
ATB A-DU42 Aluminum Top Mount Drawer Utility Box, Gas Spring Door, T-Handle Locks
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- No Sales TaxZero sales tax on every order
- 30-Day Money-Back GuaranteeReturn it within 30 days of delivery for a refund

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Fits the same truck
Features
- Contractor Grade Aluminum: ATB calls the A-DU42 heavy duty, contractor grade, built from aluminum plate to handle road vibration and weather extremes.
- Diamond Tread Door: A single top-hinged diamond tread plate door with an extra deep opening makes it easier to get cargo out.
- Gas Spring Door: The door opens with the aid of self-powered gas springs.
- 200 lb Sliding Drawer: The drawer slides out on a 200 lb rating and has rubber matting and removable dividers.
- T-Handle Locks: ATB Dolphin Tail DT T-handle locks are tamper resistant for break-in protection.
- Mounting Kit Included: A mounting kit comes with the box.
Description & Fitment
The ATB A-DU42 is a heavy duty aluminum top mount utility box with a single drawer below a top-hinged diamond tread plate door. The door opens on self-powered gas springs and gives an extra deep opening for getting cargo out. The drawer slides on a 200 lb rating and comes with rubber matting and removable dividers. ATB Dolphin Tail DT T-handle locks secure it, and a mounting kit is included.
Fitment & Compatibility
How to choose: measure the mounting space and pick 21"H x 16"D or 28"H x 20"D; both are 36" wide.
Leave room in front of the box to pull the drawer out fully and to swing the door up.
Fits: Truck and trailer mounting spaces with room for a 36" wide box (check the size chart)
About ATB
American Truckboxes (ATB) builds aluminum and steel truck boxes, tanks and storage in Blanchard, North Dakota, and has done so for more than 25 years, by its own account. Its range covers pickup crossover, side-mount, chest and drawer boxes, service-truck boxes and packs, fuel tanks, and heavy-truck and trailer boxes.
Authorized ATB dealer. Prestige Truck is an authorized ATB dealer: every box on this page is built by ATB to the part number shown.
Frequently Asked Questions
Will it fit my truck?
Compare the 36" width and the depth and height in the table with the space where you plan to mount it.
How do I pick a size?
Measure the space where the box will sit and compare with the sizes in the table; both are 36" wide, in 21"H x 16"D or 28"H x 20"D.
How much does the drawer hold?
ATB rates the drawer at 200 lbs. It has rubber matting and removable dividers.
Does it come with mounting hardware?
Yes, ATB includes a mounting kit.
What locks does it use?
ATB Dolphin Tail DT T-handle locks, which ATB describes as tamper resistant.
How should I care for the aluminum?
Wash it with mild soap and water to remove road salt and grime, and rinse the tread plate grooves.
Installation
- 1/2" ratchet wrench
- 1/2" wrench
- Tape measure
- Drill
- 3/8" drill bit
Here's the short version. Follow ATB's install sheet (below) for your truck's exact positions and hardware.
- Check all parts against the parts list and look over the mounting area to make sure there is room for the box.
- Set the box on the flat surface where it will mount to confirm the fit. The box has no predrilled holes; drill as close to the outside edges of the box as possible.
- Remove the box, mark four holes on the outside bottom of the box and drill them with a 3/8" bit.
- Set the box back in position and mark the drilled hole pattern onto the mounting surface.
- Remove the box and drill four 3/8" holes at the marks, following the truck maker's shop manual for drilling.
- Insert the bolts with washers from the box side through the mounting surface, add a flat washer and lock nut underneath, and tighten all nuts securely.
Stuck on a step?
- A-DU42 aluminum drawer utility box
- Mounting kit
Specifications
| Brand | ATB |
|---|---|
| Series | A-DU42 |
| Type | Top mount drawer utility box |
| Material | Aluminum plate |
| Door | Single top-hinged diamond tread plate door with gas springs |
| Drawer | Single drawer, 200 lbs, rubber matting, removable dividers |
| Lock | Dolphin Tail DT T-handle locks |
| Mounting | Mounting kit included |
| Made in | USA |
| Part number | A-DU42-211636SS-T |
| Part # | Size |
|---|---|
| A-DU42-211636SS-T | 21"H x 16"D x 36"W |
| A-DU42-282036SS-T | 28"H x 20"D x 36"W |
Warranty, shipping & returns
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Warranty
ATB covers its standard truck boxes with a 60-month (5-year) limited warranty for the original purchaser; it is not transferable.- For a warranty claim, contact us with your order number and photos and we will work it through with ATB.
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Shipping
Ships by freight from the ATB factory in Blanchard, ND; lift-gate delivery available.- Alaska, Hawaii and Canada: contact us for a freight quote before you order.
- We email your tracking details as soon as it ships.
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Inspect on delivery
Check the box when the freight arrives, before the driver leaves: look over the lids, doors, corners and welds for dents, scratches or shipping damage. Note any damage on the delivery receipt and send us photos. Check it as soon as it arrives.- Look for crushed ends, punctures or tears in the carton.
- If something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).
- Open the box and check the parts against the parts list before you install.
- Email support@prestigetruck.com right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.
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30-day returns
Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.- Email support@prestigetruck.com with your order number. We reply within 1-2 business days with instructions.
- Damaged, defective or wrong item: we send a prepaid label or arrange a pickup.
- Changed your mind: you pay return shipping. No restocking fee.
- Refunds go back to your original payment method within 7 business days of approval. See our returns policy.









