Answering the need for integrated storage and fueling, these best-in-class auxiliary fuel tank toolbox combos pair a transfer tank with a built-in tool box. They’re ideal for contractors, farmers, hunters, and off-road enthusiasts who require extra fuel capacity plus organized gear. The following picks balance capacity, construction, and ease of use, helping you choose the right setup for your vehicle and workload.
Buyer’s table (quick reference)
| Product | Capacity | Material | Best For |
|---|---|---|---|
| Dee Zee DZ92647SB (Steel, 92 gal) | 92 gallons | Steel | Heavy-duty needs, rugged environments |
| RDS MFG INC Fuel Tank Tool Combo (60 gal) | 60 gallons | Metal | Budget-conscious with steady fuel needs |
| RDS Fuel Transfer/Aux Tank/Toolbox Combo w/ 8 GPM Pump (60 gal) | 60 gallons | Aluminum | Integrated pump for quick fueling |
| PRUNkuar 60 Gallon Aluminum Combo (60 gal) | 60 gallons | Aluminum | Lightweight, corrosion resistance |
| Dee Zee DZ92647 (Aluminum, 92 gal) | 92 gallons | Aluminum | Balanced weight and durability |
Dee Zee DZ92647SB Steel Combo: 92 Gallon
Best for: Heavy-duty applications where corrosion protection and rugged steel construction are priorities. The 14-gauge steel transfer tank supports demanding use, while the tool box adds organized storage space. The NRT powder coat is designed to improve corrosion resistance in harsh environments.
Why selected: This model emphasizes durability with thick-gauge steel and a protective finish, making it suitable for frequent roadwork or off-road tasks where exposure to moisture and road debris is common.
Caution: Steel construction adds weight; ensure your mounting system and vehicle payload can handle the load. Regular maintenance of the powder coat helps prevent rust over time.
RDS MFG INC Fuel Tank Tool Combo (60 gal)
Best for: Those needing a straightforward 60-gallon setup with a sturdy frame. This combo offers a broad range of tanks and dimensions to fit different vehicles and mounting areas.
Why selected: It provides a solid, reliable solution for people who want an integrated fuel tank and toolbox without additional pumping or specialty features.
Caution: The product note mentions gasoline fueling considerations; verify compatibility with local fuel types and legal requirements before use.
RDS Fuel Transfer/Aux Tank/Toolbox Combo with 8 GPM Pump
Best for: Users who value built-in pumping capability for faster refueling on-site. The 8 GPM pump and robust mounting brackets simplify installation and operation.
Why selected: Full welding and hardware support, plus a spin collar for easy pump installation, make this a practical choice for frequent fueling tasks and field operations.
Caution: The pump is dependent on a power source; plan for a suitable 12VDC supply and wiring requirements during installation.
RDS MFG INC RDS 71789 51 Gallon Combo
Best for: Smaller-capacity needs where a compact footprint is essential. This 51-gallon option fits tighter spaces while still providing a toolbox component.
Why selected: The product line’s long-standing availability and versatility in capacities help accommodate vehicles with limited mounting space.
Caution: With a smaller capacity, plan for fuel logistics over longer jobs to avoid frequent refueling stops.
PRUNkuar 60 Gallon Aluminum Combo
Best for: Buyers seeking a lighter weight aluminum option with robust corrosion resistance and a built-in tool box.
Why selected: Aluminum construction reduces overall weight while maintaining durability, making it easier to mount on lighter pickups or ATVs.
Caution: Aluminum tanks can be more susceptible to dents in rocky terrains; ensure proper mounting and protection in off-road use.
Dee Zee DZ92647B Aluminum Combo: 92 Gallon
Best for: Those who want a high-capacity aluminum option with a tool box, combining lighter weight with corrosion resistance.
Why selected: Aluminum construction provides balance between bulk and portability, suitable for longer-haul or remote work where extra fuel is beneficial.
Caution: Aluminum durability depends on mounting and protective handling; ensure secure installation to avoid loosening under vibration.
Dee Zee DZ92647 Aluminum 92 gal
Best for: Heavy-use situations where the payload is spread across fuel and gear with aluminum construction for weight savings.
Why selected: This variant emphasizes aluminum resiliency and the convenience of a large 92-gallon capacity in a lighter package than steel equivalents.
Caution: Aluminum corrosion resistance depends on coatings and maintenance; perform periodic checks and protect against salt exposure where applicable.
Buying Guide: Key Considerations For Choosing An Auxiliary Fuel Tank Toolbox Combo
- Capacity needs: Decide how much fuel you typically carry and how much gear you need stored alongside. Larger tanks reduce refueling frequency but add weight.
- Material choice: Steel offers maximum durability but heavier weight; aluminum saves weight but may require more careful protection in harsh environments. Aluminum is generally corrosion-resistant but may dent more easily.
- Mounting and fit: Measure available space on your vehicle and verify mounting hardware compatibility. Ensure the combo fits behind the cab or in a bed area without obstructing other components.
- Fuel compatibility: Some models specify gasoline compatibility or limitations. Confirm your fuel type and local regulations before purchase.
- Integrated features: Consider pumps, collars, and tool box dimensions. Spin collars or easy-pump installations can simplify fueling on the job site.
- Weight considerations: Heavier tanks affect vehicle handling and fuel economy. Balance tank capacity with payload ratings and suspension capability.
- Maintenance: Powder-coated finishes and protective coatings extend life in corrosive environments. Regular inspection helps prevent rust and leaks.
Frequently Asked Questions
- What is an auxiliary fuel tank toolbox combo?
It is a combined fuel storage tank and a built-in tool box designed to provide extra fuel capacity along with organized storage for tools and equipment.
- Which material is best for rugged use?
Steel offers maximum durability and impact resistance, while aluminum reduces weight and can resist corrosion with proper finish.
- Is an on-tank fuel pump necessary?
Not always, but a built-in pump (as in some models) speeds up refueling on-site, especially for larger capacity tanks.
- How do I ensure a proper fit on my vehicle?
Check available bed or frame space, mounting stud spacing, and weight capacity. Compare with the product’s dimensions and vehicle compatibility notes.
- What maintenance does a combo require?
Inspect coatings, seals, and welds regularly. Clean and protect any exposed metal to prevent rust or corrosion.
- Can I use these for fuels other than gasoline?
Some models are rated for specific fuels; verify material compatibility with diesel, kerosene, or other fuels before use.