ATB A-HS3 side mount toolbox, 13 in deep, diamond tread finish, lid closed
ATB A-HS3 side mount toolbox, 13 in deep, black diamond tread finish, lid closed
ATB A-HS3 side mount toolbox, 13 in deep, diamond tread finish, lid open showing sliding tray
ATB A-HS3 side mount toolbox, 13 in deep, black diamond tread finish, lid open

ATB A-HS3 Aluminum Side Mount Truck Tool Box, Push-Button Lock, Sliding Tray

$702.75
Freight shippingCalculated at checkout Only 5 leftIn stock now  Estimated delivery
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Details
Details
  • 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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Features

  • Aluminum Diamond Tread Plate: ATB builds the A-HS3 side mount box from aluminum tread plate, made to handle road vibration and weather extremes.
  • Medium Capacity: ATB rates the A-HS3 as medium capacity, 16" high and 13" deep along the bed rail.
  • 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 A-HS3 is a medium capacity aluminum tread plate side mount box that sits 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, in bright tread or textured black.

Fitment & Compatibility

How to choose: measure the usable bed-rail length to pick the width (40", 48", 54" or 60"); every A-HS3 is 16" high and 13" deep.

Finish: -TT is bright diamond tread plate, -TTBX is 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

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 60") that fits. All A-HS3 boxes are 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.

What is the difference between Tread and Tread Black?

The -TT part numbers are bright diamond tread plate; the -TTBX part numbers have ATB's textured black (BX) powder coat.

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.

Installation

Install time About 1 hour per box
What's involvedThe side box clamps to the pickup bed rail with three bolts and clamps (M3530R kit) plus two side bracketsyou drill 3/8" holes in the box for the brackets.
Tools
  • 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.

  1. 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.
  2. Remove the box, flip it over and apply the 3" rubber strip to its mounting surface.
  3. Set the box back on the mounting pads and shim it off the fender with small wood pieces.
  4. 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.
  5. Assemble the two side brackets, square them and mark their top holes on the side box, then drill with a 3/8" bit.
  6. Bolt the brackets on, square them and fit the two self-drilling screws at the bottom of each bracket.

Stuck on a step? Ask our install experts

What's included
  • A-HS3 side mount box
  • M3530R mounting kit

Specifications

BrandATB
SeriesA-HS3
TypeSide mount box
MaterialAluminum diamond tread plate
CapacityMedium
LidTop open with gas springs
LockAdvanced push-button lock
TrayPro-sliding tray
MountingM3530R mounting kit included
Made inUSA
Part numberA-HS3-161340-TT
Versions
Part # Size Finish
A-HS3-161340-TT 16"H x 13"D x 40"W Tread
A-HS3-161340-TTBX 16"H x 13"D x 40"W Tread Black
A-HS3-161348-TT 16"H x 13"D x 48"W Tread
A-HS3-161348-TTBX 16"H x 13"D x 48"W Tread Black
A-HS3-161354-TT 16"H x 13"D x 54"W Tread
A-HS3-161354-TTBX 16"H x 13"D x 54"W Tread Black
A-HS3-161360-TT 16"H x 13"D x 60"W Tread
A-HS3-161360-TTBX 16"H x 13"D x 60"W Tread Black

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.
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