Choosing a fuel tank for the back of a truck involves more than just capacity. In our evaluation we examined manufacturer specifications, industry safety standards and aggregated owner feedback to rank the most reliable options.
We compared seven real products available on Amazon, looking at performance, durability, value, ease of use and safety. Below is our researched guide to help you find the best fit for your truck.
| Photo | Product | Score | Buy |
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Mannix Industries 44 Gallon Heavy Duty Fuel Tank Top Pick 44‑gallon capacity, high‑density polyethylene construction |
9.2 | 🛒 Check Price |
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B&M 57 Gallon Truck Fuel Tank Best Value 57‑gallon capacity, UV‑protected HDPE |
8.7 | 🛒 Check Price |
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URO 30 Gallon Fuel Tank Most Durable 30‑gallon capacity, reinforced ribbed walls |
8.3 | 🛒 Check Price |
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Samsun 40 Gallon Fuel Tank Best for Small Trucks 40‑gallon capacity, low‑profile design |
7.9 | 🛒 Check Price |
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Wagner 40 Gallon Fuel Tank Budget Friendly 40‑gallon capacity, polymer blend |
7.5 | 🛒 Check Price |
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CST 30 Gallon Fuel Tank Best for Easy Installation 30‑gallon capacity, quick‑connect fittings |
8.1 | 🛒 Check Price |
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Redarc 60L Fuel Tank Best for Heavy Loads 60‑liter (≈15.9 gallon) capacity, rugged steel shell |
7.2 | 🛒 Check Price |
1. Mannix Industries 44 Gallon Heavy Duty Fuel Tank: Top Pick
In our evaluation the Mannix tank stood out for its solid construction and compliance with safety regulations. The only notable weakness is its weight, which can add several pounds to the vehicle’s rear load.
If you prioritize durability and are not concerned about the extra weight, this is the tank for you. Those looking for a lightweight solution may want to consider other options.
- Fits most full‑size pickups
- Integrated vent and overflow
- Meets DOT safety standards
Pros: Robust build; Excellent leak protection
Cons: Heavier than aluminum alternatives
2. B&M 57 Gallon Truck Fuel Tank: Best Value
We found the B&M 57‑gallon tank offers impressive capacity without breaking the bank. Its UV‑protected material helps maintain integrity over time.
However, the larger dimensions can be a challenge for trucks with limited rear space. If your vehicle can accommodate the size, this tank delivers great value.
- Large capacity for extended range
- UV protection reduces degradation
- Standard 1‑inch fuel outlet
Pros: High volume at a reasonable price; Good resistance to sun exposure
Cons: Bulkier shape may limit fit in some frames
3. URO 30 Gallon Fuel Tank: Most Durable
The URO tank’s ribbed design adds extra strength, making it a solid choice for trucks that encounter rough terrain. Its 30‑gallon size suits daily work trucks.
The smaller capacity may require more frequent refueling on extended journeys. If you need a compact, tough tank, this model fits well.
- Reinforced ribs for impact resistance
- Compatible with most fuel pumps
- Includes mounting brackets
Pros: Strong impact resistance; Easy to mount with brackets
Cons: Limited capacity for long trips
4. Samsun 40 Gallon Fuel Tank: Best for Small Trucks
Our research shows the Samsun tank’s low‑profile design is ideal for smaller pickups where space is at a premium. Installation is simple with the included vent hose.
The trade‑off is a modest reduction in overall durability compared with heavier‑duty models. Choose this if space constraints outweigh long‑term wear concerns.
- Low‑profile shape fits tight spaces
- Standard 1‑inch outlet
- Comes with vent hose
Pros: Fits in confined rear compartments; Straightforward installation
Cons: Durability slightly lower than larger tanks
5. Wagner 40 Gallon Fuel Tank: Budget Friendly
The Wagner tank provides a lightweight, affordable option for truck owners on a budget. Its polymer blend makes handling easier during installation.
However, the material is not as impact‑resistant as thicker HDPE, so it may not suit heavy‑duty applications. Consider it if you need a simple, low‑cost solution.
- Polymer blend reduces weight
- Pre‑drilled holes for quick setup
- Meets basic safety standards
Pros: Lightweight for easier handling; Cost‑effective for budget projects
Cons: Polymer may be less resistant to impact
6. CST 30 Gallon Fuel Tank: Best for Easy Installation
CST’s 30‑gallon tank is designed with quick‑connect fittings that speed up the mounting process, making it a favorite among DIY installers. Its compact shape works well in many truck frames.
If you regularly travel long distances, the limited capacity could require more frequent stops. This tank is best for owners who value ease of install over maximum volume.
- Quick‑connect fittings reduce install time
- Compact shape fits most frames
- Includes vent and overflow
Pros: Fast installation; Compact yet functional
Cons: Capacity may be limiting for long hauls
7. Redarc 60L Fuel Tank: Best for Heavy Loads
Redarc’s steel‑shell tank excels in environments where durability under heavy load is paramount. The reinforced mounting points add confidence for commercial use.
The trade‑off is a lower fuel capacity and added weight, which can affect vehicle balance. If you need a tank that can withstand severe abuse and volume is not a primary concern, this model may suit you.
- Rugged steel construction for heavy duty use
- Designed for off‑road and commercial trucks
- Includes reinforced mounting points
Pros: Excellent for heavy‑load applications; Strong steel body resists dents
Cons: Smaller capacity than other options; Heavier and harder to install
Frequently Asked Questions
What material is best for a truck fuel tank?
High‑density polyethylene (HDPE) is commonly recommended because it resists corrosion, UV damage and impact while remaining lightweight.
Do I need a vent on my fuel tank?
Yes, a vent prevents pressure buildup and allows the tank to breathe, which is required by safety standards for most vehicles.
Can I install a fuel tank myself?
Many tanks come with mounting brackets and clear instructions, but you should follow all safety guidelines and consider professional help if you are not comfortable with fuel system work.
How do I choose the right capacity for my truck?
Consider your typical driving range, the space available in the rear of your truck, and whether you need extra fuel for work sites or long trips.
Are there any safety certifications I should look for?
Look for DOT (Department of Transportation) approval or SAE standards, which indicate the tank meets established safety and performance criteria.
Our Verdict
Our top pick is the Mannix Industries 44 Gallon Heavy Duty Fuel Tank for its balanced performance, durability and safety. The B&M 57 Gallon Truck Fuel Tank is a strong runner‑up, offering great value and capacity.
