transfer flow|SKU:0800115195-var-51074-ce1532

Transfer Flow Fuel Transfer Tank Toolbox Combo — DOT-Legal, 14-Gauge ReliaSteel

Mobile Refueling and Secure Storage in One DOT-Approved Unit

DOT-legal fuel transport — Carry gasoline, diesel, and kerosene legally on the road
6 cubic feet storage — Locking toolbox with gas-filled shocks secures gear and tools
Built-to-spec steel — 14-gauge ReliaSteel aluminized construction with powder-coated finish
Hose purge function — Returns residual fuel from the hose back into the tank
Complete install kit — All mounting hardware and components included for setup
  • Free Shipping -- LTL freight delivery to your location at no extra charge
  • Free Pre-offer Spec Review -- We verify your truck configuration and fuel type before you order
  • Free Documentation Package -- DOT compliance info and installation instructions shipped with every order

Price range: $2,626.00 through $3,360.00

30-day money back · No restocking fee

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Ships in 3–5 Days Heavy-duty crating included.
4.9/5 Stars 2,400+ verified reviews.

In the box

  • Fuel transfer tank (40, 70, or 100 gallon)
  • 6-cu-ft locking toolbox with gas-filled shocks
  • 12-volt GPI fuel transfer pump
  • Complete installation hardware and components
Transfer Flow Fuel Transfer Tank Tool Box Combo with Pump
Transfer Flow Fuel Transfer Tank Toolbox Combo — DOT-Legal, 14-Gauge ReliaSteel
$2,626.00 – $3,360.00Price range: $2,626.00 through $3,360.00

Mobile Refueling and Secure Storage in One DOT-Approved Unit

The Transfer Flow Fuel Transfer Tank Toolbox Combo turns your truck bed into a mobile refueling station with 6 cubic feet of secure gear storage. Built with heavy-gauge 14-gauge ReliaSteel aluminized steel and a durable satin black powder coat, this code-compliant tank is DOT legal to carry and transfer gasoline, diesel, and kerosene. A 12-volt GPI pump and a hose purge function eliminate wasted fuel and mess. Available in 40, 70, and 100-gallon capacities, each unit is built-to-spec with locking paddle handles and gas-filled shocks for reliable daily access on any job site. Ships free.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
DOT Legal for 3 Fuels
6 Cu Ft Locking Toolbox
12V GPI Pump Included
U.S. Aluminized Steel
40, 70, 100 Gal
Available Capacities
6 Cu Ft
Toolbox Storage Volume
14-Gauge
ReliaSteel Construction
Spec'd Right for Your Truck Bed Before It Ships

Spec'd Right for Your Truck Bed Before It Ships

The last thing you need is a transfer tank that doesn't fit your bed rails or fails a DOT roadside inspection because the vendor sold you an unmarked container. Tank Vault runs a pre-offer spec review on every order — we verify your truck configuration, fuel type, and state transport requirements before the tank ships. If your jurisdiction has additional marking or placarding rules for mobile fuel, we flag it. This Transfer Flow combo is DOT-legal for gasoline, diesel, and kerosene, but getting the right capacity for your bed rail height matters. The 40-gallon sits parallel with most bed rails, the 70-gallon goes over-rail, and the 100-gallon uses an L-shaped design. We make sure you order the one that fits.

Heavy-Gauge Steel Built to Handle the Road

Heavy-Gauge Steel Built to Handle the Road

This tank is constructed from 14-gauge ReliaSteel, a high-yield U.S. aluminized steel engineered for field-proven durability in mobile fuel applications. The powder-coated satin black finish resists corrosion, chipping, and weather exposure that degrades lighter-duty containers over time. Combined with the locking paddle handles and gas-filled shocks on the toolbox lid, every component is designed for repeated use on job sites, farm properties, and fleet routes where the tank gets loaded, unloaded, and exposed to the elements daily. This is industrial-grade construction, not a modified storage drum bolted to a truck bed.

Onboard Refueling Without the Mess or Waste

Onboard Refueling Without the Mess or Waste

The included 12-volt GPI fuel transfer pump delivers fuel directly from the tank to your equipment, and the integrated purge function pushes residual fuel from the hose back into the tank after dispensing. That means no fuel left sitting in the line, no drips on the truck bed, and no wasted product. The 6-cubic-foot toolbox with locking paddle handles keeps your tools, chains, and supplies secure and separate from the fuel compartment — so you're not digging through straps and funnels to find a wrench. Everything you need for a full day of field refueling stays in one unit.

Verify Your Bed Configuration

Match your truck bed rails to the correct tank profile before ordering.

  • 40-gallon tank sits parallel with standard bed rail tops
  • 70-gallon tank requires over-the-bed-rail available
  • 100-gallon tank utilizes an L-shaped footprint for lower bed mounting

Built for Field Operations

Designed for professionals who refuel equipment on-site and need secure tool storage.

Agricultural Fueling
Construction Site Fleet
Remote Utility Crews

Full specifications

At a glance

Dimensions
100 Gallon, 40 Gallon, 70 Gallon
Power
12 volt
Surface
14-gauge ReliaSteel, high-yield U.S. aluminized steel
Full specifications9 data points across 4 categories

Dimensions

Size Options100 Gallon, 40 Gallon, 70 Gallon
Toolbox Storage6 cubic feet

Power & Performance

Pump Voltage12 volt
Pump BrandGPI
Purge FunctionMoves remaining fuel from the hose back into the fuel tank

Materials

Tank Material14-gauge ReliaSteel, high-yield U.S. aluminized steel
FinishPowder coated for durable satin black finish
Toolbox HardwareLocking paddle handles and gas-filled shocks

Compliance & Warranty

DOT Legal FuelsGasoline, diesel, and kerosene fuels

The Tank Vault Promise

Every tank we ship is vetted, documented, and backed by straightforward support.

Compliance Documentation IncludedDOT legal specifications provided so your operation stays audit-ready from day one.
Free Freight DeliveryShips free via LTL freight to your job site or yard — call for liftgate or inside delivery options.
30-Day Hassle-Free ReturnsIf it doesn't meet your spec sheet or arrives damaged, we resolve it immediately — uninstalled, original packaging.
★★★★★
“Mounted the 70-gallon on my F-250. Fits over the bed rails clean, pump works solid, and the toolbox holds all my chains and binders. Tank Vault confirmed my bed length and rail height before I ordered — no guessing.”
F
First L.Odessa, TX

The Transfer Flow Fuel Transfer Tank Toolbox Combo comes with a 12 volt GPI fuel transfer pump. The tank has a steel design and is available in 40 gallon, 70 gallon and 100 gallon sizes. The refueling tank and tool box combo is the perfect solution for drivers who want a mobile refueling station onboard with 6 cubic feet to securely store gear and equipment.

The 40 gallon size is designed to be parallel with the top of most bed rails. The 70 gallon size is an over the bed rail design and the 100 gallon size is a combination of an L-shaped transfer tank with a rectangular toolbox that attaches to the lower L portion of the tank.

The refueling tank is Department of Transportation (DOT) legal to carry and transfer gasoline, diesel, and kerosene fuels, and features an easy-to-use purge function that moves remaining fuel from the hose back into the fuel tank. The tool box is equipped with locking paddle handles and gas-filled shocks that make it easy to open and close the tool box lid.

The refueling tank is made from 14-gauge ReliaSteel, high-yield U.S. aluminized steel for superior durability and strength; and powder coated for durable satin black finish. As with all Transfer Flow fuel tank systems, this refueling tank comes complete with all parts needed for installation, down to the last zip tie. 

Sizes:

  • 40 Gallon – 59 inches long x 21 inches wide x 21.625 inches high.
  • 70 Gallon – 73 inches long x 24.5 inches wide x 27.75 inches high.
  • 100 Gallon – 53.75 inches long x 35.875 inches wide x 27.625 inches high.

Fits:

  • 40 Gallon – Long & Short Beds / 215 pounds.
  • 70 Gallon – Long & Short Beds / 293 pounds.
  • 100 Gallon – Long Beds / 329 pounds.

Toolbox:

  • 40 Gallon – 6 cubic feet of storage space.
  • 70 Gallon – 9 cubic feet of storage space.
  • 100 Gallon – 9 cubic feet of storage space.

Fuelpump:

  • 40 Gallon – GPI 12 volt 8 gpm fuel pump.
  • 70 Gallon – GPI 12 volt 8 gpm fuel pump.
  • 100 Gallon – GPI 12 volt 15 gpm fuel pump.

FEATURES

  • Recommended for drivers who own ATVs, boats, generators, landscape or farming equipment, or want the option to fuel their truck or additional vehicles.
  • Comes with 12 volt GPI fuel pump, 12 ft. hose, nozzle, fuel cap, wiring harness with cab-mounted power switch, and mounting hardware.
  • Easy-to-use hose purge feature eliminates messes.
  • Built from 14-gauge ReliaSteel, high-yield U.S. aluminized steel powder coated black for superior durability and strength.
  • Baffled to prevent fuel sloshing.
  • Gas-filled shocks for easy opening and closing.
  • Stainless steel locking paddle handles.
  • 6 year, unlimited mile warranty.
  • Made in the USA.

Other Tank Toolbox Options:

Additional information

Size

100 Gallon, 40 Gallon, 70 Gallon

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Frequently Asked Questions

Yes. The Transfer Flow fuel transfer tank is Department of Transportation legal to carry and transfer gasoline, diesel, and kerosene fuels on public roads. This is not a modified storage container — it's manufactured as a DOT-compliant transfer tank with proper markings and venting. If your state requires additional placarding or registration for mobile fuel transport, contact us before ordering and we'll verify your jurisdiction's requirements.
It depends on your bed rail height and bed length. The 40-gallon tank sits parallel with the top of most bed rails. The 70-gallon is an over-the-bed-rail design. The 100-gallon uses an L-shaped transfer tank with a rectangular toolbox mounted to the lower portion. Send us your truck make, model, bed length, and whether you have a bed liner or toolbox already installed — we'll confirm the right size before you order.
Transfer Flow combos ship via LTL freight. Lead times vary by size and current inventory at the factory. If you have a specific deadline — a seasonal startup, a job site mobilization, or a compliance window — contact us before ordering and we'll check current production and freight schedules. We coordinate delivery to your location and can arrange liftgate service if you don't have a loading dock or forklift on site.
DOT-legal transfer tanks used for mobile refueling typically fall under different regulations than stationary aboveground storage tanks. However, EPA SPCC requirements depend on your total onsite storage volume and how you store fuel at your facility. If this tank is part of a larger fuel storage operation, secondary containment may apply at the fill point or storage location. Tell us your full setup and we'll point you in the right direction — no guessing.
Yes. This Transfer Flow tank is DOT-legal to carry and transfer gasoline, diesel, and kerosene. The 12-volt GPI pump handles all three fuel types. If you plan to switch between gasoline and diesel in the same tank, be aware of cross-contamination risks — even small amounts of gasoline in diesel can cause injector damage. Most operators dedicate one tank to one fuel type. If you need to run both, contact us about a two-tank setup.
Every Transfer Flow combo ships with the manufacturer's documentation, installation instructions, and DOT compliance information. Since this is a DOT-legal mobile transfer tank rather than a stationary UL-listed AST, the documentation package differs from our stationary tank orders. If your operation requires specific paperwork for your fuel handling procedures or insurance, let us know before ordering and we'll confirm what's available from the manufacturer.
Freight damage happens — these are heavy steel units shipping on flatbeds. If your tank arrives with dents, scratches, or compromised welds, contact Tank Vault immediately with photos. We resolve it on our end, not yours. Our 30-day guarantee covers delivery damage on uninstalled units in original packaging. We handle the freight claim directly with the carrier so you're not stuck in a back-and-forth dispute while your job site waits.
SKU: 0800115195 Categories: , , Brand:

The Tank Vault Promise

Every tank we ship is vetted, documented, and backed by straightforward support.

Compliance Documentation Included DOT legal specifications provided so your operation stays audit-ready from day one.
Free Freight Delivery Ships free via LTL freight to your job site or yard — call for liftgate or inside delivery options.
30-Day Hassle-Free Returns If it doesn't meet your spec sheet or arrives damaged, we resolve it immediately — uninstalled, original packaging.

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About transfer flow Fuel Tank Toolbox Combos

transfer flow is a trusted manufacturer of premium fuel tank toolbox combos. TankVault is an authorized dealer offering the full transfer flow lineup with free delivery, price match guarantee, and expert support.

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