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  1. Underbody Tool Box
  2. UWS
  3. 40 Inch Long
  4. Medium Capacity
  5. Aluminum
  6. 18 Inch Wide
UWS Underbody Toolbox - Single Door - 9.2 cu ft - Bright Aluminum

UWS Underbody Toolbox - Single Door - 9.2 cu ft - Bright Aluminum

Item # UWS04011
Our Price: $771.95
You Save: $81.90
Underbody Tool Box
This item qualifies for Free Shipping
Shipping Weight: 50 lbs
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48" Long x 18" tall x 19" deep; 9.2 cubic feet; underbody toolbox with locking t-handle. Constructed of rust-proof aluminum. Great Prices for the best underbody tool box from UWS. UWS Underbody Toolbox - Single Door - 9.2 cu ft - Bright Aluminum part number UWS04011 can be ordered online at or call 1-800-940-8924 for expert service.
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UWS Underbody Tool Box - UWS04011

  • 40 Inch Long
  • Medium Capacity
  • UWS
  • Aluminum
  • 18 Inch Wide
  • 18 Inch Tall
  • Trailer Underbody Box
  • Truck Underbody Tool Box
  • Silver

48" Long x 18" tall x 19" deep; 9.2 cubic feet; underbody toolbox with locking t-handle. Constructed of rust-proof aluminum.


  • Mountable above or under flatbed truck or trailer
  • Heavy-duty aluminum construction with fully welded seams - guaranteed not to rust
  • Heavy gasket forms a watertight seal
  • Unique "water channel" weatherproof design
  • Dust barrier helps to protect contents from the elements
  • Secure T-handle with brass lock
  • Lid opens 90 degrees
  • Made in the USA


  • External dimensions: 48" long x 18" tall x 19" deep
  • Internal height: 13-1/4"
  • Door opening: 43-1/2" long x 13-1/4" tall
  • Capacity: 9.2 cu ft of usable space
  • Construction: 0.080 aluminum tread plate
  • Lock includes 2 keys
  • Limited lifetime warranty

diagram of toolbox dimensions

EC40101 Single-Lid Underbody Toolbox by United Welding Services (UWS)


Video of UWS Underbody Toolbox - Single Door - 9.2 cu ft - Bright Aluminum

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of UWS Underbody Tool Box - Bright Aluminum Underbody Toolbox - UWS04011

Hi, everybody, Andy here with, and today we're gonna take a look at this UWS bright aluminum underbody tool box. This underbody tool box is a perfect way to add storage space to your truck or trailer, keeping your items safe, secure, and accessible. It easily mounts underneath the bed of a flatbed truck, a dump truck, or trailer body, leaving more room to haul other cargo. This box features a one-handed access with this stainless steel lockable T-handle for convenience and security. And before I open this box, I just wanted to give you a side profile to show you that when that T-handle is pushed down, it is completely flush with the box. So you're not gonna have to worry about getting anything caught on that T-handle when it is closed.

This does include two keys. So this can be easily locked up. And the inside, the items that you have inside this box, will be secure within. So that handle will not turn when you have this locked. So again, easy, one-hand opening operation, and this will come down.

And this drop-down door does open 90 degrees with these strong, aircraft-grade, stainless steel cables fully supporting this door. And it's gonna allow easy access to your cargo space. Now, this does have a capacity of 9.2 cubic feet. And I don't have a whole lot of tools here, but I just wanted to kinda give you an idea of what you could fit in here. Obviously, you can fit a whole lot more in this box than what I'm putting in, but I just have some smaller tool cases and some wrenches.

And so again, you're gonna have a lot of space with this 9.2 cubic feet that this is going to offer you. This also has a MicroSeal gasket that is going to help seal out moisture, dust, dirt, along with this weather channel that is going to allow this to be a weatherproof design. So you're not gonna have to worry about the contents of your box getting wet with that MicroSeal gasket and that channel. It's gonna keep your contents nice and dry. Now, this is an extra-thick, aluminum tread plate construction, and it has this bright aluminum finish.

So it is rustproof and fully welded seams. So this is heavy duty, and this is gonna be more heavy duty, a more heavy duty and durable box that can take abuse and constant wear and tear from the road. So it's gonna be sitting underneath your vehicle. It's gonna be exposed to the road. So it's gonna be able to take that kind of punishment, along with the punishment of you throwing heavier items inside of this box. Now, this does weigh about 40 pounds. And the overall dimensions, we're sitting at 48 inches long by 19 inches wide and about 18 inches high. And then the opening measures about 43 1/2 inches long by 13 inches high. So that kinda gives you an idea of the size of the opening of this box. Now, this does have a limited lifetime warranty. And it is important to mention that this does not come with mounting hardware. So you would have to get the mounting hardware that would best fit your application. Well, that's gonna conclude our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me..


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Info for this part was:

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Matthew S
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Hannah L
Employee Kristina F
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Employee Andy C
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