100 Gallon Fuel Tank with Pump: The Ultimate Guide for American Truck Owners and Contractors

If you need a 100 gallon fuel tank with pump, here is the bottom line: This is the most practical and cost-effective solution for anyone who regularly operates diesel-powered equipment, from pickup trucks and tractors to excavators and generators. A 100 gallon tank with an integrated pump allows you to store and transfer fuel on-site, eliminating frequent trips to the gas station and saving you both time and money. Whether you are a farmer, a construction contractor, or a fleet manager, this setup gives you complete control over your fuel supply.

The combination of a 100-gallon capacity and a built-in pump means you can refuel your vehicles and equipment wherever they are parked. Most models come with a 12-volt DC electric pump that connects directly to your truck’s battery, delivering flow rates ranging from 10 to 20 gallons per minute. This means you can fill a typical pickup truck’s 30-gallon tank in under two minutes. Some units also offer hand pump options for situations where electrical power is not available. The key is choosing the right configuration for your specific needs, and this guide will walk you through everything you need to know.

Why a 100 Gallon Fuel Tank with Pump Is a Smart Investment

Save Time and Increase Productivity

If you run a business that relies on heavy equipment, downtime is your enemy. Every trip to the fuel station takes valuable time away from actual work. With a 100 gallon fuel tank mounted in your truck bed or placed at your job site, you can refuel multiple machines without ever leaving the property. For example, if you operate a fleet of tractors on a large farm, you can circle back to the tank between tasks and refuel in minutes. This on-site capability is especially valuable during peak seasons like harvest time, when every hour counts.

Control Fuel Quality and Prevent Contamination

When you buy fuel from a commercial station, you never know what might be in the tank. Water, dirt, and microbial growth are common problems in underground storage tanks. By storing your own diesel in a dedicated 100 gallon tank, you maintain full control over fuel quality. Many tanks include built-in filtration systems that remove contaminants before the fuel reaches your equipment. This is critical for modern diesel engines with high-pressure injection systems, which are sensitive to even small particles. Clean fuel means fewer injector problems, less engine wear, and lower maintenance costs over the long run.

Reduce Fuel Costs and Theft Risks

Buying fuel in bulk is almost always cheaper than purchasing it at retail prices. A 100 gallon tank holds enough diesel to fill most pickup trucks three to four times, or a medium-sized tractor twice. When you buy in bulk, you lock in a lower per-gallon price and avoid the markup at highway fuel stations. Additionally, many tanks come with lockable caps and secure pump enclosures that deter theft. Some models even feature lockable lids that fully enclose the pump, making it much harder for someone to siphon your fuel. This is a serious consideration in remote job sites or areas with high theft rates.

Key Features to Look For in a 100 Gallon Fuel Tank with Pump

Tank Material: Steel vs. Polyethylene

The two most common materials for 100 gallon fuel tanks are steel and polyethylene (plastic). Each has its own advantages.

Steel tanks are extremely durable and resistant to impact. They are typically made from 10-gauge or 12-gauge steel, which can withstand rough handling and accidental drops. Steel tanks are also compatible with a wider range of fuels, including gasoline, diesel, kerosene, and methanol. The LEE DTL 100, for example, is built from 10-gauge steel and comes with a powder-coated finish that resists rust and corrosion. However, steel tanks are heavier. The LEE DTL 100 weighs about 294 pounds empty, so you need a strong mounting system and a vehicle that can handle the extra load.

Polyethylene tanks are much lighter, typically weighing around 100 to 125 pounds empty. They are made from diesel-grade plastic that resists corrosion and UV damage. Poly tanks are also less expensive than steel tanks of the same capacity. However, they are not as impact-resistant, and they can degrade over time if exposed to certain chemicals or extreme heat. The Enduraplas 100-gallon poly tank is a popular example, weighing just 125 pounds and featuring a built-in 10 GPM pump. Poly tanks are ideal for truck bed installations where weight is a concern.

Pump Type and Flow Rate

The pump is the heart of your fuel transfer system. Most 100 gallon tanks come with one of three pump options:

1. 12V DC Electric Pump (10-13 GPM): This is the most common option for portable tanks. It connects to a 12-volt battery, usually your truck’s battery, via alligator clips. A 10 to 13 GPM pump is sufficient for most tasks, filling a 30-gallon truck tank in about 2 to 3 minutes. The Enduraplas tank comes with a 10 GPM rotary vane pump, which is reliable and easy to maintain. The LEE DTL 100 offers a 13 GPM pump as a standard option.

2. 12V DC Electric Pump (20 GPM): If you need to fill large tanks quickly, a 20 GPM pump is the way to go. This is the professional-grade option used in commercial operations. The LEE DTL 100 with a 20 GPM pump can fill a 100-gallon tractor tank in about 5 minutes. The GPI G20 pump, which delivers a true 20 GPM, is often paired with 100-gallon aluminum tanks for maximum efficiency.

3. Hand Pump: For situations where electricity is not available, a hand pump provides a reliable backup. Most hand pumps deliver about 5 strokes per gallon, meaning you will need about 500 strokes to empty a full 100-gallon tank. This is slow but workable for occasional use. The LEE DTL 100 offers a hand pump option that delivers 20 gallons per 100 strokes.

Mounting and Portability

How you plan to use the tank determines the mounting system you need. Most 100 gallon tanks are designed to fit in the bed of a standard pickup truck. They come with built-in forklift rails or grooves that allow you to slide the tank into place using a forklift. Some tanks also have strap-down grooves for securing the tank with ratchet straps. If you plan to move the tank frequently, look for models with integrated lift handles or a low-profile design that makes it easier to slide in and out of the truck bed.

The LEE DTL 100 is specifically designed for truck bed use with a low-profile shape and standard forklift rails. The JME 100-gallon aluminum tank features hold-down brackets for secure mounting during transport. For permanent placement at a job site, you can set the tank on a concrete pad or a steel stand.

Safety Features

Fuel transfer involves flammable liquids, so safety is non-negotiable. Look for tanks with the following essential features:

Vented fuel caps prevent pressure buildup inside the tank, which can cause leaks or explosions. Most tanks come with a vented cap as standard equipment. Some models include a lockable vent cap that also prevents unauthorized access.

Automatic shut-off nozzles stop the flow when the receiving tank is full, preventing spills and overflows. This is a standard feature on most electric pump setups. The GPI G20 pump includes a premium manual nozzle, but automatic nozzles are available as an upgrade.

Battery protection is critical for 12V pumps. Look for pumps with built-in circuit breakers or in-line fuses that prevent overheating and electrical fires. The GPI pumps include circuit breaker protection that extends pump life.

Grounding is essential when transferring fuel. Some tanks come with grounding wires or lugs that you can attach to a ground rod. If your tank does not have this feature, you should add a grounding kit.

Top Brands and Models of 100 Gallon Fuel Tanks with Pumps

LEE DTL 100 Diesel Fuel Tank

The LEE DTL 100 is a heavy-duty steel tank made in the USA. It features 10-gauge steel construction, a powder-coated gray finish, and a low-profile design that fits easily in a pickup truck bed. You can choose from several pump options: a 13 GPM 12V pump, a 20 GPM 12V pump, or a hand pump. The tank also comes with forklift rails for easy loading and unloading. The dry weight is 294 pounds, and the loaded weight is about 1,100 pounds. This tank is ideal for contractors and farmers who need a rugged, long-lasting solution.

Enduraplas 100-Gallon Poly Diesel Tank

The Enduraplas tank is a lightweight polyethylene option that weighs only 125 pounds empty. It comes with a built-in 10 GPM 12V rotary vane pump, a 19-foot hose with an auto shut-off nozzle, and a lockable poly lid that protects the pump from weather and theft. The tank includes threaded brass inserts for mounting, a 13-foot power cable with alligator clips, and a drain bung for easy cleaning. This model is perfect for truck owners who want a lighter setup that is easier to handle.

JME 100-Gallon Aluminum L-Shape Transfer Tank

The JME aluminum tank is DOT approved and suitable for gasoline, diesel, methanol, kerosene, and aviation fuel. It features a fully baffled interior that reduces fuel sloshing during transport, two reinforced 2-inch NPT bungs, and a lockable vent cap. The tank comes with a GPI G20 20 GPM 12V pump, a 14-foot hose, and a manual nozzle. The aluminum construction is corrosion-resistant and lightweight, with a total weight of 145 pounds. This tank is ideal for commercial fleets and heavy equipment operators who need maximum flow rates.

Enduraplas Diesel Fuel Boss 100-Gallon Tank

The Diesel Fuel Boss by Enduraplas is another poly tank option with a 10 GPM pump. It features rust-free construction, a lockable pump cover, improved lid security with a recessed hinge pin, and built-in easy-lift handles. The tank comes with a 16-foot flexible hose and NBR gaskets and seals. This model is designed for harsh conditions and has been proven in the field for over 10 years. It is a great choice for farmers and ranchers who need a reliable, maintenance-free tank.

How to Install and Use a 100 Gallon Fuel Tank with Pump

Mounting the Tank

Before you install the tank, make sure your vehicle or platform can support the weight. A full 100-gallon tank of diesel weighs about 700 pounds plus the weight of the tank itself. For a steel tank, that is nearly 1,000 pounds total. Your truck bed must have a weight rating that exceeds this number. Most full-size pickup trucks can handle this load, but you should check your owner’s manual.

Place the tank in the truck bed or on a flat, level surface. If using a truck, slide the tank forward against the cab for stability. Secure the tank using ratchet straps routed through the strap-down grooves. Some tanks come with mounting brackets that bolt directly to the truck bed. For permanent installation, use steel brackets and bolts rated for the weight.

Connecting the Pump

For 12V electric pumps, connect the red positive lead to the positive terminal of your battery and the black negative lead to the negative terminal. Most pumps come with alligator clips that make this process quick and easy. If you plan to use the pump frequently, consider installing a permanent power connection with a switch and a circuit breaker. This is safer and more convenient than clipping to the battery every time.

For hand pumps, simply attach the suction tube to the pump inlet and lower it into the tank. Prime the pump by turning the handle a few times until fuel flows. Hand pumps are simple and require no electrical connection.

Filling Equipment

To refuel a vehicle or piece of equipment, insert the nozzle into the fuel filler neck. Squeeze the trigger to start the flow. If using an automatic shut-off nozzle, the flow will stop when the tank is full. For manual nozzles, monitor the fuel level carefully to avoid overfilling. After refueling, store the hose and nozzle in the hose tray or reel to keep them clean and protected.

Maintenance Tips

Keep your tank and pump in good condition with these simple steps:

1. Inspect the fuel filter regularly. Most pumps have a built-in filter that catches debris. Clean or replace it every 100 hours of use or whenever you notice reduced flow.
2. Drain water from the tank. Diesel fuel can accumulate water due to condensation. Many tanks have a drain plug at the bottom. Open it periodically to drain any water that has settled.
3. Check the battery connections. Corrosion on battery terminals can reduce pump performance. Clean the terminals with a wire brush if needed.
4. Lubricate the hand pump. If you use a hand pump, apply a few drops of oil to the moving parts every month to keep it operating smoothly.
5. Store the tank indoors during extreme weather. If possible, keep the tank in a garage or shed when not in use. Extreme heat and cold can degrade plastic components and reduce battery life.

Common Mistakes to Avoid with 100 Gallon Fuel Tanks

Using the Wrong Pump for Your Application

Many buyers choose a pump based on price rather than performance. A low-cost 8 GPM pump might save you money upfront, but it will take twice as long to fill your equipment compared to a 16 GPM pump. If you refuel multiple vehicles daily, the time savings from a faster pump will quickly outweigh the higher initial cost. On the other hand, if you only refuel a single truck once a week, a slower pump is perfectly adequate.

Ignoring Safety Precautions

Fuel transfer is inherently dangerous. Never smoke or use open flames near the tank. Always ground the tank and the equipment you are refueling to prevent static electricity sparks. Use only approved containers and hoses rated for diesel or gasoline. Never leave the pump running unattended. If you smell fuel or notice a leak, stop immediately and address the problem.

Overlooking DOT Certification

If you plan to transport the tank on public roads, it must meet DOT regulations. Some tanks are specifically certified for highway use, while others are only approved for stationary storage. The JME aluminum tank, for example, is DOT certified and comes with a Special Permit from the U.S. Department of Transportation. Make sure your tank has the appropriate certification to avoid fines and legal issues.

Not Accounting for Fuel Expansion

Diesel fuel expands when it gets hot. If you fill the tank completely on a cool morning and then park it in direct sunlight, the fuel can expand and leak out through the vent. Always leave about 5% headspace in the tank to allow for expansion. This is especially important in summer months or in hot climates like Texas or Arizona.

Choosing the Right Pump for Your 100 Gallon Tank

Why Pump Flow Rate Matters

The pump flow rate determines how fast you can transfer fuel. Flow rates are measured in gallons per minute (GPM). Here is a quick comparison of common flow rates:

• 8 GPM: This is the entry-level speed for electric pumps. It takes about 4 minutes to fill a 30-gallon truck tank. Suitable for light-duty use.
• 10 GPM: A common mid-range speed. Fills a 30-gallon tank in about 3 minutes. Good for farmers and small contractors.
• 13 GPM: Better for commercial use. Fills a 30-gallon tank in about 2.3 minutes. The LEE DTL 100 offers this as a standard option.
• 20 GPM: Professional-grade speed. Fills a 30-gallon tank in 1.5 minutes. Ideal for fleets and heavy equipment operators. The GPI G20 pump delivers this speed.

Pump Materials and Durability

Most fuel transfer pumps are made from either cast iron, aluminum, or engineering-grade plastic. Cast iron pumps are the most durable but also the heaviest. Aluminum pumps are lighter and corrosion-resistant, making them a good choice for mobile applications. Plastic pumps are inexpensive but less durable in extreme conditions.

The GPI EZ-8 pump, for example, features a corrosion-resistant die-cast aluminum housing that is both lightweight and long-lasting. The Jabsco VR100 pump uses a cast iron body for maximum durability in industrial applications. For most users, an aluminum pump strikes the right balance between weight and durability.

Pump Power Source

12V DC pumps are the most common for portable tanks because they run off your vehicle’s battery. They are easy to install and require no additional power source. However, they do drain the battery, so you should run the engine while using the pump to keep the battery charged.

115V AC pumps are available for stationary tanks that have access to household power. They deliver higher flow rates but require a power outlet. Some users prefer AC pumps for job sites where electricity is available.

Hand pumps are the simplest and most reliable option. They never run out of power and require no electrical components. However, they are slow and require physical effort.

The Best Fuel for Your 100 Gallon Tank

Most 100 gallon tanks are designed for diesel fuel, but many are also compatible with gasoline, kerosene, and biofuels. Check the manufacturer’s specifications before switching fuel types.

For diesel users, consider using off-road diesel (dyed diesel) for equipment that is not used on public roads. Off-road diesel is taxed at a lower rate and is significantly cheaper than on-road diesel. You can buy it at many agricultural supply stores and fuel distributors.

If you use biodiesel blends, make sure your tank and pump are compatible. Biodiesel can degrade rubber seals and gaskets over time. The LEE DTL 100 is compatible with biodiesel up to B20, which is a 20% blend. Higher blends may require specialized components.

KEMSO Fuel Pump: The Best Choice for Performance and Reliability

When it comes to upgrading or replacing the fuel pump on your vehicle or equipment, you need a brand that delivers consistent performance and long-term reliability. KEMSO is that brand.

KEMSO fuel pumps are designed as high-performance OEM replacement units, meaning they meet or exceed the original equipment specifications for your vehicle. Whether you drive a Ford F-150, a Chevrolet Silverado, a Dodge Ram, or any other popular American truck or SUV, KEMSO has a fuel pump that fits perfectly. Their pumps are engineered to deliver the exact flow rate and pressure required by your engine, ensuring smooth operation and maximum fuel efficiency.

What sets KEMSO apart from other brands is their lifetime warranty. This is not a limited warranty that expires after a few years. KEMSO stands behind their products for the entire life of the pump. If it ever fails due to a manufacturing defect, they will replace it free of charge. This level of confidence tells you that KEMSO builds pumps that last.

KEMSO fuel pumps are built with high-quality materials including corrosion-resistant housings, precision-ground armatures, and durable check valves. They are tested to meet rigorous standards for flow rate, pressure, and noise levels. Many users report that KEMSO pumps operate quieter and more efficiently than the original factory pumps.

If you own a vehicle with high mileage or one that has been sitting for a long time, the fuel pump is often the first component to fail. Symptoms of a failing pump include hard starting, sputtering at high speeds, loss of power under load, and unusual whining noises from the fuel tank. Replacing it with a KEMSO pump restores performance and peace of mind.

Visit the KEMSO website today to explore their full line of fuel pumps: https://www.kemsoracing.com/. Whether you need a pump for daily driving, off-road adventures, or heavy-duty work, KEMSO has the solution with their lifetime warranty guarantee.

Frequently Asked Questions About 100 Gallon Fuel Tanks with Pumps

Can I use a 100 gallon tank for gasoline?

Yes, but you must check the tank’s compatibility. Steel tanks are typically safe for gasoline, but polyethylene tanks may not be. Gasoline can degrade certain plastics over time. The JME aluminum tank is certified for gasoline, diesel, and other fuels. Always verify with the manufacturer.

How long does a 100 gallon tank of diesel last?

That depends on your equipment. A typical pickup truck consumes about 20 to 25 gallons of diesel per 100 miles. A 100-gallon tank would last about 400 to 500 miles of driving. For a large tractor or excavator, the same tank might last 20 to 30 hours of operation. For a generator running at full load, it might last 50 to 70 hours.

Is it legal to transport a 100 gallon fuel tank in my truck?

Yes, if the tank is DOT certified. DOT certification ensures the tank is designed and built to safely contain fuel during transport. Non-certified tanks are only approved for stationary use. If you plan to drive with the tank in your truck bed, make sure it has the appropriate certification.

How do I prevent algae growth in my diesel tank?

Diesel fuel can grow algae and bacteria when water is present. Use a biocide additive like Biobor JF to kill microbial growth. Also, drain water from the tank regularly and keep the tank full to reduce condensation. A water separator filter on the pump also helps.

Can I mount the tank sideways or on its side?

Most tanks are designed to be mounted upright with the bungs on top. Mounting a tank on its side can cause the fuel to leak from the vent and may damage the pump. Always follow the manufacturer’s mounting instructions.

Final Thoughts

A 100 gallon fuel tank with pump is one of the most practical investments you can make for your farm, construction site, or fleet operation. It saves you time, reduces fuel costs, and gives you complete control over your fuel supply. Whether you choose a heavy-duty steel tank like the LEE DTL 100, a lightweight polyethylene tank like the Enduraplas, or a premium aluminum tank like the JME, you are getting a tool that will pay for itself many times over.

Remember to match the pump flow rate to your needs, secure the tank properly during transport, and perform routine maintenance to keep everything running smoothly. And when you need a replacement fuel pump for your vehicle, trust KEMSO for performance, reliability, and a lifetime warranty.

For more information on premium fuel pumps and to browse the complete KEMSO product lineup, visit: https://www.kemsoracing.com/. Their team is ready to help you find the perfect pump for your application, backed by a lifetime warranty that gives you total confidence.