

ATB S-HS3 Steel High Side Mount Truck Tool Box, Push-In Locks, Sliding Tray
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Fits the same truck
Features
- Powder Coated Steel: ATB builds the S-HS3 high side box from steel with an undercoat and a textured black powder coat topcoat for corrosion resistance.
- Push-In Locks: ATB fits push-in, tamper-resistant locks and says they give strong break-in protection.
- Gas Spring Lid: The top-open lid lifts on self-powered gas springs and stays up while you work.
- Pro-Sliding Tray: A sliding tray keeps small tools and parts on top, out of the main compartment.
- Extra Deep Opening: ATB gives the lid an extra deep opening so bulky cargo comes out more easily.
- M3530R Kit Included: Every S-HS3 ships with ATB's M3530R mounting kit, and ATB says it pairs with its XC and HC Series boxes.
Description & Fitment
The ATB S-HS3 is a steel high side box that mounts on the bed rail along the side of a pickup bed. It is 16" tall and 17" deep, and it comes in six lengths from 40" to 87". The top-open lid rides on self-powered gas springs, the push-in locks are tamper resistant, and a pro-sliding tray holds small parts. ATB finishes it in textured black powder coat over an undercoat, includes the M3530R mounting kit and builds it in the USA.
Fitment & Compatibility
How to choose: every S-HS3 is 16"H x 17"D. Measure the bed rail length you want to cover and pick the width (length) from 40" to 87".
Check that the 17" depth leaves the bed space you need between the boxes, and plan around a crossover box if you run one; ATB says HS Series boxes pair with its XC and HC Series.
Finish: textured black (BX) powder coated steel. The M3530R mounting kit is included.
Fits: Full-size pickup beds, rail-mounted along the side (measure bed 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 full-size pickup?
ATB says its full-size side boxes fit full-size trucks. Measure your bed rail length and pick the width from the size table that fits it.
How do I pick the right length?
Measure the usable length of your bed rail from the cab side to where you want the box to end, then pick the width in the size table that fits. The S-HS3 runs from 40" to 87" long.
How does the S-HS3 mount?
It sits on the bed rail along the side of the bed and bolts down with the M3530R mounting kit that ATB includes.
Can I pair it with a crossover box?
Yes. ATB says its HS Series side boxes can be used with its XC and HC Series boxes.
What kind of lock does it have?
ATB fits push-in, tamper-resistant locks on the S-HS3.
How do I care for the powder coat?
Wash with mild soap and water and touch up chips early so the steel underneath stays protected; ATB uses an undercoat plus a topcoat for corrosion resistance.
Installation
- 1/2" ratchet wrench
- 1/2" wrench
- Tape measure
- Drill
- 3/8" drill bit
- Square
- 5/16" drill tip
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 set the box on the bed rail right behind the cab to confirm the fit. Slotted holes are predrilled in the box.
- Remove the box, flip it over and apply the 3" rubber strip to its mounting surface.
- Set the box back on the mounting pads and shim it off the fender with small wood pieces.
- Insert the three bolts with washers from inside the box, fit a mounting clamp and flange lock nut on each, center the box 1/8" from the bed front and tighten.
- Assemble the two side brackets, square them and mark their top holes on the side box, then drill with a 3/8" bit.
- Bolt the brackets on, square them and fit the two self-drilling screws at the bottom of each bracket.
Stuck on a step?
- S-HS3 high side mount box
- M3530R mounting kit
Specifications
| Brand | ATB |
|---|---|
| Series | S-HS3 |
| Type | High side mount box |
| Material | Steel |
| Finish | Textured black powder coat (BX) |
| Height x depth | 16" x 17" |
| Lid | Top open with gas springs |
| Lock | Push-in tamper-resistant locks |
| Tray | Pro-sliding tray |
| Mounting | M3530R mounting kit included |
| Made in | USA |
| Part number | S-HS3-161740-BX |
| Part # | Size |
|---|---|
| S-HS3-161740-BX | 16"H x 17"D x 40"W |
| S-HS3-161748-BX | 16"H x 17"D x 48"W |
| S-HS3-161754-BX | 16"H x 17"D x 54"W |
| S-HS3-161760-BX | 16"H x 17"D x 60"W |
| S-HS3-161770-BX | 16"H x 17"D x 70"W |
| S-HS3-161787-BX | 16"H x 17"D x 87"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.









