Best 90 Gallon Fuel Tanks for Trucks and Trailers

Finding the right 90 gallon fuel tank means balancing capacity, durability, and compatibility with your vehicle setup. This guide highlights five top options and explains who each is best for, plus practical buying considerations. Ideal buyers include fleet operators needing reliable auxiliary fueling, off-road enthusiasts with limited space, and contractors who frequently refill fuel on-site. The quick comparison table below helps you scan key specs at a glance.

Product Capacity Material Best For Key Benefit
RDS MFG INC 72118 Vertical Transfer Fuel Tank 90 Gallon Aluminum Small to mid-sized trucks needing rust resistance Top siphon capability with electric pump
Weather Guard Transfer Tank L-Shape 90Gal 90 Gallon Alloy Steel Full-size trucks with Gull Wing or Saddle Boxes Stable L-shape design with interior baffles
RDS MFG INC 73200PC 90 Gal Tp Fuel Tank 90 Gallon Black Powder Coat Durable, compact 90 gal transfer tank Simple package with essential components
RDS MFG INC 71791 Rectangular Transfer Liquid Tank 91 Gallon Steel General-purpose transfer tank for trucks No pump included; straightforward hydration
RDS MFG INC a 90-Gal Comb Tank with Pump 90 Gallon Steel/Aluminum options On-site fueling with integrated pump Includes pump option for faster transfers

RDS MFG INC 72118 Vertical Transfer Fuel Tank

RDS MFG INC 72118 Vertical Transfer Fuel Tank image

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Capacity is 90 gallons with a vertical aluminum design chosen for rust resistance and compact footprint. Best for buyers needing a lightweight, corrosion-resistant tank that can be siphoned from the top using an electric fuel pump. The unit is suited for smaller service fleets or off-road rigs where weight reduction matters. A potential limitation is that aluminum tanks can be more expensive and may require careful maintenance to prevent aluminum fatigue over long-term use.

Who it’s best for

Small to mid-size trucks or trailers that prioritize rust resistance and lightweight construction. Ideal for on-site refueling where space savings matter and a top-siphoning setup is feasible.

Why selected

This tank provides a robust aluminum build with top-siphon pumping, enabling easy fueling from the top while reducing slosh risks when mounted in compact spaces.

Caution

Ensure proper mounting hardware and brackets are used to support the aluminum tank on your frame; improper mounting can lead to vibration and wear.

Weather Guard Transfer Tank L-Shape 90Gal

Weather Guard L-Shape 90Gal Tank image

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Constructed from heavy-duty 12-gauge alloy steel, this 90-gallon tank is designed for durability in harsh work environments. The L-shape design fits full-size trucks with Gull Wing or Saddle Boxes, making it a practical choice for fleets that need to preserve underbody clearance and maximize cargo area. Interior baffles help minimize fuel movement, increasing safety during transport. A potential limitation is the heavier weight of steel compared with aluminum, which can impact mounting requirements and overall vehicle payload.

Who it’s best for

Operators with full-size trucks that require stable fuel transfer and extra space for other payloads, especially where Gull Wing or Saddle Boxes are present.

Why selected

The combination of a 90-gallon capacity with baffle-protected fuel flow reduces slosh, enhancing handling and safety during highway and rough-terrain use.

Caution

Weight and mounting considerations are important; steel tanks add heft and may require reinforced mounting brackets.

RDS MFG INC 73200PC 90 Gal Tp Fuel Tank

RDS MFG INC 73200PC 90 Gal Tp Fuel Tank image

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This 90-gallon transfer tank features a powder-coated black finish for corrosion resistance and a straightforward form factor. It is compatible with gasoline auxiliary fueling when siphoned from the top using an electric fuel pump. The unit emphasizes simple installation and compact dimensions, making it suitable for trucks needing a reliable 90-gallon solution without extra frills. A caveat is that the listed data emphasizes basic features; advanced fittings or pumps may require separate purchase or customization.

Who it’s best for

Fleet operators needing a durable, simple transfer tank with a clean finish and easy top-fuel siphoning capability.

Why selected

The 90-gallon capacity combined with powder-coated steel ensures durability in rugged service, while maintaining a compact profile for tighter mounting spaces.

Caution

Verify compatibility with existing mounting hardware and dimensions to avoid fitment issues on your vehicle model.

RDS MFG INC 71791 Rectangular Transfer Liquid Tank

RDS MFG INC 71791 Rectangular Tank image

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This 91-gallon rectangular tank focuses on flexible mounting options for various truck configurations. It supports gasoline auxiliary fueling when siphoned from the top with an electric pump. The product is sold as a tank-only unit, without a pickup tube, pump, hose, or nozzle, which makes it suitable for buyers who already own a preferred fueling setup. A limitation is that installation requires separate components to complete a full fueling system.

Who it’s best for

Owners who want a larger-capacity tank and already have a compatible fueling system or plan to customize with their preferred pump and hoses.

Why selected

The 91-gallon capacity is within the target range, offering practical space for on-trail or on-job-site fueling while keeping a straightforward design.

RDS MFG INC RDS Fuel Transfer/Auxiliary Tank with 15 Gpm Pump

RDS MFG INC 90-Gallon fuel transfer with pump image

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This 90-gallon tank is paired with a 15 GPM pump in a toolbox-style combo for efficient on-site fueling. It is designed as a ready-to-use auto accessory that includes a combination of tank, pump, and related hardware components. Best for operations that require a complete, ready-to-deploy fueling solution. Consideration: ensure the pump is compatible with your fuel type and that mounting provisions fit your vehicle or work truck chassis.

Who it’s best for

Users seeking a comprehensive transfer-and-pump solution that speeds fueling at the worksite or on the road.

Why selected

The integrated pump option reduces setup time and supports faster turnarounds on jobs that demand frequent refueling.

Buying Guide: 90 Gallon Fuel Tank Essentials

Capacity, mounting, and material top the list of practical considerations. Aluminum tanks are lighter and resist corrosion but can cost more. Steel tanks offer durability and easier mounting but are heavier and heavier on payload. Consider truck or trailer dimensions, available mounting space, and whether you need a simple tank or a complete fueling system.

What mounting options matter?

Look for tanks with compatible mounting brackets, non-slip surfaces, and secure welds. Space constraints and frame design determine whether a vertical, horizontal, or L-shaped tank is best.

Do you need an inline pump or top-siphon capability?

Top-siphon capability with an electric pump allows convenient fueling from the tank’s top, reducing the need for external connections. Inline pumps speed transfer and are essential for on-site refueling operations.

What about safety features?

Interior baffles help reduce fuel slosh and improve stability. Corrosion protection and venting are important to prevent leaks and maintain performance over time.

What materials fit different environments?

Aluminum suits lighter-duty or transport-heavy applications with moisture exposure, while steel suits rugged environments where impacts and heavy use are common. Powder coatings add extra protection against corrosion.

Frequently Asked Questions

  1. What is a 90 gallon fuel tank best used for? Auxiliary fueling on trucks and trailers, especially when off-site refueling is frequent or space for a full-size fuel station is unavailable.
  2. Is aluminum better than steel for these tanks? Aluminum is lighter and corrosion-resistant; steel is typically more durable and easier to mount in some setups. Choice depends on weight limits and environmental exposure.
  3. Do these tanks come with pumps? Some models include pumps or pump-ready configurations; others are tank-only and require separate components.
  4. Can I mount a 90 gallon tank on any truck? Mounting compatibility depends on frame rails, clearance, and available mounting brackets. Verify dimensions and fit before purchase.
  5. What maintenance is needed? Regular checks for leaks, corrosion protection, and pump integrity; ensure venting and fittings remain secure.
  6. How do interior baffles affect fuel transfer? Baffles reduce fuel movement during transport, improving handling and reducing spill risk.