The best diesel tank for a truck bed depends on how much fuel you need, whether you want built-in tool storage, and whether a pump is included. The VEVOR 116-gallon tank is best for high-volume diesel refueling; the Dee Zee 92-gallon aluminum combo is better for fuel storage plus tools; and the Vigorighter 51-gallon combo suits buyers who want a tank with a pump kit. Check truck payload, bed dimensions, fuel-use rules, and installation requirements before choosing.
| Product | Best for | Capacity | Standout feature |
|---|---|---|---|
| VEVOR Portable Diesel Tank | High-volume diesel refueling | 116 gallons | 12V pump and dual filters |
| Dee Zee Aluminum Combo | Fuel and tool storage | 92 gallons | Aluminum tank with toolbox |
| Vigorighter Combo | Included pump and hose | 51 gallons | 12 GPM pump kit |
| Dee Zee Steel Combo | Steel tank construction | 92 gallons | 14-gauge steel |
| RDS Rectangular Tank | Simple auxiliary fuel storage | 69 gallons | Rectangular dimensions |
VEVOR 116-Gallon Portable Diesel Tank
This is the best choice for buyers who need to carry a large diesel reserve and refuel equipment from the truck. Its listed capacity is 116 gallons, and the tank includes a 12V pump with a stated 10.6 GPM flow rate, a mechanical fuel gauge, and a duplex filter design.
The polyethylene tank is described as 6 mm thick, with thicker sections reaching 12 mm, and has a lockable upper lid. Choose it if diesel-specific use, included pumping equipment, and filtration are priorities. Its large capacity can take up substantial payload and bed space, so verify both limits before purchase.
Dee Zee 92-Gallon Aluminum Combo Tank
This Dee Zee combo is best for buyers who want fuel capacity and separate tool storage in one bed-mounted unit. The listing describes a 92-gallon transfer tank made from .125-inch Brite-Tread aluminum, with a protective black powder-coat finish and a toolbox bolted onto the tank.
It is a better fit than a standalone tank when keeping tools organized is part of the job. The product information does not list a pump, hose, or nozzle, so confirm what equipment is needed for your refueling setup. Its 92-gallon capacity also calls for careful payload and fit checks.
Vigorighter 51-Gallon Pump And Toolbox Combo
This combo is best for buyers who want a moderate-capacity tank with a pump kit and toolbox. The listed package includes a 51-gallon aluminum tank, a 12V DC pump rated at 12 GPM, a 13-foot hose, and an auto-shutoff nozzle. The product description names gasoline, diesel, and kerosene as intended fuels.
Its stated overall dimensions are 58.1 by 19 by 20 inches, while the toolbox measures 31 by 19 by 8.8 inches. Choose this if the included transfer components and storage are useful. Check the stated dimensions against your truck bed, and verify that the pump setup meets your intended use.
Dee Zee 92-Gallon Steel Combo Tank
This model is best for buyers who specifically want a steel transfer tank combined with tool storage. Its listed tank construction is 14-gauge steel, and the NRT powder coat is described as designed to increase corrosion protection. The toolbox is bolted onto the tank for combined storage.
Choose this over the aluminum Dee Zee combo if steel construction is your priority. The listing does not specify a pump or transfer accessories, so plan for those separately if needed. The product information also does not provide dimensions, making a fit check with the seller or product documentation especially important.
RDS 69-Gallon Rectangular Auxiliary Tank
This RDS tank is best for buyers seeking a rectangular auxiliary tank without a listed built-in toolbox or pump kit. The listing gives a 69-gallon capacity and package dimensions of 57 by 18 by 16 inches, which helps with preliminary bed-fit comparisons.
The product description says gasoline auxiliary fueling is allowed when fuel is siphoned from the top using an electric fuel pump. That detail is not a general approval for every fuel or installation method; confirm the manufacturer’s instructions for diesel use and your intended setup. Choose this model when its dimensions and simpler tank format match your needs.
Buying Guide: How To Choose A Truck-Bed Diesel Tank
How much capacity do you need?
Match capacity to your typical workday or travel needs rather than choosing the largest tank by default. A 116-gallon tank can reduce refill stops, but it carries more fuel weight and takes more room than a 51- or 69-gallon option. Include the tank, fuel, pump, and any cargo when checking your truck’s payload limits.
Do you need a pump or toolbox?
A pump kit can simplify dispensing fuel in the field. The VEVOR listing specifies a 12V pump, while the Vigorighter listing includes a 12 GPM pump, hose, and auto-shutoff nozzle. Dee Zee’s combo models add a toolbox, but their supplied features do not list pumps. Confirm accessory details before ordering.
Which construction and dimensions fit your use?
Compare material and measurements with the truck bed and intended operating conditions. The listed options include steel, aluminum, and polyethylene construction. Check the tank’s footprint, mounting approach, and clearance needs in the manufacturer’s documentation. Product dimensions supplied here are not available for every model.
What rules and installation details should you check?
Before carrying or transferring fuel, review the tank maker’s instructions and applicable federal, state, and local requirements. Confirm the tank is intended for the fuel and use method you plan, and determine whether additional transfer equipment is required. Secure installation and safe handling matter for both worksite and road use.
Frequently Asked Questions
Can I use any auxiliary tank for diesel?
No. Confirm the specific tank is suitable for diesel and follow its instructions. Do not assume a product’s gasoline guidance also applies to diesel.
Does every transfer tank include a pump?
No. The VEVOR and Vigorighter listings describe included pumps. The Dee Zee and RDS features provided here do not list a pump.
How do I know whether a tank fits my truck bed?
Compare the tank’s listed dimensions with the usable bed space and check clearance and mounting requirements. Contact the seller or manufacturer when dimensions are not provided.
Should I choose the biggest tank available?
Only if the capacity suits your needs and your truck can carry the tank, fuel, and other cargo within its limits.