


ATB A-SG41 Aluminum Topside Rail Utility Truck Tool Box, Top Hinged Doors, DT 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
- .100 Aluminum Tread Plate: ATB builds the A-SG41 topside box from .100 aluminum in an all diamond tread plate finish, made to handle road vibration and weather.
- Top Hinged Doors: Single or double top hinged doors give maximum opening space for easier cargo removal.
- Dolphin Tail DT Locks: ATB heavy-duty dolphin tail DT-handle locks are key and padlockable for break-in protection.
- Gas Springs, Stainless Hinge: Heavy-duty gas springs and a continuous stainless steel hinge carry each reinforced door.
- Weatherstrip and Stainless Hardware: Each box comes with weatherstrip and all stainless steel hardware.
- Rail or Flatbed Mounting: ATB says SG Series boxes can mount on a truck rail or flatbed; mounting kits M3200D, M3500T and M3500TT are sold separately.
Description & Fitment
The ATB A-SG41 is a .100 aluminum topside utility box in an all diamond tread plate finish that mounts along a truck rail or flatbed. Single or double top hinged doors open wide on heavy-duty gas springs and a continuous stainless steel hinge. ATB's dolphin tail DT-handle locks take a key or a padlock, and each box comes with weatherstrip and all stainless hardware. The mounting kit is sold separately.
Fitment & Compatibility
How to choose: measure the rail or flatbed edge where the box will sit; the width in the table (63" to 96") is the box length. Then pick the height (16" to 24") and depth (14" to 18") that suit your bed.
Doors: ST part numbers have a single top hinged door, DT part numbers double top hinged doors.
Order a mounting kit separately: ATB lists the M3200D, M3500T and M3500TT.
Fits: Truck bed rails and flatbeds, topside mount (measure rail length; see the size table)
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 your rail or flatbed length with the box width in the table and check the depth against the bed space you need. Contact us with your measurements for a second check.
How do I measure for a topside box?
Measure the length of the bed rail or flatbed edge where the box will sit; the width in the table is the box length. Then check the depth against the bed space you need and the height against any rack or window.
Does it come with a mounting kit?
No. ATB lists the M3200D, M3500T and M3500TT mounting kits separately.
What do ST and DT mean in the part number?
ST part numbers have a single top hinged door; DT part numbers have double top hinged doors.
How do the locks work?
ATB's dolphin tail DT-handle locks take a key and can also be padlocked.
Can I order a custom size?
ATB builds custom sizes on request. Contact us with the dimensions you need and we will get a quote from ATB.
Installation
- 1/2" to 9/16" ratchet wrench
- 1/2" to 9/16" wrench
- Tape measure
- Drill
- 5/16" drill bit
- Square
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, then set the box on the bed rail behind the cab and square it.
- Mark the rail area, flip the box over and drill three holes in the box bottom centered on the rail (check the rail is drillable there). Apply the 3" rubber strip.
- Set the box back on the rails, shim it off the fender with small wood pieces, mark the holes and drill through the truck rail.
- Fit the three bolts from inside the box with a washer each side and a lock nut, and tighten securely.
- Assemble the two side brackets, square them, mark and drill the box back with a 5/16" bit, bolt them on and fit the three self-drilling screws at each bracket bottom.
- If M3500TT top cross brackets are used, bolt them across the tops of both boxes; with an over-cab ladder rack the box tops can bolt to the rack instead.
Stuck on a step?
- A-SG41 topside box with weatherstrip, gas springs and locks
Specifications
| Brand | ATB |
|---|---|
| Series | A-SG41 |
| Type | Topside rail utility box |
| Material | .100 aluminum |
| Finish | All diamond tread plate |
| Doors | Top hinged, reinforced, gas springs, continuous stainless hinge |
| Lock | Dolphin tail DT-handle locks, key and padlockable |
| Hardware | All stainless steel |
| Mounting | Mounting kit not included (M3200D, M3500T or M3500TT) |
| Made in | USA |
| Part number | A-SG41-161463ST-TT |
| Part # | Size | Doors |
|---|---|---|
| A-SG41-161463ST-TT | 16"H x 14"D x 63"W | Single top hinged door |
| A-SG41-161472ST-TT | 16"H x 14"D x 72"W | Single top hinged door |
| A-SG41-161488DT-TT | 16"H x 14"D x 88"W | Double top hinged doors |
| A-SG41-181663ST-TT | 18"H x 16"D x 63"W | Single top hinged door |
| A-SG41-181672ST-TT | 18"H x 16"D x 72"W | Single top hinged door |
| A-SG41-181688DT-TT | 18"H x 16"D x 88"W | Double top hinged doors |
| A-SG41-181690DT-TT | 18"H x 16"D x 90"W | Double top hinged doors |
| A-SG41-181696DT-TT | 18"H x 16"D x 96"W | Double top hinged doors |
| A-SG41-211672ST-TT | 21"H x 16"D x 72"W | Single top hinged door |
| A-SG41-211684DT-TT | 21"H x 16"D x 84"W | Double top hinged doors |
| A-SG41-211688DT-TT | 21"H x 16"D x 88"W | Double top hinged doors |
| A-SG41-211696DT-TT | 21"H x 16"D x 96"W | Double top hinged doors |
| A-SG41-241896DT-TT | 24"H x 18"D x 96"W | Double top hinged doors |
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.









