When you need serious fuel capacity for long hauls, job sites, or off-grid adventures, a 50 gallon fuel tank can save you time and hassle. But not all tanks are created equal. We researched manufacturer specifications, safety standards, and aggregated owner feedback to bring you a clear comparison of the best options on Amazon. Our evaluation focuses on real-world durability, ease of installation, and value. Whether you need a transfer tank for a pickup bed or a stationary tank for a workshop, this guide will help you choose wisely.
| Photo | Product | Score | Buy |
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RDS Manufacturing 50 Gallon Rectangular Fuel Tank Best Overall Aluminum, 48"L x 24"W x 16"H, 12V pump kit compatible |
9.0 | 🛒 Check Price |
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Northern Tool + Equipment 50 Gallon Diesel Fuel Tank Best Value Steel, 48"L x 24"W x 18"H, rotary pump included |
8.7 | 🛒 Check Price |
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Transfer Flow 50 Gallon Replacement Fuel Tank Best Fitment Aluminum, replaces factory tank on select trucks, 50 gal |
8.4 | 🛒 Check Price |
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Dee Zee 50 Gallon Rectangular Fuel Tank Runner Up Aluminum, 48"L x 24"W x 16"H, 1/8" wall thickness |
8.1 | 🛒 Check Price |
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Midwest Tank 50 Gallon Diesel Transfer Tank Heavy Duty Pick Steel, 48"L x 24"W x 18"H, 12V pump not included |
7.8 | 🛒 Check Price |
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Better Built 50 Gallon Fuel Transfer Tank Budget Pick Steel, 48"L x 24"W x 18"H, manual pump included |
7.3 | 🛒 Check Price |
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Fuelbox 50 Gallon Portable Fuel Tank Most Portable Polyethylene, 48"L x 24"W x 16"H, 12V pump included |
7.1 | 🛒 Check Price |
1. RDS Manufacturing 50 Gallon Rectangular Fuel Tank: Best Overall
The RDS Manufacturing 50 gallon rectangular fuel tank stands out for its premium aluminum construction and thoughtful design. We researched owner feedback and found consistent praise for its corrosion resistance and leak-free performance. The tank meets DOT and EPA requirements for on-road use, and its low profile allows for easy bed access. However, the aluminum material comes at a premium, making it less budget-friendly for occasional users.
This tank is ideal for professionals who need a reliable, long-lasting solution. Skip it if you’re on a tight budget or need a tank for only occasional use; a steel tank may offer better value in that case.
- Heavy-duty 5052 aluminum construction resists rust and corrosion
- Low-profile rectangular design fits most pickup beds
- Includes fuel withdrawal sump and lockable cap
Pros: Excellent build quality and weld integrity; Compatible with aftermarket pump kits
Cons: Higher price point than some steel options
2. Northern Tool + Equipment 50 Gallon Diesel Fuel Tank: Best Value
The Northern Tool + Equipment 50 gallon tank delivers solid performance at a competitive price. We compared its specs against others and found the included rotary pump a significant convenience. Owner feedback highlights the sturdy steel build and the accurate sight gauge. However, the steel is heavier than aluminum and may rust if scratched, so care is needed.
This is a smart pick for farmers and contractors who want a complete, ready-to-use system without overspending. Skip it if you need a corrosion-proof tank for saltwater environments or if you prefer a lighter aluminum tank.
- Durable powder-coated steel resists chipping and rust
- Includes 12V rotary pump with 15 GPM flow rate
- Features a sight gauge for easy fuel level monitoring
Pros: Complete kit with pump and hose; Good value for the price
Cons: Steel can rust if coating is damaged; Pump is not self-priming
3. Transfer Flow 50 Gallon Replacement Fuel Tank: Best Fitment
The Transfer Flow 50 gallon replacement tank is a premium solution for expanding fuel capacity while keeping the factory bed clear. We researched installation guides and owner reviews; most users report a perfect fit and improved driving range. The tank is made from welded aluminum for durability. However, it is model-specific and expensive, and installation can be complex.
This tank is best for long-haul truckers who want maximum range without a bed-mounted tank. Skip it if you don’t own a compatible truck or if you prefer a universal tank that can be moved between vehicles.
- Custom-fit for popular truck models (Ford, Chevy, Dodge)
- Increases range without losing bed space
- Includes sending unit and fuel pump options
Pros: Seamless integration with OEM systems; Adds capacity without sacrificing cargo area
Cons: Limited to specific truck models; High cost and professional installation recommended
4. Dee Zee 50 Gallon Rectangular Fuel Tank: Runner Up
The Dee Zee 50 gallon tank offers a solid aluminum option at a moderate price. We evaluated owner feedback and found that most users are satisfied with its performance and durability. The reinforced corners are a nice touch for rough use. However, a few reviews mention minor weld imperfections, and the tank does not include a pump, which adds to the total cost.
This tank suits DIY users who want a lightweight tank and plan to add their own pump. Skip it if you want a complete kit or if you prefer a brand with more consistent quality control.
- Lightweight aluminum construction with reinforced corners
- Comes with lockable fuel cap and sump
- Designed for pickup bed mounting
Pros: Good weight savings over steel; Reinforced corners add durability
Cons: Some reports of weld quality inconsistency; No pump included
5. Midwest Tank 50 Gallon Diesel Transfer Tank: Heavy Duty Pick
The Midwest Tank 50 gallon tank is built like a tank, literally. We researched its specifications and found that the 12-gauge steel is among the thickest on the market, making it nearly indestructible. Owner feedback from construction sites confirms it holds up well. However, its weight is a major drawback: empty it weighs over 100 lbs, and full it’s extremely heavy, requiring a sturdy mount and careful handling.
This tank is ideal for stationary applications or heavy-duty trucks with reinforced beds. Skip it if you need a lightweight or portable tank, or if you want a pump included.
- 12-gauge steel construction for heavy use
- Powder-coated finish for corrosion resistance
- Includes 2-inch fill neck and lockable cap
Pros: Very thick steel for extreme durability; Easy to weld or modify if needed
Cons: Very heavy when full (over 400 lbs); No pump or hardware included
6. Better Built 50 Gallon Fuel Transfer Tank: Budget Pick
The Better Built 50 gallon tank is the most affordable option in our guide, making it accessible for budget-conscious buyers. We compared its features and found that the manual pump is functional but slow, which may frustrate users who transfer fuel frequently. The steel construction is adequate but requires careful maintenance to prevent rust. Owner feedback is mixed, with some praising the value and others noting pump durability issues.
This tank is suitable for occasional use, such as filling a tractor or generator. Skip it if you need fast transfers or plan to use it daily, as an electric pump model will save time.
- Affordable steel tank with manual rotary pump
- Red powder coat finish resists weather
- Includes 10 ft hose and nozzle
Pros: Very low cost for a complete kit; Manual pump works without electricity
Cons: Manual pump is slow (approx 1 gallon per 10 cranks); Steel prone to rust if coating scratches
7. Fuelbox 50 Gallon Portable Fuel Tank: Most Portable
The Fuelbox 50 gallon tank offers a unique portable design made from heavy-duty polyethylene. We researched its specs and found that its lightweight nature is a major advantage for users who need to move the tank between vehicles. The included pump is decent for the price. However, plastic is not as durable as metal, and some owners report cracks after rough handling or in freezing temperatures.
This tank is best for recreational users who need occasional portability, such as for camping or off-road trips. Skip it if you need a tank for daily heavy use or if you work in extreme cold climates.
- Lightweight polyethylene construction (approx 35 lbs empty)
- Includes 12V pump with 10 GPM flow
- Integrated handles for easier carrying
Pros: Very light and easy to move; Rust-proof plastic material
Cons: Less durable than metal tanks; Can crack if dropped or exposed to extreme cold
Frequently Asked Questions
Can a 50 gallon fuel tank be used for gasoline?
Yes, many 50 gallon fuel tanks are designed for both diesel and gasoline. However, you must check the tank’s compatibility. Aluminum and steel tanks are generally safe for gasoline, but polyethylene tanks may not be rated for gasoline due to permeation. Always verify the manufacturer’s specifications and use a fuel-rated pump and hose.
How much does a 50 gallon fuel tank weigh when full?
A full 50 gallon fuel tank weighs approximately 350 to 400 pounds, depending on the fuel type (diesel is about 7.1 lbs/gal, gasoline about 6.1 lbs/gal) plus the tank’s empty weight (ranging from 35 lbs for plastic to over 100 lbs for steel). Ensure your vehicle or mounting surface can support this weight.
Do I need a special pump for a 50 gallon tank?
Most tanks require a 12V DC pump for transfer, unless you opt for a manual rotary pump. Many tanks are sold without a pump, so you may need to purchase one separately. Look for pumps rated for your fuel type and with a flow rate suitable for your needs (e.g., 10-15 GPM).
Are 50 gallon fuel tanks DOT approved?
Not all tanks are DOT approved for on-road use. DOT approval ensures the tank meets safety standards for transporting fuel on public roads. Tanks made of aluminum or steel with proper venting and labeling are more likely to be DOT approved. Check the product description for DOT compliance before purchasing for highway use.
How do I install a 50 gallon fuel tank in my pickup bed?
Installation typically involves placing the tank in the bed and securing it with bolts or straps through pre-drilled holes. You may need to drill holes in the bed for mounting. Ensure the tank is level and does not interfere with the tailgate. For electric pumps, connect to the truck’s battery with proper fusing. Always follow the manufacturer’s instructions and consider professional installation if unsure.
Our Verdict
After researching manufacturer specs, safety standards, and owner feedback, we recommend the RDS Manufacturing 50 Gallon Rectangular Fuel Tank as our top pick for its premium aluminum build, excellent durability, and compatibility with pump kits. For a complete value package, the Northern Tool + Equipment 50 Gallon Diesel Fuel Tank is a strong runner-up, offering a pump and solid steel construction at a fair price.
