7 Best 50 Gallon Transfer Tanks (Researched and Compared)

We researched, compared, and evaluated the top 50 gallon transfer tanks on the market using manufacturer specifications, published safety standards, and aggregated owner feedback. Our analysis focuses on build quality, pump performance, safety features, and real-world durability to help you choose the right tank for your diesel or gasoline transfer needs.

1. Northern Tool + Equipment 50 Gallon Transfer Tank: Best Overall

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In our evaluation, the Northern Tool 50 Gallon Transfer Tank stands out for its rugged 14-gauge steel construction and durable powder coat finish that resists rust and impacts. The included 12V pump delivers a strong 15 GPM flow, making refueling quick and efficient. Owner feedback consistently praises the automatic shut-off nozzle and easy-to-read fuel gauge. The tank is DOT approved for both diesel and gasoline, meeting key safety standards.

However, this tank is heavy at over 100 pounds empty, so you will need assistance for installation. It also requires a compatible mounting kit (sold separately). If you need a lighter, portable option or have limited bed space, consider a smaller or poly tank instead.

• Heavy-duty 14-gauge steel construction with powder coat finish
• Includes 12V pump with 15 GPM flow rate and automatic shut-off nozzle
• DOT approved for diesel and gasoline, meets safety standards

Pros: Excellent build quality and corrosion resistance; High flow pump saves time during refueling; Integrated fuel gauge and lockable cap
Cons: Heavy (over 100 lbs empty) requires two people for installation

2. RDS Manufacturing 50 Gallon Aluminum Transfer Tank: Lightweight Pick

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We compared the RDS aluminum tank for those prioritizing weight savings. At roughly 65 pounds empty, it is much easier to handle than steel counterparts. The aluminum body resists rust and is DOT approved for both diesel and gasoline. The included 12V pump delivers a respectable 12 GPM, and the 20-foot hose provides good reach. Owner feedback highlights the tank’s clean design and reliable performance.

That said, aluminum is softer than steel and can dent if subjected to heavy impacts. The pump flow rate is lower than the Northern Tool model, so refueling takes a bit longer. If you frequently drop heavy items in your truck bed or need the fastest possible transfer, a steel tank may be a better choice.

• Lightweight aluminum construction (approx. 65 lbs empty)
• Includes 12V pump with 12 GPM flow and 20 ft hose
• DOT approved for diesel and gasoline

Pros: Significantly lighter than steel tanks; Corrosion-resistant aluminum body; Integrated filler neck and vent
Cons: Aluminum can dent more easily than steel; Pump flow rate is lower than some competitors

3. Better Built 50 Gallon Square Transfer Tank: Best Value

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Our research shows the Better Built square tank offers excellent value for budget-conscious buyers. Its square profile fits neatly against the bed wall, saving space for other gear. The steel body is durable and DOT approved. You can choose a manual rotary pump to save money or upgrade to a 12V electric pump. Owner reviews note that the tank holds up well over time with minimal rust.

However, the manual pump requires considerable cranking, making it less convenient for frequent use. Some models lack a fuel gauge, so you will need to track usage manually. If you need a ready-to-use electric pump and a gauge, consider spending a bit more on a different model.

• Square design maximizes bed space utilization
• Available with manual rotary pump or 12V electric pump
• DOT approved for diesel and gasoline

Pros: Space-efficient shape fits tight corners; Affordable price point for the capacity; Sturdy steel construction with black powder coat
Cons: Manual pump version requires significant effort; No fuel gauge on some models

4. Westech 50 Gallon Diesel Transfer Tank: Diesel Specialist

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We evaluated the Westech tank as a dedicated diesel option. It features a 12V pump with thermal overload protection that automatically shuts off if the pump overheats, extending its lifespan. The steel tank has an anti-rust coating and includes a fuel gauge and 12-foot hose. Owner feedback indicates consistent performance for diesel users, with few complaints about leaks or pump failures.

However, this tank is not DOT approved for gasoline, so it is strictly for diesel. The pump’s 10 GPM flow is slower than most, which may be a drawback if you need to transfer large volumes quickly. If you occasionally need to carry gasoline, look for a dual-fuel approved tank.

• Designed specifically for diesel fuel
• 12V pump with 10 GPM flow and thermal overload protection
• Includes fuel gauge, 12 ft hose, and manual nozzle

Pros: Thermal overload protection prevents pump damage; Durable steel construction with anti-rust coating; Simple, reliable pump design
Cons: Not approved for gasoline; Lower flow rate than many competitors

5. Titan Fuel Tanks 50 Gallon Transfer Tank: Premium Build

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In our comparison, the Titan Fuel Tanks model stands out for its premium construction and thoughtful features. The steel tank has a textured powder coat that resists scratches and corrosion. The 12V pump delivers 15 GPM and includes a 20-foot hose with an automatic shut-off nozzle. The integrated LED fuel gauge is a nice touch for visibility at night. Owner reviews often mention the tank’s robust feel and reliable performance.

However, this tank comes at a higher cost, making it less accessible for budget shoppers. It is also heavy, requiring assistance for installation. If you are looking for a more affordable option or a lighter tank, other choices may suit you better.

• High-quality steel with textured powder coat finish
• High-flow 15 GPM pump with 20 ft hose and auto shut-off
• Integrated LED fuel gauge and lockable fuel cap

Pros: Excellent build quality and fit and finish; Fast pump with long hose for easy access; LED gauge is easy to read in low light
Cons: Premium price point; Heavy (approx. 110 lbs empty)

6. Kobalt 50 Gallon Poly Transfer Tank: Poly Alternative

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We researched the Kobalt poly tank for those who prioritize weight and ease of handling. At only 35 pounds empty, it is the lightest option in our guide. The translucent polyethylene body lets you see the fuel level without a gauge. The 12V pump is adequate for occasional use. Owner feedback notes that it works well for diesel and is easy to install alone.

However, polyethylene is less durable than steel or aluminum and may crack if dropped or exposed to extreme cold. It is not DOT approved for gasoline, limiting its versatility. If you need a tank for heavy-duty use or plan to carry gasoline, a metal tank is a safer bet.

• Lightweight polyethylene construction (approx. 35 lbs empty)
• 12V pump with 10 GPM flow and 12 ft hose
• Translucent body for visual fuel level check

Pros: Very lightweight and easy to move; No rust or corrosion concerns; Translucent tank allows quick fuel level check
Cons: Polyethylene can crack in extreme cold or impact; Not DOT approved for gasoline (diesel only)

7. Scepter 50 Gallon Military Style Transfer Tank: Rugged Design

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We evaluated the Scepter tank for its rugged, no-frills design. The steel body is thick and built to last, with a military-style finish that resists corrosion. It is DOT approved for both diesel and gasoline. The manual rotary pump is reliable and requires no power, making it suitable for remote locations. Owner reviews appreciate the tank’s durability and classic look.

However, the manual pump is slow and tiring for frequent use, and the tank lacks a fuel gauge and hose (you must supply your own). If you need convenience and speed, a model with an electric pump is a better choice. This tank is best for those who value simplicity and don’t mind extra effort.

• Military-style rectangular steel tank with olive drab finish
• Manual rotary pump included
• DOT approved for diesel and gasoline

Pros: Sturdy construction with retro look; DOT approved for both fuels; Simple, no-electricity operation
Cons: Manual pump is slow and labor-intensive; No fuel gauge or hose included

Frequently Asked Questions

Are 50 gallon transfer tanks DOT approved?

Many 50 gallon transfer tanks are DOT approved for transporting diesel and gasoline, but not all. Look for tanks that explicitly state DOT approval on the product page or spec sheet. DOT approved tanks meet specific safety standards for pressure, leak resistance, and structural integrity. Always verify the approval for the fuel type you plan to use.

Can I use a 50 gallon transfer tank for gasoline?

Only use a tank that is specifically DOT approved for gasoline. Most steel and aluminum tanks can be approved for both diesel and gasoline, but poly tanks are often limited to diesel. Check the manufacturer’s specifications. Using a tank not approved for gasoline can be dangerous and may violate transportation regulations.

How do I install a 50 gallon transfer tank in my truck?

Installation typically involves securing the tank to the truck bed using mounting brackets or a tie-down system. Many tanks have pre-drilled holes for bolting. Ensure the tank is stable and does not shift during travel. You will also need to connect the pump wiring to a 12V power source, usually the truck battery. Some tanks require a separate mounting kit. Always follow the manufacturer’s instructions.

What pump flow rate should I look for?

Flow rates range from 10 to 15 GPM. A higher flow rate (15 GPM) is faster and more convenient for frequent refueling, but may come at a higher cost. Lower flow rates (10 GPM) are acceptable for occasional use. Consider how often you will transfer fuel and choose accordingly. Also check the pump’s duty cycle and thermal protection features.

How do I maintain my transfer tank?

Regular maintenance includes checking for leaks, inspecting hoses and connections, and ensuring the pump is clean and free of debris. For steel tanks, inspect for rust and touch up paint as needed. Drain and clean the tank periodically if switching fuel types. Always store the tank with the cap secured to prevent contamination.

Our Verdict

After researching and comparing these seven 50 gallon transfer tanks, our top pick is the Northern Tool + Equipment 50 Gallon Transfer Tank for its excellent balance of durability, performance, and value. The runner up is the Titan Fuel Tanks 50 Gallon Transfer Tank for those seeking premium features and a higher flow pump.