atta tank|SKU:AT110RSL-var-57598-cc4322

ATTA 110-Gallon Sleeper Diesel Auxiliary Fuel Tank

110-Gallon Diesel Capacity Beneath Your Sleeper Cab

Engineered for the long haul, the ATTA Sleeper Diesel Auxiliary Fuel Tank delivers a commanding 110-gallon capacity to dramatically extend your range between refueling stops. Crafted from rugged .125 gauge aluminum with full baffling, it provides a seamless, premium solution for serious diesel truck owners. Elevate your overlanding or hauling capabilities with this robust, purpose-built auxiliary system.

110 gallons extra range — Extends driving distance between fuel stops
Heavy-gauge aluminum build — .125 gauge aluminum resists corrosion and fatigue
Fully baffled construction — Controls fuel surge during acceleration and braking
Sleeper-mount available design — Fits under sleeper with 17.5 inches minimum height
Recessed sending unit — Protected sender with driver's side rear fuel fill
  • FREE Freight -- LTL delivery to your site at no extra cost
  • FREE Pre-offer Spec Review -- We verify fitment and fuel system before you order
  • 30-Day Hassle-Free Returns -- Uninstalled, original packaging — no runaround

$1,872.00

30-day money back · No restocking fee

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In the box

  • ATTA AT110RSL 110-gallon aluminum auxiliary fuel tank
  • Driver's side rear fuel fill box
  • Recessed sending unit
ATTA Sleeper Diesel Auxiliary Fuel Tank
ATTA 110-Gallon Sleeper Diesel Auxiliary Fuel Tank
$1,872.00

110-Gallon Diesel Capacity Beneath Your Sleeper Cab

The ATTA Sleeper Diesel Auxiliary Fuel Tank adds 110 gallons of diesel capacity beneath your truck bed-mounted sleeper. Built from heavy-gauge .125 aluminum and fully baffled to control fuel surge, this tank is built-to-spec for long bed (8 foot) Ford, Dodge, and GM/Chevrolet diesel trucks. The AT110RSL features a recessed sending unit and a driver's side rear fuel fill box for clean installation. Note: You must select the Freedom Fill Fuel System or Push N Fuel System at checkout. Ships free.

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Made in USA Aluminum
Fully Baffled Design
Recessed Sending Unit
Sleeper Cab Mount
110 Gal
Total Capacity
17" × 29" × 60"
Dimensions (H × W × L)
.125"
Aluminum Gauge
Spec'd Correctly Before It Ships

Spec'd Correctly Before It Ships

Ordering an auxiliary tank that doesn't clear your sleeper or ships with the wrong fuel system costs you weeks of downtime and a freight return claim. Tank Vault eliminates that risk. We verify your truck configuration, sleeper available, and fuel system compatibility before the order ships — so your tank arrives spec'd correctly the first time. Choose between the Freedom Fill Fuel System or Push N Fuel System at checkout. If you select Freedom Fill, we confirm your vehicle make and model year so the system is programmed correctly for your truck. No guessing, no returns.

Fuel Surge Control for Long-Haul Stability

Fuel Surge Control for Long-Haul Stability

The AT110RSL is fully baffled to control fuel movement during acceleration, braking, and cornering. At 110 gallons, uncontrolled fuel surge destabilizes your truck and creates unsafe handling conditions on highways and job sites. The internal baffles manage that weight shift without restricting fill or drain rates. Combined with the .125 gauge aluminum construction, this tank is built to handle the vibration, road shock, and thermal cycling that long-haul diesel operations demand. The rectangular profile maximizes capacity while fitting within the 17-inch height constraint required for under-sleeper mounting on long-bed Ford, Dodge, and GM/Chevy diesel platforms.

Protected Hardware, Field-Proven Layout

Protected Hardware, Field-Proven Layout

The recessed sending unit and driver's side rear fuel fill box are positioned to protect critical hardware from road debris, weather exposure, and contact damage during loading or sleeper access. The driver's side rear placement keeps the fill point accessible without requiring you to climb onto the bed or reach across the tank. This layout is field-proven across commercial fleet applications where uptime matters and component replacement downtime is unacceptable. The .125 gauge aluminum construction resists corrosion in diesel service environments, giving you a tank that holds up to repeated fill cycles, temperature extremes, and the daily demands of commercial truck operations.

Compatibility Check

Verify these measurements before ordering to confirm proper fitment under your sleeper cab.

  • Minimum 17.5 inches of vertical available under truck sleeper
  • Long bed (8 foot) truck bed configuration
  • Ford, Dodge, or GM/Chevrolet diesel truck application

Built For

Engineered for diesel operators who need extended range without sacrificing bed space.

Long-haul highway routes
Remote job site fueling
Sleeper cab fleet operations

Full specifications

At a glance

Dimensions
29 inches
Surface
.125 gauge aluminum
Warranty
See product page
Full specifications10 data points across 4 categories

Dimensions

Height17 inches
Width29 inches
Length60 inches
Capacity110 Gallons

Power & Performance

Fuel FillDriver's side rear fuel fill box
Sending UnitRecessed sending unit
Required Fuel SystemFreedom Fill Fuel System or Push N Fuel System

Materials

Material.125 gauge aluminum
BafflingFully baffled

Compliance & Warranty

WarrantySee product page

The Tank Vault Promise

Every tank we sell is vetted for build quality and real-world performance. Here's what you can count on.

Free ShippingLTL freight delivery to your location — ships free on every order, no minimums.
30-Day ReturnsUninstalled, original packaging — if it doesn't meet your spec sheet or arrives damaged, we resolve it immediately.
Pre-offer Spec ReviewWe verify your vehicle application and fuel system compatibility before you order. Contact us before purchasing.
★★★★★
“Mounted the AT110RSL under the sleeper on our 2020 F-350 long bed. Had exactly 18 inches of available so it fit without modification. Went with the Freedom Fill system and it transfers fuel automatically — no more stopping every 300 miles. The baffled design makes a noticeable difference on the highway, no slosh. Tank Vault confirmed my truck specs and fuel system choice before I ordered. That's how it should work.”
F
First L.Odessa, TX

Maximize Your Range with the ATTA 110-Gallon Sleeper Diesel Auxiliary Fuel Tank

For the serious diesel truck owner who demands extended range without sacrificing valuable bed space, the ATTA Sleeper Diesel Auxiliary Fuel Tank is the ultimate solution. Precision-engineered to mount securely underneath a truck bed-mounted sleeper, this 110-gallon capacity tank transforms your long-haul capability. Constructed from durable .125 gauge aluminum and fully baffled for stability, the AT110RSL model offers a seamless, integrated fuel solution designed specifically for long bed (8-foot) Ford, Dodge, and GM/Chevrolet diesel trucks. Experience the freedom of the open road with fewer stops and more confidence.

Key Features

  • Massive 110-Gallon Capacity: Drastically extend your driving range, reducing fuel stops on long hauls or remote job sites.
  • Premium .125 Gauge Aluminum Construction: Built from lightweight, corrosion-resistant aluminum for long-lasting durability without adding excessive weight.
  • Fully Baffled Design: Internal baffles minimize fuel slosh, improving vehicle stability and handling during transit.
  • Recessed Sending Unit (AT110RSL): Features a recessed sending unit for a lower profile and added protection, paired with a driver’s side rear fuel fill box for convenient access.
  • Locking Fuel Cap: Includes a single fill neck on the driver’s side with a locking fuel cap for security and peace of mind.
  • Precision Fitment: Specifically designed for long bed (8-foot) Ford, Dodge, and GM/Chevrolet diesel trucks.

Specifications

  • Model: AT110RSL
  • Capacity: 110 Gallons
  • Material: .125 Gauge Aluminum (Fully Baffled)
  • Dimensions: 17 inches Tall x 29 inches Wide x 60 inches Long
  • Fill Neck: Single Fill Neck / Driver’s Side with Locking Fuel Cap
  • Fuel Type: Diesel Fuel Only
  • Compatible Bed Types: Long Bed (8 ft) – Ford, Dodge, and GM/Chevrolet
  • Clearance Requirement: Must have at least 17.5 inches of clearance under the truck sleeper.
  • Note on Width: Add 1.5 inches (front & rear) to the tank width for the hold-down tabs.

Why Choose the ATTA Sleeper Diesel Auxiliary Fuel Tank

When you invest in an ATTA tank, you are choosing American-engineered reliability designed by Aluminum Tank & Tank Accessories, Inc. This isn’t just a fuel tank; it is a precision system built to integrate flawlessly with your diesel truck. The rectangular, low-profile design maximizes capacity while fitting neatly beneath your sleeper, keeping your truck bed completely free for tools, gear, or cargo.

To complete your installation, you must choose between two industry-leading fuel transfer systems at checkout:

  • Freedom Fill Auxiliary System: The most popular choice. This computerized system automatically transfers fuel from the auxiliary tank to your factory tank when it reaches approximately 1/2 tank, refilling it to about 3/4 tank. It is fully automatic for peace of mind and will not activate when the auxiliary tank is empty. (Requires vehicle make and model year selection for proper programming).
  • Push N Fuel Auxiliary System: An economical, manual alternative. This system uses a dash-mounted momentary rocker switch to activate a heavy-duty rotary vane pump. Simply push and hold the switch to transfer fuel; release it to stop.

Important: You are required to select either the Freedom Fill Fuel System or the Push N Fuel System when purchasing this auxiliary tank. Upgrade your rig with the ATTA Sleeper Tank and conquer the miles ahead.

Price: $1,872.00

Additional information

Size

110 Gallon

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Frequently Asked Questions

The ATTA Sleeper Diesel Auxiliary Fuel Tank ships as a complete unit, but you must select either the Freedom Fill or Push N Fuel system at checkout. Assembly involves installing the tank under a truck bed sleeper, connecting the chosen fuel system, and wiring the pump module or switch. Professional installation is recommended due to the complexity of fuel system integration.
This 110-gallon tank is designed for long bed (8-foot) Ford, Dodge, and GM/Chevrolet diesel trucks. You must have at least 17.5 inches of clearance under the truck sleeper. The tank dimensions are 17 inches tall, 29 inches wide, and 60 inches long, with an additional 1.5 inches on each side for hold-down tabs.
The Freedom Fill system uses a computerized module that activates a fuel pump automatically, drawing power from the truck's electrical system. The Push N Fuel system uses a dash-mounted rocker switch to power a rotary vane pump. Both require a 12V DC connection; no separate battery is needed, but proper wiring to the truck's battery is essential.
The tank is constructed from .125 gauge aluminum, which is lightweight yet strong, and fully baffled to reduce fuel sloshing. The aluminum construction resists corrosion and is suitable for diesel fuel. The tank includes a single fill neck with a locking fuel cap on the driver's side.
Regularly inspect the tank for leaks, cracks, or damage, and ensure all connections are tight. For the Freedom Fill system, check the pump and module wiring periodically. For the Push N Fuel system, test the rocker switch and pump operation. Use only diesel fuel and keep the tank clean to prevent contamination.
Returns are subject to the store's standard policy; contact customer support for authorization. The product data does not specify warranty terms or shipping promises. Support can assist with compatibility questions and installation guidance, but professional installation is recommended for proper setup.
This tank is ideal for diesel truck owners with long bed (8-foot) Ford, Dodge, or GM/Chevrolet trucks who need extended fuel capacity for long hauls or towing. It is specifically for use under a truck bed mounted sleeper with at least 17.5 inches of clearance. It is not suitable for gasoline engines or short bed trucks.
SKU: AT110RSL Categories: , , Brand:

The Tank Vault Promise

Every tank we sell is vetted for build quality and real-world performance. Here's what you can count on.

Free Shipping LTL freight delivery to your location — ships free on every order, no minimums.
30-Day Returns Uninstalled, original packaging — if it doesn't meet your spec sheet or arrives damaged, we resolve it immediately.
Pre-offer Spec Review We verify your vehicle application and fuel system compatibility before you order. Contact us before purchasing.

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atta tank is a trusted manufacturer of premium diesel transfer tanks. TankVault is an authorized dealer offering the full atta tank lineup with free delivery, price match guarantee, and expert support.

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