Best Auxiliary Fuel Tank With Tool Box Options for Your Truck

Answering the demand for combined fuel storage and toolbox utility, this guide highlights five solid picks for buyers who want a single, rugged unit. Best for work trucks and farm fleets, these combos blend a fuel tank with built-in storage to save bed space and simplify fueling. The top picks cover varying capacities, pump options, and construction materials to match different hauling needs and environments.

The table below compares the selected products at a glance.

Product Brand Capacity Key Feature
RDS MFG INC – 72548 Fuel Transfer Tank/Auxiliary Fuel Tank/Toolbox Combo – 60 Gallon RDS MFG INC 60 Gal Integrated toolbox and fuel tank with heavy-duty construction
RDS Fuel Transfer/Auxiliary Tank/Toolbox Combo with 8 Gpm Pump – 60-Gal. Capacity RDS MFG INC 60 Gal 8 GPM pump, welded seams, aluminum mounting brackets
Dee Zee DZ92647SB (92 gallon) Black Steel Combo Transfer Tank & Tool Box DEE ZEE 92 Gal Steel transfer tank with bolted storage box, corrosion protection
Dee Zee DZ92647B Black (92 gallon) Black Aluminum Combo Transfer Tank & Tool Box DEE ZEE 92 Gal Aluminum construction with protective powder coat, built-in toolbox
51 Gallon Aluminum Fuel Transfer Tank Toolbox Combo with 12 GPM Pump Vigorighter 51 Gal 12 GPM pump, compact footprint, corrosion-resistant aluminum

RDS MFG INC – 72548 60 Gallon Tank/Toolbox Combo

RDS MFG INC 72548 60 Gallon Tank/Toolbox Combo

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Best for: Tradesmen who want a compact, all-in-one unit with a separate toolbox and a reliable 60-gallon fuel capacity. The design emphasizes straightforward mounting and a sturdy toolbox integration, making it a favorable choice for pickup beds and service vehicles.

Caution: Specific pump options are not listed in the feature set; confirm compatibility with your preferred fueling pump and mounting layout before purchase.

RDS Fuel Transfer/Auxiliary Tank/Toolbox Combo with 8 Gpm Pump – 60 Gal

RDS Fuel Transfer/Auxiliary Tank/Toolbox Combo with 8 Gpm Pump

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Best for: Users who require faster fueling in the field, thanks to an 8 GPM pump. The fully welded seams and aluminum mounting brackets support heavier daily use in rugged environments.

Caution: The description highlights pump capability but provides limited detail about toolbox dimensions—verify fit for your tool storage needs and available space in your truck bed.

Dee Zee DZ92647SB (92 Gal) Black Steel Combo

DEE ZEE DZ92647SB Steel Transfer Tank & Tool Box

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Best for: Buyers seeking maximum durability with a steel transfer tank and a bolted-on storage box. The steel construction and corrosion-protective finish are suited to harsher work sites and longer service life.

Caution: Heavier steel units can add significant weight; ensure your vehicle’s payload and mounting method can support the combined load.

Dee Zee DZ92647B Black Aluminum Combo

DEE ZEE DZ92647B Aluminum Combo Tank & Toolbox

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Best for: Fleet managers prioritizing a lighter weight aluminum unit with a durable powder-coated finish. Aluminum reduces weight while maintaining rugged durability and toolbox practicality.

Caution: Aluminum builds may have lower impact tolerance in extremely rough environments compared to steel; plan protective mounting and storage accordingly.

51 Gallon Aluminum Fuel Tank Toolbox with 12 GPM Pump

51 Gallon Aluminum Fuel Tank Toolbox with 12 GPM Pump

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Best for: Buyers who want a compact, all-in-one unit with a robust 12 GPM pump and an integrated toolbox, designed to maximize truck bed space without sacrificing fuel capacity or storage.

Caution: The overall dimensions indicate a substantial footprint; verify fit within your truck bed and ensure hose routing won’t interfere with other cargo.

Buying Guide — Key Considerations For Auxiliary Tank And Toolbox Combos

  1. Capacity vs. space: Balance the fuel capacity against your vehicle bed dimensions. Larger tanks offer more range but require more mounting space and may impact weight distribution.
  2. Material matters: Steel offers maximum durability; aluminum reduces weight and corrosion risk, especially in salt-prone environments. Consider your climate and usage patterns.
  3. Pump specifications: Higher GPM pumps speed up fueling but may increase energy draw and installation complexity. Confirm electrical requirements and compatibility with your vehicle.
  4. Toolbox integration: Check toolbox dimensions, mounting style, and interior organization features. A well-integrated toolbox should not compromise fuel flow or accessibility.
  5. Mounting and brackets: Heavy-duty mounting brackets and welded seams improve durability. Ensure the mounting surface and chassis are compatible with the unit’s weight and dimensions.
  6. Corrosion protection: Look for powder coatings or protective finishes, especially for exposed or off-road use in harsh environments.
  7. Maintenance and serviceability: Favor designs with easy hose access, clean-out capabilities, and straightforward pump replacement or upgrades.
  8. Safety and compliance: Ensure proper venting, spill containment, and local regulations regarding auxiliary fuel storage on vehicles.

Frequently Asked Questions

  1. What is the main benefit of an auxiliary fuel tank with a toolbox?
  2. Is aluminum or steel better for these combos?
  3. Do all units include a fuel pump?
  4. How do I determine the right capacity for my truck?
  5. Can I install these units myself, or do I need a professional?
  6. What maintenance is required for long-term durability?