Hauling a dozen five-gallon jugs in the bed of your truck is a recipe for spilled fuel, strained muscles, and wasted time. A proper 50-gallon fuel tank transforms your vehicle into a mobile refueling station, letting you pump diesel or gasoline directly into tractors, generators, heavy equipment, or your own pickup without ever touching a handheld can.
I’m Min — the co-founder and writer behind Gadgets Feed. I have spent months analyzing the material composition, pump flow rates, fitting standards, safety features, and real-world durability data behind the best fuel transfer tanks to help you pick the right one for your truck, farm, or job site.
This guide breaks down the market’s top options, compares steel versus polyethylene construction, and explains the specs that actually matter so you can confidently choose the best 50 gallon fuel tank for your specific refueling needs.
How To Choose The Best 50 Gallon Fuel Tank
Selecting a fuel transfer tank comes down to three core trade-offs: material (steel vs. polyethylene), pump integration (built-in or aftermarket), and how the tank fits your specific truck bed, trailer, or job site layout. A tank that is too tall will interfere with a tonneau cover, while one without proper mounting hardware will shift during transport.
Material: Steel vs. Rotomolded Polyethylene
Steel tanks, typically 14-gauge or thicker, offer the highest puncture resistance and can be welded for custom fittings, but they are heavy, prone to rust if the interior coating chips, and cost more to ship. Polyethylene tanks made via rotomolding are seamless, corrosion-proof, and lighter—making them easier to install and move when empty—though they are more susceptible to impact damage from sharp objects in a truck bed.
Pump System: Flow Rate and Compatibility
A 12V electric pump rated at 10 or 10.6 gallons per minute (GPM) is the standard for fast refueling. You also want a hose length of at least 13 feet so you can reach equipment on both sides of the truck. Look for an auto shut-off nozzle to prevent overflows and a duplex filter system (pre-filter and secondary filter) to keep debris out of your engine.
Mounting, Capacity Accuracy, and Safety
Check whether the tank includes molded-in strap grooves, forklift pockets, or steel mounting tabs. Some tanks have a listed “maximum” capacity that differs from the “safety fill” volume—expect a 50-gallon tank to hold roughly 52 gallons at its absolute brim but only 45 to 48 gallons when filled to a safe, everyday level. Lockable filler caps and vented caps that prevent vacuum lock are essential for secure operation.
Quick Comparison
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| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| BreAro 50 Gal (Black) | Poly Pump Combo | Diesel & Gasoline transfer from truck bed | 10.6 GPM pump, 13.1 ft hose | Amazon |
| VEVOR 58 Gal | Poly Pump Combo | High-volume diesel refueling | Duplex filter system, 10.6 GPM | Amazon |
| Dee Zee DZ92556NSB | Steel Transfer Tank | Permanent truck bed install with pump | 14-gauge steel, 5 baffles | Amazon |
| Jobox Crescent 50 Gal | Square Steel Tank | Heavy-duty diesel or gasoline storage | 85 lbs, 2″ NPT bungs | Amazon |
| RDS MFG 45 Gal Aluminum | Aluminum Auxiliary | Long-haul towing, under tonneau | 42 lbs aluminum, no rust | Amazon |
| RDS MFG 60 Gal Aluminum | Aluminum Auxiliary | Diesel range extension for long trips | 55x20x12.75 in, 60 gal rating | Amazon |
| RTS Plastics PCO-50 | Entry-Level Poly | Water & non-flammable liquid storage | 30 lbs, molded grad strip | Amazon |
| ExploreHorizon 48 Gal | Poly Pump Starter | Entry-level diesel transfer with pump | 10 GPM pump, auto shut-off nozzle | Amazon |
| BreAro 50 Gal (Red) | Poly Pump Combo | Mobile refueling for farm equipment | 10.6 GPM pump, forklift pockets | Amazon |
In‑Depth Reviews
1. BreAro 50 Gallon Fuel Transfer Tank (Black)
The BreAro 50-gallon tank delivers the complete package: a rotomolded HDPE body that resists dents and corrosion, an integrated 12V pump pushing 10.6 GPM, and a 13.1-foot rubber hose with an auto shut-off nozzle. This eliminates the need to buy a separate pump and wiring kit, saving you both installation time and money. The built-in fuel level indicator lets you monitor remaining capacity at a glance, and the tank works with diesel, gasoline, and kerosene.
At roughly 52 gallons of actual fill capacity, the BreAro holds slightly more than advertised, a common and welcome bonus in this category. The forklift pockets built into the base make loading the full tank onto a truck bed straightforward, and the 360-degree swivel connector on the hose prevents kinking during use. Multiple owners report that it beats hauling five-gallon cans by a wide margin for tractors, generators, and job site equipment.
The pump wiring is compatible with standard 12V battery clamps, and the included pre-filter keeps debris from entering your equipment’s fuel system. While the tank is not a true 58 gallons as some buyers noted, it fills within a few inches of the top at around 52 gallons, giving you roughly 20% more usable fuel than a standard fifty-gallon spec. For anyone needing a self-contained, mobile refueling solution, this is the most balanced choice on the market today.
Why it’s great
- Complete pump-and-tank system ready out of the box
- HDPE resists rust and weather exposure
- Forklift pockets simplify placement in a truck bed
Good to know
- Actual fill capacity is ~52 gallons, not the 58 listed
- Pump wiring may require minor securing to prevent vibration
2. VEVOR 58 Gallon Portable Diesel Tank
VEVOR’s entry stands out for its dual-stage filtration system, which uses an internal pre-filter to catch large particles and an outer premium filter to trap microscopic impurities like metal shavings and colloids. This matters enormously for long engine life when refueling directly from a storage tank. The pump delivers 10.6 GPM from a 140W motor, and the 13.1-foot hose reaches both sides of a standard long-bed pickup.
The tank is blow-molded from LLDPE with a wall thickness up to 12 mm in the thickest areas, making it one of the most impact-resistant poly tanks available. A copper lock secures the lid, and the mechanical fuel gauge is easy to read. The safety fill capacity is 52 gallons, with a maximum brim of 58 gallons, so you can realistically expect around 48 usable gallons before you hit the recommended fill line.
Some buyers reported that the fuel filter was only finger-tight from the factory, so plan to snug all fittings with Teflon tape before first use. The hose and nozzle fit inside the lid for secure storage, and the integrated fork pockets make loading straightforward. Given the filtration quality and the 12 mm wall thickness, this tank is built for frequent, high-volume diesel use on farms and construction sites.
Why it’s great
- Duplex filtration delivers exceptionally clean fuel
- Thick 12 mm walls in high-impact zones
- Lockable copper lid adds security
Good to know
- Factory assembly may require retightening of all fasteners
- Not a full 58 gallons at safe fill — real usable capacity ~48 gallons
3. Dee Zee DZ92556NSB Transfer Tank
For those who prefer steel over plastic, the Dee Zee DZ92556NSB is built from heavy-duty 14-gauge steel with radius curves that eliminate weld stress points. Five internal baffles keep fuel from sloshing during transit, which is critical for stability when towing a fifth-wheel or driving off-road. The tank includes mounting tabs that secure directly to the truck bed, and a drain plug simplifies maintenance.
Although listed at 42 gallons, this tank is designed as a permanent auxiliary transfer tank—you add your own pump and hose setup, which gives you control over pump quality and flow rate. Many owners pair it with a 12V pump and automatic nozzle for a custom fit that outperforms many all-in-one units. The all-steel construction also resists punctures from cargo sliding around in the bed.
Some units arrive with slightly bent mounting tabs due to shipping, but these are easily straightened with pliers. The tank sits below the bed rail on most full-size trucks, allowing a tonneau cover to fit over the top. For anyone who wants a rugged, weldable tank that can outlast the truck itself, the Dee Zee is the steel benchmark in this size class.
Why it’s great
- 14-gauge steel resists dents and punctures
- Five baffles minimize fuel slosh
- Mounting tabs for secure bed installation
Good to know
- 42-gallon capacity is smaller than true 50-gallon options
- Shipping can bend mounting tabs
4. Jobox Crescent 50 Gallon Steel Transfer Tank
Jobox has been a staple in the truck toolbox and tank market for decades, and the Crescent 50-gallon steel tank reflects that legacy. It features internal baffles to control fluid movement, 2-inch NPT reinforced bungs that allow pump mounting on either side, and built-in lifting rings for moving the empty tank. The lockable filler cap and coupler prevent pressure buildup and unauthorized access.
At 85 pounds, this is a heavy tank, but that weight comes from thick alloy steel that simply won’t crack or deform under hard use. The white interior anti-corrosion coating is a major advantage over bare steel tanks, especially if you plan to alternate between diesel and gasoline. The tank fits universally in full-size truck beds and includes heavy-duty brackets for securing it to the bed.
A small number of buyers reported leaks at the fill cap, likely due to pressure buildup in hot weather, so venting the cap properly is essential. The square shape fits neatly into the front corner of a truck bed, leaving room for other gear. For a no-nonsense steel tank that can be pumped from either side, the Jobox Crescent is a professional-grade choice.
Why it’s great
- Anti-corrosion interior coating protects fuel quality
- Reinforced 2″ NPT bungs on both sides
- Lockable cap and pressure-relief coupler
Good to know
- 85 lb empty weight is heavy for solo loading
- Fill cap venting must be maintained to avoid pressure leaks
5. RDS MFG INC 45 Gallon Aluminum Auxiliary Tank
RDS Manufacturing is a trusted name in aluminum fuel tanks, and this 45-gallon rectangular model weighs only 42 pounds—less than half the weight of a comparable steel tank. The fully welded seams eliminate leak points, and the aluminum body will never rust, making it ideal for long-term installations in trucks that see salt, rain, or humidity. It is designed for gasoline auxiliary fueling when siphoned from the top using an electric pump.
The rectangular shape fits under tonneau covers on most long-bed trucks, and the slim profile (approximately 55 x 20 x 12.75 inches) allows it to sit behind the wheel well without blocking bed access. Owners report installation times of under two hours on RAM and Ford trucks, with straightforward drilling and mounting. The billet-style fill cap adds a premium touch.
A few buyers noted that the tank ships without protective packaging, which can lead to bent mounting brackets. These are easily straightened, but the lack of packaging is worth knowing before delivery. For a lightweight, rust-proof auxiliary tank that nearly doubles your range for towing, the RDS aluminum tank is a top-tier choice.
Why it’s great
- Aluminum construction — zero rust
- Only 42 lbs for easy handling
- Fits under tonneau covers
Good to know
- 45-gallon capacity is below the 50-gallon benchmark
- Brackets may arrive bent due to minimal packaging
6. RDS MFG INC 60 Gallon Aluminum Tank
For diesel truck owners who need maximum range without welding a custom tank, the RDS 60-gallon aluminum model adds roughly 60 gallons of auxiliary capacity—bringing your total to around 110 gallons on a standard pickup. The tank is built to fit under a tonneau cover, measuring 55 x 20 x 12.75 inches, and includes a locking automotive-style fill cap. It is a vehicle-specific fit designed for long-bed trucks.
The aluminum construction eliminates rust concerns, and the slim profile allows it to sit snugly behind the cab. Buyers report actual fill capacity closer to 52 gallons at the first pump shutoff, with an additional 5 gallons possible after foam settles, totaling roughly 57 gallons. The included fill hose and plumbing adapters require careful routing, especially in Ford Super Duty trucks with factory bed liners.
Installation requires an RDS install kit (sold separately) and some cutting of the metal fill neck. Expect about two hours for a competent DIY install. For long-distance towing where you need to skip fueling stations for 12 hours straight, this tank delivers. Just be aware that the actual usable capacity is closer to 50 gallons than the marketed 60.
Why it’s great
- Aluminum body with locking fill cap
- Fits under most tonneau covers
- Doubles fuel range for towing
Good to know
- Actual capacity around 52-57 gallons, not 60
- Requires separate install kit and some modification
7. RTS Plastics PCO-50 Gallon Rotomolded Tank
The RTS Plastics PCO-50 is a rotomolded polyethylene tank designed primarily for water and non-flammable liquids, though many buyers adapt it for diesel storage with an external pump. At just 30 pounds, it is the lightest tank in this comparison, and the molded-in gallon grad strips let you easily monitor liquid levels. The vented cap prevents vacuum lock during pump operation, and the included siphon elbow allows complete drainage.
This tank is proudly manufactured in the USA and backed by a 1-year warranty. The seamless rotomolded construction resists impact and weather, and the pre-installed bulkhead fitting provides a quick connection point for hoses or valves. Owners use it for RV water storage, mobile detailing, and dry camping—not just fuel. The large 38 x 19 x 22-inch footprint fits well in a pickup bed.
While it lacks an integrated pump, hose, or nozzle, the low entry cost and American manufacturing make it a solid foundation for a custom setup. If you need a 50-gallon tank primarily for water or fertilizer mixing, or if you want to build your own pump system from scratch, the RTS tank is the most affordable starting point available.
Why it’s great
- Only 30 lbs for easy handling
- Made in the USA with 1-year warranty
- Vented cap and siphon elbow included
Good to know
- Not rated for flammable fuel transfer without external pump
- No built-in pump or hose assembly
8. ExploreHorizon 48 Gallon Fuel Transfer Tank
ExploreHorizon’s 48-gallon tank brings an integrated 12V electric pump rated at 10 GPM, an auto shut-off nozzle, and a 13-foot hose to the entry-level segment. The heavy-duty polyethylene body resists dents, rust, and corrosion, and the 24 x 24 x 24-inch square footprint fits neatly into the front corner of a truck bed. The fuel level indicator lets you track usage without opening the cap.
Many buyers use this tank to eliminate trips to the gas station with multiple five-gallon containers for farm tractors and job site equipment. The pump runs off standard battery clamps, and the auto shut-off nozzle prevents messy overflows. At 65 pounds empty, it is manageable with two people or a small forklift for loading when full.
A few owners noted missing mounting screws and a loose pump upon delivery — plan to inspect and tighten all fittings before first use. The tank is suitable for diesel only, so gasoline users should check compatibility carefully. For a budget-friendly all-in-one system that saves you from ever carrying a five-gallon can again, this is the most practical entry point.
Why it’s great
- Complete pump-and-nozzle system included
- Compact 24-inch square footprint
- Auto shut-off prevents spillage
Good to know
- 48-gallon capacity is slightly smaller than 50-gallon tanks
- Some units arrive with loose components needing tightening
9. BreAro 50 Gallon Fuel Transfer Tank (Red)
The red variant of the BreAro 50-gallon tank shares the exact same internal specs as the black version: a 10.6 GPM 12V pump, 13.1-foot hose, auto shut-off nozzle, and HDPE construction. It is essentially the same product in a different color, making it a good option if red matches your truck’s toolboxes or if you want high visibility on a job site. The integrated forklift pocket design allows stable lifting onto a vehicle when the tank is full.
The pump features a built-in filter to ensure clean fuel delivery, and the 360-degree connector prevents hose twisting during use. The tank works with diesel, gasoline, and kerosene, giving you versatility across equipment types. The fuel level indicator is accurate and easy to read, and the compact dimensions (37.8 x 22.4 x 22.4 inches) fit most truck beds without interfering with wheel wells.
As with the black version, actual fill capacity is about 52 gallons, and some owners noted that the pump wiring could be more securely attached. BreAro offers responsive customer support with a 24-hour response window. If you prefer a red tank for visibility or aesthetic reasons, this is functionally identical to the top pick and delivers the same excellent value.
Why it’s great
- Identical specs to top pick in a high-visibility color
- Forklift pockets for easy full-load transport
- Versatile fuel compatibility (diesel, gas, kerosene)
Good to know
- Actual capacity ~52 gal, not a true 58
- Pump wiring may benefit from aftermarket securement
FAQ
Can I use a 50-gallon fuel tank with gasoline or only diesel?
How do I clean a fuel transfer tank after switching fuel types?
Do I need to ground a polyethylene fuel tank during pumping?
Final Thoughts: The Verdict
For most users, the best 50 gallon fuel tank winner is the BreAro 50 Gallon Black because it bundles a 10.6 GPM pump, auto shut-off nozzle, and durable HDPE construction into a single, easy-to-mount package. If you want the best filtration for long engine life, grab the VEVOR 58 Gallon with its duplex filter system and 12 mm thick walls. And for permanent steel installation that will outlast your truck, nothing beats the Dee Zee DZ92556NSB with its five baffles and 14-gauge construction.