fuel tank by POWER PRODUCTS is designed to fit most open frame 5-7KW diesel generators. Made from durable ABS material with a chrome finish, it offers a sleek look and reliable construction. The dimensions are 18 inches long by 13 inches wide, providing a compact and efficient fuel storage solution. This tank is perfect for users needing a straightforward external fuel source without sacrificing portability or compatibility.
VEVOR 58 Gallon Portable Diesel Tank with Electric Pump
The VEVOR portable diesel tank stands out for its large 58-gallon capacity and robust polyethylene construction, making it resistant to weather changes and UV radiation. It includes a 12V electric transfer pump delivering a 10.6 GPM flow rate for efficient refueling. Additionally, a duplex filter system ensures that diesel remains clean by separating impurities. The lockable lid provides theft protection during transport.
RDS MFG INC 45 Gallon Auxiliary Fuel Tank
This 45 gallon rectangular auxiliary fuel tank from RDS MFG INC features fully welded steel seams for enhanced durability and longevity. It supports gasoline auxiliary fueling when siphoned using an electric fuel pump, expanding its versatility. The tank is suitable for those seeking a rugged external diesel or gasoline tank that can handle moderate capacity needs.
RDS MFG INC 69 Gallon Large Auxiliary Fuel Tank
The 69 gallon fuel tank by RDS MFG INC is the largest in this selection, providing extended fuel supply for industrial or farm generators. Its rectangular design and durable steel construction allow for easy installation and maintenance. The tank permits gasoline auxiliary fueling with an electric pump and offers broad compatibility with various diesel generators requiring large external fuel sources.
Scepter 12 Gallon Portable Marine Gas Can with Fuel Gauge
While primarily designed for marine use, this Scepter 12 gallon fuel can is EPA and CARB compliant and suits small diesel generators where portability matters. It features a built-in fuel gauge for quick fuel level checks and a 2-way vented cap that improves airflow during refueling and prevents vapor pressure build-up. Its rugged construction and ergonomic handles make it a versatile option for varied fuel storage needs.
Buying Guide For Diesel Generator External Fuel Tanks
Selecting an external fuel tank for your diesel generator depends on several key factors to ensure compatibility, safety, and efficiency:
Capacity and Usage
Assess your fuel consumption rate and expected generator running time. Small portable tanks (4-15 gallons) suit home or camping use, while larger tanks (45 gallons and above) are ideal for industrial or extended backup scenarios.
Material and Durability
Choose tanks made from robust materials like steel for durability or polyethylene for lightweight weather resistance. Steel tanks typically offer better impact resistance, whereas polyethylene tanks can resist rust and corrosion.
Fuel Compatibility
Confirm the tank supports diesel fuel specifically, and if you plan to use gasoline, ensure the tank allows dual compatibility or has suitable filtration systems.
Portability and Design
If frequent transport is required, opt for tanks with ergonomic handles, wheels, or reduced weight. Consider the tank’s size relative to your available storage and generator mounting options.
Refueling Features
External fuel tanks with built-in transfer pumps, fuel gauges, and vented caps improve refueling ease and safety. Lockable lids enhance theft protection during outdoor storage or transportation.
Compliance and Safety Standards
Ensure the tank complies with EPA, CARB, or other regional fuel storage regulations. Proper labelling and certified pressure relief mechanisms help maintain safe use.
Installation and Compatibility
Verify tank dimensions and mounting hole positions to ensure the unit fits your specific generator model or setup. Many universal tanks work with common generator sizes, but checking specs upstream prevents installation issues.
Considering these factors thoroughly helps you select a diesel generator external fuel tank that meets operational demands while ensuring safety and convenience.