Finding a reliable external fuel tank for a pickup truck requires evaluating capacity, durability, compatibility, and installation ease. The following picks showcase a range of capacities and materials to suit different towing, hauling, or off-road needs. This guide highlights five prominent options, with objective notes on construction and fitment to help readers compare at a glance.
Summary of Selected Products
| Product | Brand | Capacity | Material | Notes |
|---|---|---|---|---|
| Better Built 36-Gallon Transfer Tank | Better Built | 36 gallons | Steel | Overfill shutoff; built-in baffles |
| RDS MFG 45-Gallon Rectangular Tank | RDS MFG INC | 45 gallons | Steel | Fully welded seams; top-fed electric pump option |
| RDS MFG 60-Gallon Tank | RDS MFG INC | 60 gallons | Steel | Fits specific bed sizes; top-siphon pump option |
| Landrol 58-Gallon Aluminum Tank | Landrol | 58 gallons | Aluminum | Large capacity; corrosion resistance; easy to clean |
| RDS 69-Gallon Rectangular Tank | RDS MFG INC | 69 gallons | Steel | Top-fed siphon capable; robust design |
Better Built 36-Gallon Transfer Tank
The Better Built 36-Gallon steel transfer tank offers substantial capacity in a rectangular form suitable for pickup bed mounting. Its 36-gallon capacity supports extended driving or work-site fueling. The tank includes an automatic shutoff at the pump when overfill is detected, reducing spill risk during refueling, and integrated baffles help stabilize contents during transport, minimizing movement and sloshing. The steel construction emphasizes durability for rugged environments, making it a practical choice for fleets or off-road use where reliability matters.
RDS MFG INC 45-Gallon Rectangular Tank
The 45-gallon rectangular auxiliary tank from RDS MFG INC blends capacity with flexible fuel-fueling options. It supports top-siphon electric pumps for gasoline fueling and features fully welded seams to enhance durability under demanding conditions. RDS offers a range of tanks to accommodate different pickup bed layouts, making this a solid mid-range option for budget-conscious buyers seeking dependable construction.
RDS MFG INC 60-Gallon Tank
The 60-gallon RDS MFG INC tank provides a larger capacity option for longer trips and heavy-duty use. It accommodates a variety of bed measurements, and like other RDS tanks, supports gasoline fueling via top-siphon electric pumps. The fully welded construction contributes to longevity, making this model suitable for work trucks and extended-haul applications where capacity is a priority.
AM Autoparts 20-Gallon Tank
The AM Autoparts 20-gallon option is a direct-fit replacement compatible with certain Chevy and GMC models. This smaller capacity tank is designed for straightforward installation with pre-assembled components, offering ease of installation and precise fitment to minimize modification. It serves as a pragmatic choice when a truck owner prioritizes a simple, direct swap rather than maximal capacity.
Landrol 58 Gallon Aluminum Tank
Landrol’s 58-gallon aluminum tank emphasizes high capacity in a lightweight, corrosion-resistant package. Aluminum construction is advantageous in aggressive environments and reduces the overall weight impact on the vehicle. The dimensions—approximately 59″ L x 13″ W x 17″ H—make it suitable for a variety of pickup bed layouts, offering a broader compatibility window for different trucks.
RDS MFG INC 69-Gallon Rectangular Tank
The 69-gallon tank from RDS MFG INC delivers the largest capacity among the listed options, allowing for extended fueling capability on longer trips or jobsites. It features a robust rectangular design with top-fed fueling compatibility, suitable for pickup trucks that require substantial fuel storage between refueling stops. The kit emphasizes a durable build intended for heavy use and reliable performance under demanding conditions.
RDS MFG INC 51-Gallon Combo Tank
This 51-gallon combo tank from RDS MFG INC blends fuel storage with a built-in utility component set aimed at transport or fleet use. The product line notes emphasize that gasoline fueling is allowed via an electric pump, and it is categorized as a motor engine fuel tank, signaling a broader approach to on-vehicle fueling needs. It is a practical mid-to-large capacity choice for versatile truck applications.
Buying Guide: Key Considerations for External Fuel Tanks
- Capacity needs: Choose a tank size that aligns with typical trip lengths, refueling intervals, and worksite requirements. Higher capacity reduces frequent stops but adds weight and installation considerations.
- Material and durability: Steel tanks tend to be highly durable, while aluminum tanks offer lighter weight and corrosion resistance. Consider exposure to environment, road debris, and transport conditions.
- Mounting compatibility: Verify bed width, tailgate clearance, and mounting hardware compatibility with the selected pickup model. Some tanks specify fitment to certain bed sizes or vehicle brands.
- Fueling method: Top-fed electric pumps are common for gasoline fueling; ensure the pump type matches your fueling workflow and electrical setup on the truck.
- Seam construction: Fully welded seams generally provide robust durability and leak resistance compared to crimped or mechanically joined seams.
- Overfill protection: Automatic shutoff features can prevent spills during refueling, protecting the vehicle and environment.
- Maintenance and cleaning: Aluminum tanks may be easier to clean and resist corrosion; consider accessibility for routine inspection and cleaning.
- Installation effort: Some tanks come with pre-assembled components; others may require additional fittings or modifications. Weigh installation time against ongoing fuel needs.
- Warranty and support: Check manufacturer warranties and available support for installation, parts, and replacement components.