Weather Guard 126 Steel Crossover Truck Tool Box, Full-Size Standard, Gloss Black (126-5-04)

$1,343.00 Regular price $1,507.99 Save $164.99
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Weather Guard Truck Box Hardware Installation Guide

Weather Guard's official hardware video zooms in on the clamp and bolt kit that secures its truck boxes to the bed rails without drilling. It is a helpful close-up companion to the full box install and shows how the mounting brackets hook under the rail lip and tighten down. Use it alongside the printed instructions that ship with the box.

How the 1Key UltraLock System Works

A step-by-step look from Weather Guard at what the 1Key UltraLock actually does: how the cylinder accepts a new code, why the red push button retracts when the box is locked, and how the latch pulls the lid down against the seal. Worth two minutes before you set the box up.

How to Code Your 1Key UltraLock Lock

Weather Guard's official walkthrough for coding the lock so this box opens with the same key as the rest of your Weather Guard boxes. Follow it once when the box arrives and you can stop carrying a separate key for every lid on the truck.

Weather Guard Truck Box Hardware Installation Guide

Weather Guard's official hardware video zooms in on the clamp and bolt kit that secures its truck boxes to the bed rails without drilling. It is a helpful close-up companion to the full box install and shows how the mounting brackets hook under the rail lip and tighten down. Use it alongside the printed instructions that ship with the box.

How the 1Key UltraLock System Works

A step-by-step look from Weather Guard at what the 1Key UltraLock actually does: how the cylinder accepts a new code, why the red push button retracts when the box is locked, and how the latch pulls the lid down against the seal. Worth two minutes before you set the box up.

How to Code Your 1Key UltraLock Lock

Weather Guard's official walkthrough for coding the lock so this box opens with the same key as the rest of your Weather Guard boxes. Follow it once when the box arrives and you can stop carrying a separate key for every lid on the truck.

Frequently Asked Questions

Straight answers on specs, fit and support

Will the 126-5-04 fit my truck?

It is a full-size standard crossover, or saddle, box that mounts across the top bed rails behind the cab, so it fits full-size pickups such as the F-150, Silverado and Sierra 1500 through 3500, Ram 1500 through 3500, Tundra and Titan. It needs about 72" of rail-to-rail width. Measure your bed rails and check clearance behind the cab first, and note it is not designed for compact or mid-size trucks.

Does it require drilling to install?

No. The box ships with under-rail clamps and hardware, so it mounts without drilling into your truck. Most installs take about 20 to 30 minutes and go easiest with two people to lift and hold the box while you clamp it down.

How secure is this Weather Guard box?

It uses the Weather Guard 1Key UltraLock system with tamper-resistant push-button locks that sit recessed when locked, so you get a quick visual cue your gear is secured. The 1Key design also lets you code multiple boxes on a truck or a whole fleet to a single key.

Does the gloss black finish hold up to sun and weather?

Yes. The gloss black ARMOR TUF powder coat is a hard, UV-stable and corrosion-resistant coating, and the full-perimeter D-shaped weather seal keeps the contents dry. It resists chips and fading through seasons of loading and road spray.

Will the gloss black finish scratch or show dust easily?

The gloss black ARMOR TUF powder coat is a hard, chip-resistant coating built for work trucks, so normal loading and unloading will not mar it easily. Like any glossy surface it can show fine dust, which wipes off with a quick pass of a microfiber cloth.

What is it made of and how big is it?

It is built from heavy-duty formed steel with a gloss black ARMOR TUF powder coat. The exterior measures 72"L x 20"W x 18"H with 11.0ft³ of storage, and it ships at about 123 lb, so it is heavy-duty and built to last.

What our customers say

4.6 · 22 reviews

BigDaddy73 Verified
07/05/2025

Arrived as scheduled, no dents, dings or scratches, seems like...

Arrived as scheduled, no dents, dings or scratches, seems like a sturdy tool box.

Dan Verified
03/23/2025

The best tool box I’ve ever owned. Heavy duty...

The best tool box I’ve ever owned. Heavy duty construction, best thing to theft proof I could find

Austin Verified
11/21/2024

Very easy to install. Looks nice in 6ft bed not...

Very easy to install. Looks nice in 6ft bed not too big. Large carrying capacity. Fits a small cooler and a full set of tools. Comes with a sliding tray for drill bits etc. As well as a plastic box with separators for screws etc. Very well made and completely waterproof.

HomeDepotCustomer Verified
07/16/2024

love this Box, I thought it was a little bit overpriced , But the quality makes up for it, and the Manford top design is so much better than the Flat design I'm very happy with it

WashingtonState
04/13/2024

Nearly perfect

The quality of this box is second to none. It is well built and the tray layout is very efficient. Two things I see that prevent this from being 5 stars. First the mounting brackets need to be wider to offer an more secure fit on trucks with plastic rail covers. They work but are not as secure as I would prefer. Second for a box that costs as much as this one does they should include a plug kit for the mounting bolt holes. For those of us in rainy climates water does get in the box through the holes. Duct tape fixed it for me but it is an engineering oversight in my opinion.

Me Verified
08/16/2025

I got what I wanted it’s a good box but...

I got what I wanted it’s a good box but the latches that attach from the box to my truck didn’t work

JASON Verified
10/19/2025

Best truck tool box, but box is kinda expensive...

Best truck tool box, but box is kinda expensive

JOHN Verified
07/17/2025

The staff was great loading and working with me during...

The staff was great loading and working with me during pick up.

MacA
06/27/2026

Love the toolbox but..

The toolbox has served me well for the 2 years that I've had it. Overall still in great condition but as i had read in some reviews before i bought it, there seemed to be issues with workmanship. For my unit, the welds were not ground down at all on the outsides of the box, which when i first got it, thought nothing of it. But about 1.5 years into owning it I started to notice rust forming from underneath the paint from those areas with bulging welds, more specifically on both front edges of the box were the lock buttons are. I guess this is bound to happen over time, but it seems those bulging welds that were not ground down only increased the speed of the rust forming. Since they are not flat & uniform. Anyways overall, i still like it, but may go for a higher end toolbox in the future if i continue to see more rust from underneath the paint which is is impossible to detect before…

KP Verified
07/01/2025

Very nice toolbox, glad they offer it in this white powder coated steel option, should hop

Very nice toolbox, glad they offer it in this white powder coated steel option, should hopefully last a long time and can't see any reasons why it wouldn't. Opens and closes very smooth, stays water tight, and the locking mechanisms are superior to many other toolbox brands. Has a lot of space inside and even came with a couple extra things like a bolt/screw organizer and clips to hold a level. The mounting system was very simple yet rugged and solid, and the 2 loops on the front are perfect for strapping down things like gas cans and propane tanks etc. Overall very happy with this product and highly recommend it to anyone willing to spend the extra money for the high quality that it is.

Dan
08/22/2025

Sturdy High Quality Tool Box!

After having read some of the reviews I was hesitant. However, the box I received was perfect. Great workmanship. Solid feel. Sturdy. I feel like this box will last a long time!

wbrownl Verified
06/15/2025

Great Product, Fast Shipping !!!! Thank You.

Great Product, Fast Shipping !!!! Thank You.

Jerry Verified
06/10/2025

Really like the product, arrived in great shape, didn't make...

Really like the product, arrived in great shape, didn't make delivery date or second delivery date, but finally did arrive and all is well !

DB Verified
12/16/2024

It was the easiest installation that I have ever done...

It was the easiest installation that I have ever done with quality hardware.

MSC Verified
08/15/2024

The only complaint is that the picture is misleading, it shows black diamond plate and the

The only complaint is that the picture is misleading, it shows black diamond plate and the box is in fact flat steel.

Shayne
08/18/2026

One great tool box

This is one tough box. It has remained water tight since bought new!

JOHN A Verified
08/10/2024

I was very happy with my weather guard toolbox ...

I was very happy with my weather guard toolbox purchase and the HD online experience

DonH
04/16/2025

Solid box, questionable workmanship!

I am happy with the design of the box, solid and secure. However, the quality control and workmanship are equal to overseas at best. You will see in the photos, incomplete powder coat coverage. Poor or in-completed prep work before the powder coat, and tasks completely missed. Sure, these are not major issues, but this is a premium priced box, and therefore judged as such. Would I recommend Weatherguard? Yes, but with a word of caution. American design, Overseas build quality!

Nick L Verified
04/28/2025

Functional

Product was damaged during shipping. Still is functional, but paint will eventually chip off

Nicknamefornicknamebox Verified
02/10/2025

The box is good, locks operate like butter. Both locks engage when closing by simple pushi

The box is good, locks operate like butter. Both locks engage when closing by simple pushing firmly on one side of the box. As good as this box is I can't say it's worth the price point (to me). Fit and finish is ok as some spots were not consistent with powder coating. Also, I would have liked a little thicker material. That's why I give it a 4 stars and not the 5. I'm out.

The Demolition Company
09/17/2025

Very strong and looks great

Love the smooth black finish and strength of the box. One lock stopped working but it’s under warranty and they are sending me a new one.

TEAM + Bullet Liner & Acc
12/25/2024

Great quality and reliability

We at TEAM Plus Bullet Liner find this and all WeatherGuard products to be one of our favorite product lines to "go to" when outfitting truck for our customers whether for contractor or individuals.