For pickup owners seeking extra fuel capacity without adding height, low profile tanks offer a practical solution. The following five selections emphasize compact footprints, rugged construction, and easy compatibility with truck bed setups. Each option provides distinct capacities and configurations to fit varied hauling needs while maintaining a low profile for safe, unobstructed bed use.
| Product | Capacity | Notes |
|---|---|---|
| RDS MFG INC 72771 Fuel Tank | Unknown (aluminum, exterior-friendly) | Locking fill cap; rust-free aluminum; exterior use |
| RDS MFG INC Rectangular Auxiliary Fuel Tank – 69 Gallon | 69 gallons | Large auxiliary option; top-fed siphon possible with electric pump |
| RDS MFG INC 71789 Rectangular Auxiliary/Transfer Combo Fuel Tank | 51 gallons | Combination tank and tool setup; gasoline fueling via top siphon |
| TRQ Gas Fuel Tank 16 gal | 16 gallons | Direct-fit OE replacement for select GM pickups |
| Scepter 08669 Rectangular 12 Gallon Low Profile Marine Tank | 12 gallons | Low-profile marine tank with rugged shell; easy transport handles |
The list focuses on tanks that maintain a slim silhouette suitable for truck beds, while offering varied capacities and installation options. The selections prioritize aluminum or rugged plastics, top-fed siphon compatibility, and configurations that minimize height without compromising capacity.
RDS MFG INC 72771 Fuel Tank
This aluminum tank is designed for exterior use and includes a locking automotive-style fill cap. The aluminum construction resists rust, which is advantageous for exterior installations on trucks with exposure to weather. The combination of a secure fill and corrosion resistance supports long-term durability in bed-mounted applications.
RDS MFG INC Rectangular Auxiliary Fuel Tank – 69 Gallon
With a large 69-gallon capacity, this rectangular auxiliary tank provides extended fuel range. RDS offers a broad lineup of tanks to fit varying bed dimensions, and the top-fed design accommodates electric pumps for siphoning, enabling versatile fueling options in a truck bed setup.
RDS MFG INC 71789 Rectangular Auxiliary/Transfer Combo Fuel Tank
This 51-gallon combo tank supports auxiliary fueling and transfer functionality. It emphasizes a practical approach to fueling needs with a top-siphon capability for gasoline using an electric pump, making it suitable for builders who require both storage and transfer capabilities in a single unit.
RDS MFG INC Fuel Tank – 60-Gallon
With a 60-gallon capacity, this tank supports extended usage while maintaining a relatively manageable footprint. The fuel-siphon capability via an electric pump adds convenience for on-site fueling needs, and the design is intended for compatibility with a range of bed configurations. Please verify fitment for your specific truck model and bed length before ordering.
Scepter 08669 Rectangular 12 Gallon Low Profile Tank
This 12-gallon marine tank is designed with a low profile suitable for tighter spaces and boats. Its rugged one-piece shell minimizes fuel evaporation and preserves octane value, while integrated handles aid transportation—beneficial for mobile fuel applications in compact setups, including some bed configurations when space is constrained.
Buying Guide
- Capacity vs. space: Higher gallonage provides longer operation but increases bed height; measure your truck bed clearance to ensure compatibility with your tailgate and rear hitch area.
- Material and corrosion resistance: Aluminum tanks resist rust and are suitable for exterior exposure, while high-strength plastics reduce weight and may lower overall bed weight.
- Fuel type and top-siphon capability: Confirm whether the tank is designed for gasoline and if it supports electric fuel pumps for siphoning, which affects installation requirements.
- Installation considerations: Check mounting brackets, clearance from exhaust components, and compatibility with existing bed rails or toolboxes. Some models are designed for direct-fit applications; others require customization.
- Safety and locking features: A locking fill cap or secure access reduces theft risk and helps maintain fuel integrity in exposed or mobile environments.
- System integration: If using transfer or auxiliary options, verify fluid routing, venting, and pump compatibility to avoid vapor lock or backflow.
- Weight distribution: A heavy tank alters vehicle handling; plan for proper support and weight distribution across the truck bed to maintain stability and safety.
- Maintenance: Look for tanks with accessible fill caps and corrosion-resistant materials to facilitate cleaning and long-term upkeep.
Choosing a low profile fuel tank for a truck bed requires balancing capacity, installation feasibility, and environmental exposure. The options listed here prioritize slim profiles, ease of mounting, and durability to meet common bed-mounted fueling needs while maintaining safe clearance and load considerations.