

ATB S-HS3 Steel Side Mount Truck Tool Box, Push-Button Lock, Sliding Tray
Free gifts included with your order
- No Sales TaxZero sales tax on every order
- 30-Day Money-Back GuaranteeReturn it within 30 days of delivery for a refund

Questions or a custom quote?
Mon to Fri, 9am to 5pm EST
Complete your upgrade
Fits the same truck
Features
- Powder Coated Steel: ATB builds the S-HS3 side box from steel, powder coated textured black over a durable undercoat.
- Super Heavy Duty: ATB calls the S-HS3 super heavy duty, made to handle road vibration and weather extremes.
- Push-Button Lock: An advanced push-button lock gives the tamper resistance ATB designs into its side boxes.
- Gas Spring Lid: The top-open lid lifts with self-powered gas springs, and an extra deep lid opening makes cargo easier to remove.
- Pro-Sliding Tray: A sliding handy tray keeps small tools on top and within reach.
- Mounting Kit Included: The M3530R mounting kit comes standard, and ATB says HS boxes pair with its XC and HC Series boxes.
Description & Fitment
The ATB S-HS3 is a steel side mount box that ATB calls super heavy duty, powder coated textured black and sized 16" high by 13" deep along the bed rail. Its top-open lid lifts on self-powered gas springs, an advanced push-button lock secures it, and a pro-sliding tray keeps small tools within reach. ATB includes the M3530R mounting kit and builds the box in the USA.
Fitment & Compatibility
How to choose: measure the usable bed-rail length to pick the width (40" to 87"); every S-HS3 is 16" high and 13" deep.
Every box on this page is powder coated textured black (BX).
The M3530R mounting kit is included; ATB says HS boxes pair with its XC and HC Series boxes.
Fits: Full-size pickup bed rails, side 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 full-size pickup?
ATB says its full-size side boxes fit all full-size trucks. Measure the rail length you want to cover and compare with the width in the table.
How do I choose a length?
Measure the bed rail from the cab or crossover box to where you want the side box to end, and pick the width (40" to 87") that fits. Every S-HS3 is 16" high and 13" deep.
Will it fit my truck?
ATB says its full-size side boxes fit all full-size trucks. Check the rail length you have against the widths in the table.
Does it come with mounting hardware?
Yes. ATB includes the M3530R mounting kit as standard.
Can I pair it with a crossover box?
Yes. ATB says HS Series side boxes can be used with its XC and HC Series boxes.
How do I care for the powder coat?
Wash with mild soap and water and rinse off road salt; touch up any chips promptly to keep the steel protected.
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 steel side mount box
- M3530R mounting kit
Specifications
| Brand | ATB |
|---|---|
| Series | S-HS3 |
| Type | Side mount box |
| Material | Steel |
| Finish | Powder coated textured black (BX) |
| Lid | Top open with gas springs |
| Lock | Advanced push-button lock |
| Tray | Pro-sliding tray |
| Mounting | M3530R mounting kit included |
| Made in | USA |
| Part number | S-HS3-161340-BX |
| Part # | Size |
|---|---|
| S-HS3-161340-BX | 16"H x 13"D x 40"W |
| S-HS3-161348-BX | 16"H x 13"D x 48"W |
| S-HS3-161354-BX | 16"H x 13"D x 54"W |
| S-HS3-161360-BX | 16"H x 13"D x 60"W |
| S-HS3-161370-BX | 16"H x 13"D x 70"W |
| S-HS3-161387-BX | 16"H x 13"D x 87"W |
Warranty, shipping & returns
-
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.
-
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.
-
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.
-
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.









