Best Auxiliary Truck Fuel Tanks for Onboard Fuel
Auxiliary fuel tanks and toolbox combos help extend range and improve utility for trucks, off-road rigs, and work fleet vehicles. The following selections emphasize durability, compatibility, and practical features like welded seams, aluminum construction, and integrated transfer pumps. Below, five top picks are reviewed with an objective view of their capabilities and common use cases to assist in a well-informed purchase.
| Product | Capacity | Material | Key Benefit |
|---|---|---|---|
| RDS MFG INC – 72548 | 60 Gallon | Unknown (Auto Accessory) | Combination fuel tank and toolbox for multifunction use |
| RDS MFG INC – 71804 | 37 Gallon | Metal | Flexible options for various storage and fueling needs |
| RDS MFG INC – 60-Gallon Fuel Tank | 60 Gallon | Metal | Wide compatibility and auxiliary fueling |
| RDS MFG INC – 71083 | 45 Gallon | Metal | Fully welded seams for durability |
| BLACKHORSE-RACING – 51 Gallons | 51 Gallon | Aluminum | High-efficiency pump and sturdy toolbox combo |
RDS MFG INC – 72548 Fuel Transfer Tank/Auxiliary Tank/Toolbox Combo
The 72548 model combines a 60-gallon auxiliary fuel tank with a toolbox, aimed at providing both fuel storage and extra storage space. Its build emphasizes utility for auto accessories applications with attention to overall dimensions. This unit is positioned to fit a range of trucks and service bodies where a compact, all-in-one solution is desired.
Key features include a sturdy construction and a design tailored to US manufacturing standards. The package dimensions indicate a sizeable addition to a pickup or service vehicle, making it suitable for long trips or demanding work days where refueling availability and organization matter. Consider available bed length and mounting space when evaluating fitment.
RDS MFG INC Auxiliary Fuel Tank 37Gal – 71804
The 37-gallon auxiliary tank is described as part of a broader line offering various capacities to match different needs. It supports gasoline fueling and can be used with an electric fuel pump to siphon from the top of the tank. This model is suitable for users seeking a mid-sized solution with straightforward fueling capability, suitable for mid-size trucks and utility vehicles.
Its design emphasizes flexibility in fuel management, allowing for easier transition between storage and pumping tasks. Potential buyers should verify bed dimensions and pump compatibility to ensure seamless operation in their fleet setup.
RDS MFG INC Fuel Tank – 60-Gallon
This 60-gallon tank continues the theme of expansive auxiliary fuel storage with a focus on compatibility with various short-bed configurations. The description notes that gasoline fueling is allowed via an electric pump at the top, which supports efficient fuel transfer. Prospective buyers should measure bed depth and check mounting clearance to confirm proper fit for their truck model.
Durability is highlighted through the mention of top-fuel access and a full range of tank variations from RDS MFG INC, making it a strong candidate for those who prefer standardized components across a fleet.
RDS MFG INC 71083 Rectangular Auxiliary/Transfer Tank – 45 Gallon
The 45-gallon adjustable tank emphasizes fully welded seams for durability, a common requirement for reliable long-term use in demanding environments. It is described as part of a broader assortment of tanks designed to fit different needs, with fueling access via top-mounted electric pumps. The unit’s compact size makes it a practical choice for mid-sized trucks or service vans requiring additional range without overpacking the bed area.
Consider mounting options, tank height, and clearance to avoid interference with trailer hitches or suspension components when integrating into a fleet vehicle.
BLACKHORSE-RACING 51 Gallons Combo Aluminum Tank
The 51-gallon aluminum combo from BLACKHORSE-RACING integrates a fuel transfer tank with a 10 GPM 12V DC pump and a 13.1-foot hose for rapid refueling. The aluminum construction is described as durable and resistant to rust and corrosion, making it suitable for frequent use and exposure to the elements. A robust foam-filled cover provides a rigid outer shell to prevent warping, which helps preserve the tank’s integrity over time.
This option emphasizes high pump performance and a ready-to-use setup, ideal for contractors and enthusiasts who perform frequent refueling on-site. Ensure compatibility with vehicle frame mounting points and verify the availability of the necessary electrical connections for the pump.
RDS MFG INC Fuel Transfer/Auxiliary Tank/Toolbox With 8 GPM Pump
This model pairs a 60-gallon capacity with an 8 GPM pump, offering an efficient solution for transfer and refueling. It includes heavy-duty aluminum mounting brackets and a spin collar that facilitates easy pump installation. The combination of welded seams and a robust mounting system supports reliable operation in rugged environments and busy service fleets.
Users should check compatibility with their vehicle’s mounting points and confirm the pump’s electrical requirements during installation to ensure smooth operation and maintenance access.
RDS MFG INC Rectangular Auxiliary Fuel Tank – 69 Gallon
The 69-gallon tank extends comfort and range while noting that gasoline fueling is allowed via electric top pumping. It is part of a broader lineup that emphasizes various capacities to fit different work needs. The product dimensions and mounting considerations are highlighted to help determine fitment for specific truck bed lengths and configurations.
For users prioritizing maximum capacity within a compact footprint, this model presents a practical balance between space and fuel reserve, with attention to reliable tank construction and fuel management efficiency.
Rds Aluminum 74551 20 Gal Rectangular Auxiliary Tank
The 20-gallon rectangular auxiliary tank offers a compact option for tighter spaces or lighter-duty applications. Built with heavy-duty aluminum mounting brackets and 100% pressure testing to ensure leak resistance, this unit is designed for durability and straightforward installation. This smaller capacity model is suitable for smaller trucks or fleet vehicles where space is at a premium but an auxiliary fuel supply remains beneficial.
Buying Guide: Key Purchase Considerations
- Capacity vs. space: Choose a tank size that meets fueling needs without obstructing bed clearance or mounting constraints.
- Material and durability: Aluminum tanks are lightweight yet strong; steel may offer different stiffness or corrosion resistance depending on environment.
- Seams and construction: Fully welded seams generally offer better leak resistance and longevity for long-term use.
- Pump and hose specs: Evaluate GPM rating, hose length, and nozzle type to match fueling speed with daily workflow demands.
- Mounting hardware: Check for heavy-duty brackets and compatibility with your vehicle’s frame and mounting points.
- Fuel type compatibility: Ensure the tank supports the intended fuel (gasoline, diesel, etc.) and that any siphon or pump is suited to the fuel stored.
- Integrated toolbox options: If storage for tools is important, consider units that combine a toolbox with the tank for improved organization.
- Installation considerations: Space, headroom, and proximity to exhaust or heat sources should be assessed to avoid safety issues.
- Maintenance access: Look for easy access to pumps, fittings, and clean-out options to simplify routine maintenance.
- Warranty and service: Verify manufacturer warranties and availability of replacement parts for future support.
The selections above represent a cross-section of available auxiliary fuel tanks and toolbox combos designed to support extended range, efficient refueling, and organized cargo spaces for American trucks and fleets. When evaluating options, align tank capacity with vehicle fitment, fuel type, and operational needs to optimize performance and reliability.