Finding the right 70 gallon fuel tank involves balancing capacity, durability, and installation practicality. This guide highlights five solid options from trusted brands, with a focus on 70-gallon capacity or close equivalents that perform well in demanding environments. Whether you need auxiliary fueling for a work truck, a mobile fueling solution for equipment, or a bulk transfer tank for a shop, these picks cover common configurations, materials, and mounting styles to help you choose confidently.
| Product | Capacity | Type | Notes |
|---|---|---|---|
| RDS MFG INC 72117 | 70 gallons | Rectangular metal tank | Solid all-metal construction; large dimensions |
| RDS MFG INC 73956 | 70 gallons | Auxiliary/transfer with toolbox | Includes GPI 12V pump; diamond plate |
| RDS MFG INC Rectangular Auxiliary Fuel Tank | 69 gallons | Auxiliary tank | Versatile sizing; supports electric pump |
| VEVOR Portable Diesel Tank | 58 gallons | Portable transfer tank | Durable polyethylene; compact for mobility |
| TITAN Fuel Tanks 7020217 | 55 gallons | Mid-ship replacement tank | OE-sending unit compatibility; larger than stock |
Table notes: Capacities vary, with several near the 70-gallon target. Material and mounting options differ, so consider your installation space, vehicle fit, and whether you need a built-in pump, toolbox, or portable design for on-the-go fueling.
RDS MFG INC 72117 70-Gallon Tank
The 72117 model presents a robust, all-metal 70-gallon liquid tank designed for durability in demanding environments. Its 48″ L x 13.5″ W x 26″ H dimensions offer substantial capacity while maintaining a manageable footprint for many trucks and equipment mounts. This tank is built to endure heavy use with solid construction and ample volume for extended fueling runs. Its straightforward rectangular form enables easier mounting and alignment in constrained spaces where a conventional cylindrical tank may not fit.
RDS MFG INC 73956 Tank With Toolbox And Pump
This 70-gallon rectangular tank combo includes a GPI 12V fuel transfer pump and a durable toolbox feature. Its 70-gallon capacity makes it suitable for extended fueling needs on work sites or fleets that require on-site refueling without frequent refills. The diamond plate detailing adds a rugged aesthetic and additional protection for the pump area. The package is designed to simplify installation by pairing the tank with a ready-to-use pumping solution, ideal for customers seeking a turnkey transfer setup.
RDS MFG INC Rectangular Auxiliary Fuel Tank
This 69-gallon auxiliary tank from RDS MFG INC offers versatility for various fueling needs. It supports gasoline auxiliary fueling when siphoned from the top via an electric fuel pump. The full assortment range allows matching to different dimensions, ensuring compatibility with diverse vehicle frames and storage spaces. Its dimensions are substantial (57.0″ L x 18.0″ W x 16.0″ H), so plan mounting area accordingly and verify fit before ordering.
RDS MFG INC Fuel Tank – 60-Gallon
This 60-gallon model from RDS MFG INC provides a compact, reliable fueling option that can be a practical choice when space is constrained. The kit supports gasoline auxiliary fueling via top-siphon with an electric pump, making it compatible with typical pickup truck and utility vehicle applications. It emphasizes compatibility with varying bed lengths and mounting styles, so measure space to ensure a proper fit and secure installation.
RDS MFG INC 70387 Auxiliary Fuel Tank 40 Gal
Although smaller at 40 gallons, this auxiliary tank complements the lineup by offering a compact fueling solution when space is limited. It is positioned as an auto accessory with sturdy welded seams for durability. Its small footprint allows flexibility for mounting on vehicles with tight underbody clearance or limited bed space, while still providing reliable auxiliary fueling capacity for shorter trips or portable operations.
TITAN Fuel Tanks 7020217 XXL 55-Gallon
The TITAN 55-gallon replacement tank is a larger capacity option designed to fit Ford F-250/F-350 crew cab short bed configurations. While not 70 gallons, it represents a robust mid-ship mounting approach that preserves OE compatibility and avoids interference with steps or airbags. It is suitable for owners seeking a larger-than-stock fuel tank that maintains factory sensor compatibility and integration with common aftermarket fuel systems.
Buying Guide: Key Purchase Considerations
- Capacity and footprint: Decide whether you need a true 70 gallons or if a close proximity (69, 60, or 58 gallons) meets your fueling demands. Check the tank’s length, width, and height to ensure it fits your vehicle bed, trailer, or chassis space.
- Material and durability: Most options use metal or high-density polyethylene. Metal tanks tend to be more rigid and rugged; polyethylene models offer corrosion resistance and lighter weight.
- Mounting configuration: Consider whether your installation requires a bed-mounted, under-bed, or toolbox-integrated design. Ensure mounting points align with vehicle frame rails or mounting brackets supplied by the manufacturer.
- Pump and accessories: Some tanks include built-in pumps (like the 73956 model) or come as a kit with hoses, filters, and mounting hardware. Decide if you need a turnkey solution or a tank to pair with your own pumps and hoses.
- Ventilation and safety: Verify venting options and safety features, especially for long runs and portable operations. Lockable lids improve theft resistance on portable tanks.
- Fuel compatibility: Confirm compatibility with gasoline and diesel if you anticipate handling both fuels. Electric pumps should be matched to the tank’s fittings and power requirements.
- Accessories and compatibility: Check whether the tank fits your vehicle’s OE sending unit or requires adapters. For replacement tanks, ensure the mounting pattern aligns with your vehicle’s configuration.
- Transport and mobility: Portable transfer tanks are ideal for on-demand fueling away from fixed stations but weigh when full. Consider handling, storage, and transport constraints on-site.
In selecting a 70-gallon option, prioritize a balance of capacity, fit, and installation practicality. For fleets requiring built-in pumping or tool storage, models like the 73956 offer ready-to-use solutions. If you need a simple, rugged tank with robust dimensions, the 72117 provides solid metal construction. For flexible mounting and mid-range capacity, other variants offer useful alternatives that still approach the target size.