The best split fuel transfer tank depends on the capacity, tank shape, and fuel types your truck and work require. The Transfer Flow 50/50-gallon tank suits buyers seeking two equal compartments; the Tank Industries TTL95S offers two 47-gallon divisions in an L-shaped design; and the TTR72S lists baffles and a lockable vented cap. Compare the listed product details below, and verify fit, fuel compatibility, and applicable requirements before buying.
| Product | Listed capacity or design | Best suited for |
|---|---|---|
| Transfer Flow 0800113244 | 50/50-gallon split | Two equal fuel compartments |
| Tank Industries TTL85S | 85-gallon listing; 42 gallons per side | Buyers comparing a two-compartment tank |
| Tank Industries TTL95S | 95 gallons; two 47-gallon divisions | Toolbox and fifth-wheel layout needs |
| ATI TTR72S | 72-gallon rectangle | Buyers prioritizing listed baffles and cap |
| ATI TTR110S | 110-gallon split rectangle; DOT approved per name | Higher listed capacity |
Transfer Flow 50/50-Gallon Split Tank

This Transfer Flow tank is listed as a 50/50-gallon split refueling tank. Its two equal compartments make it a candidate for buyers who want separate, similarly sized fuel reserves rather than one larger compartment and one smaller one.
The supplied package details are 54 inches long, 43 inches wide, and 32 inches high, with a listed package weight of 332 pounds. Those figures are useful for initial planning, but shoppers should confirm the product’s actual fit and installation requirements with the seller or manufacturer.
Best for: Buyers who specifically want two equal 50-gallon sections. Limitation: The provided details do not identify fuel compatibility, pump equipment, or installation hardware, so confirm those points before purchase.
Tank Industries TTL85S Split Transfer Tank

The product name describes this as a DOT 85-gallon split transfer tank with 42 gallons per side. That makes it relevant to buyers looking for two separate fuel compartments and a listed capacity close to the 85-gallon range.
There is a small capacity detail to verify: the product name lists 85 gallons overall, while its two stated 42-gallon divisions add up to 84 gallons. Check the manufacturer’s or seller’s specifications to clarify nominal capacity and usable capacity before comparing it with another tank.
Best for: Buyers comparing split tanks with two similarly sized compartments. Limitation: The supplied information does not give dimensions, construction material, or fuel compatibility, so fit and intended use require confirmation.
Tank Industries TTL95S L-Shaped Tank

The TTL95S is listed as a 95-gallon aluminum tank divided into two 47-gallon sections. Its L-shaped design is intended to allow mounting of most crossover-style toolboxes and chests, and the listing describes it as suitable for most fifth-wheel applications.
Best for: Buyers who need two separate fuel divisions and want an L-shaped tank layout that can work with many crossover toolboxes or fifth-wheel setups. Aluminum construction is also a stated feature.
Limitation: “Most” does not mean every toolbox or fifth-wheel configuration. Measure the truck bed and check clearances; the product information does not establish fit for a specific vehicle.
ATI TTR72S Rectangle Split Tank

This 72-gallon rectangle split refueling tank is listed with fully welded baffles to reduce movement of its contents. Its product details state that it is legal for gasoline, diesel, methanol, kerosene, aviation fuel, and other liquids. The listing also specifies a commercial-grade lockable vent/prevent filler cap.
Best for: Buyers who value the stated baffle construction, listed fuel options, and lockable vent/prevent filler cap. The range of named fuels may help shoppers narrow their options, but verify that the specific liquid and application meet current requirements.
Limitation: The supplied details do not state the capacity of each compartment, tank dimensions, or whether a pump is included. Confirm these details for your setup.
ATI TTR110S 110-Gallon Split Tank

The product name describes the TTR110S as a 110-gallon split rectangle refueling tank made from diamond-plate aluminum and marked DOT approved. Its listed capacity is the highest among the five options here, making it worth considering when a larger stated capacity is a priority.
Best for: Buyers comparing higher-capacity split tanks with a rectangular form and stated diamond-plate aluminum construction. The product name also identifies DOT approval, a detail buyers can verify against their specific use and requirements.
Limitation: The provided details do not specify the division between compartments, dimensions, fuel types, or included equipment. Confirm those specifications rather than assuming they match another tank in the same product family.
Buying Guide: How to Choose a Split Fuel Transfer Tank
How much capacity do you need in each compartment?
Compare both total and divided capacity. A 50/50 tank offers equal sections, while the TTL95S lists two 47-gallon divisions. Check the TTL85S’s stated figures carefully because its 85-gallon name and 42-gallon-per-side description do not add up to the same total. Decide whether equal compartments or a particular total matters more.
Will the tank fit your truck bed and toolbox?
Compare product dimensions with available bed space, tie-downs, cab clearance, and any toolbox or fifth-wheel equipment. The TTL95S is specifically described as L-shaped and intended to accommodate most crossover-style toolboxes and chests. Still, measure your own configuration; general fit language cannot confirm vehicle-specific compatibility.
Which fuel and safety details should you verify?
Check the listed fuel compatibility for the liquid you intend to carry. The TTR72S names several fuel types, while the other supplied details are less specific. Confirm applicable transport and installation requirements with the manufacturer and relevant authorities. Do not infer that a tank is suitable for a fuel or use simply because it is split or made from aluminum.
Are a pump, dimensions, and accessories included?
Do not assume a transfer pump, hoses, mounting hardware, or other accessories are included unless the listing says so. Compare package contents and installation instructions before ordering. When dimensions are missing from the supplied product details, request them to check vehicle fit and plan handling safely.
Frequently Asked Questions
What is a split fuel transfer tank?
It is a tank divided into separate compartments. The products listed here describe divisions for carrying distinct fuels, but confirm the intended use and compatibility for the specific tank.
Which listed tank has two equal 50-gallon compartments?
The Transfer Flow 0800113244 is listed as a 50/50-gallon split refueling tank.
Which option lists an L-shaped design?
The Tank Industries TTL95S is described as an L-shaped 95-gallon tank with two 47-gallon divisions.
Does a split tank automatically include a transfer pump?
No. The supplied details do not confirm that a pump is included with these products. Check each complete listing before purchase.