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  1. Underbody Tool Box
  2. DeeZee
  3. 30 Inch Long
  4. Medium Capacity
  5. 18 Inch Tall
  6. Aluminum
DeeZee Specialty Series Underbody Tool Box - Brite-Tread Aluminum - 5.94 Cu Ft - Silver

DeeZee Specialty Series Underbody Tool Box - Brite-Tread Aluminum - 5.94 Cu Ft - Silver

Our Price: $346.69
You Save: $233.89
Underbody Tool Box
Shipping Weight: 31 lbs
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30" Long x 20" wide x 18" tall. Underbody tool box; Brite-Tread aluminum; locking T-handle latch; drop down door; underbed storage for flatbed trucks, dump trucks and trailers. Great Prices for the best underbody tool box from DeeZee. DeeZee Specialty Series Underbody Tool Box - Brite-Tread Aluminum - 5.94 Cu Ft - Silver part number DZ74 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (148)
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  • Videos (1)
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DeeZee Underbody Tool Box

  • 30 Inch Long
  • Medium Capacity
  • 18 Inch Tall
  • DeeZee
  • Aluminum
  • 20 Inch Wide
  • Trailer Underbody Box
  • Truck Underbody Tool Box
  • Silver

30" Long x 20" wide x 18" tall. Underbody tool box; Brite-Tread aluminum; locking T-handle latch; drop down door; underbed storage for flatbed trucks, dump trucks and trailers.


  • Rustproof Brite-Tread aluminum construction
    • Rectangular, underbody style
  • Single, drop down door opens from top to bottom - provides easy access to cargo
  • Stainless steel, locking T-handle latch deters theft
    • 2 Keys included
  • Watertight C-channel and bulb seal prevent water from entering the box and damaging your belongings
  • Simple installation
    • Mounts to your truck or trailer using universal mounting kit DZDB-2502 (required for installation; sold separately)
  • Made in the USA


  • Application: flatbed trucks, dump trucks or trailers
  • Overall dimensions: 30" long x 20" wide x 18" tall
  • Capacity: 5.94 cu ft
  • Limited lifetime warranty

This underbody box is ideal for storage under your flatbed truck, dump truck or trailer body. The T-handle latch is easy to open from above the tool box, and it locks to secure your contents. Brite-Tread aluminum construction is rustproof and the C-channel and bulb seal are watertight, ensuring a long life for your tool box

DZ74 Dee Zee Specialty Series Under Bed Toolbox - Brite-Tread - 5.94 Cu Ft - 30" x 20" x 18"

Item # DZ74

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Video of DeeZee Specialty Series Underbody Tool Box - Brite-Tread Aluminum - 5.94 Cu Ft - Silver

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

Video Transcript for DeeZee Trailer Cargo Organizers - Toolbox - DZ74 Review

Today we're going to be taking a look at the DZ Specialty Series Underbody Toolbox. This is a rust-proof, bright tread aluminum construction. It's a rectangular underbody style box. It's going to feature a single drop down door that's going to open from top to bottom to provide easy access to the cargo area. The capacity of the unit is 5.94 cubic feet. It's going feature the stainless steel locking T-Handle latch that's going to help deter theft. It does come with two keys.

It's got the lock core right there. Pull out the handle, rotate it, and it's going to open that lid. It's got the two chains to hold it in the open position, that way you don't have to hold it when loading or unloading your gear, or your cargo. It's also going to feature the water-tight C-channel and bold seal that's going to prevent water from entering the box and damaging your belongings. To lock it, you just rotate the key .. That's going to lock the T-Handle in place so you can't rotate it to open up the box.

Very simple installation. It's going to mount to your truck or trailer using a universal mounting kit. It is sold separately. It can be found right here at ETrailer.Com using DZDB-2502 as the part number. That is required for the installation. This product is made right here in the USA.

It's going to be designed for flatbed trucks, dump trucks, or trailers. Really nice design. Take a look at the overall dimensions real quick, starting with the width from front to back. It's going to give us a measurement of about 20 inches. Overall height, looking at about 18 inches.

If we take a measurement of the overall length, it's going to give us a measurement of about 30 inches long. DZ is going to cover this product with a limited lifetime warranty. That's going to do it for today's look at the DZ Specialty Series Underbody Toolbox.

Customer Satisfaction Score:

Customer Reviews

DeeZee Specialty Series Underbody Tool Box - Brite-Tread Aluminum - 5.94 Cu Ft - Silver - DZ74

Average Customer Rating:  4.6 out of 5 stars   (148 Customer Reviews)

30" Long x 20" wide x 18" tall. Underbody tool box; Brite-Tread aluminum; locking T-handle latch; drop down door; underbed storage for flatbed trucks, dump trucks and trailers.


Has met and surpassed the steel box that was on the truck before I installed this DeeZee box. The fact that I removed a steel box , and put on aluminum concerned me at first. However; A year in I have no doubt that it was the right decision.


I use this on my custom teardrop trailer and I really like this tongue box.
One year later, this is holding up well. The only thing is that the lock hinge started to show a little rust almost right away, but it hasn't progressed too much. It was a little disappointing though.
That said, I love that this has a padlock instead of having to use yet-another small key (I already have 3 just for my teardrop). It wasn't something I considered originally but figured out as soon as I put my combo lock on it.
I do really like this tongue box. It was the perfect addition to my teardrop build.


Boxes arrived in 3-4 days. I got used ones and was very happy I didn’t pay the full price. They work fine just a few dinges. I painted the inside white to see tools easier. The boxes are aluminum, seems very light duty. I wouldn’t step on top of it. When you close the top, the sides flex when pressure is put on the latch. I would have preferred a heavy steel, but needed a small box for the location and this was the only one I could find. For an ATV it might work ok. Overall pretty happy- I just installed so we’ll see how they hold up over time. Next time I would look for a heavy steel one. I paid for 2 used ones the price of one new... to me a new one would not be worth the price they are asking... just too light duty.


The DeeZee tongue box has been an ok box for storing all my off-road gear for my RZR and trailer items. Haven't had any water leaks or problems. Latch and lock have worked correctly. I mounted it on the tongue of my Aluma utility trailer that I use to haul my RZR. Most of the gear I have stored in it is pretty light weight. This box seems to be lite weight constructed; not sure how it would do for heavy items. One year using it and it still works and looks good on my trailer. This review template would not upload my photos??


I luv this thing... I use the fuel tank all the time.. the large capacity is awesome.. the toolbox is fantastic for capacity n the ease to reach.. U will not find a better combo on market today!


First, I like it a lot. There is lots of room inside, it meets my needs and I would buy it again because I think it is a very good value! Cons, Steel latch which means 3 months outside and it is already rusting. (I will eventually replace with a marine grade.) The unit is very strong on the outer sides, but not so much in the middle. I am 200 lbs and can stand on the outer sides of it, but I would not try to do so in the middle. (Note - Manufacturer does NOT recommend standing on it at all and I am not suggesting you do!) Depending on your specific trailer frame and what you intend to put in the tool box you may need to add some bottom support. You can see where I added a support bar in the front. If I was doing this mount over again, I would add a support or 2 in the middle because a couple of spare axle hubs and a bottle jack are causing it to sag significantly.


Well made box. Mounting hardware is woefully in adequate
Packaging is minimal and caused a slight dent.


Tool boxes work great .they hold all my roofing equipment . Leaving the bed of truck for hauling supplies . An the cab of the truck for hauling the crew .thank you so much for these boxes .


i returned the brackets and fashioned my own since one size didn't fit all.

the aluminum cargo bays (one on each side) are a great addition- glad i got them they are very handy and always in use.

heres a beauty shot of our caravan, passenger side, featuring a 5ft. dee zee cargo bay


Fits 2 group 31 batteries with room to spare. High quality box that looks and works great. The box does not come with battery hold downs, which I prefer because I could mount the batteries any way I wanted.


Fit perfect, easy mounting hardware.


Phenomenal product, great fit for my job trailer and allows the crew to stand on it if it is necessary to reach the top of the trailer from the front.


Save me a lot when I look for lowest price fuel.


Utility box on my camper. This will be a great place to store power cord,water hoses and blocks and a lot easier to get too.


Seems like a solid lightweight box. The latch and locking mechanism are solid and the hinge is reinforced which is nice. I also like that the gas strut for the lid has a sleeve so if any gear shifts it won't interfere or damage the strut.


great tool box. I actually had put in speakers. And mounted it to the rear end of my atv I will submit photos as well.


I bought a scratch and dent So I can’t give five star. It came as described with dents on the lid. But it still works fine.


Product does excatly what I want it to do Houses my propane Tanks and Battery with room to spare. Hopfully they won't get stollen again...


Nice box neatly welded and door sealed great and the brackets for this box fit perfect,thanks etrailer


Excellent product and etrailer is my ONLY go to shop for all my trailer/business needs !!


Nice looking trailer box! Fast delivery too!


Trailer box installed


Wish I knew how to download and send a picture to show my unique application. Mine is mounted on the front of an enclosed trailer and has a battery box installed inside, with room still to carry other essentials. I also plumed in tubing and wiring for a light switch and bright light. The box looks great, fit perfect, works perfect, and I love it. Thank You ETRAILER for a great product.


Very very well built. Excellent fit and finish. I needed a trailer toolbox with these particular dimensions so I bought this underbody box, but I mounted it like a chest (door facing straight up) and it has met my needs perfectly. We don't get a lot of rain in NM so water getting into the chest through the recessed handle area isn't a concern with it mounted in this the trailer is stored inside most of the time.


I needed a tool box for the deckover trailer with 16" wheels that I haul my yard service equipment on. The trailer is much lower than most commercial rigs(with 22.5") wheels and this was the only one that I could find that fit. It seems to be made as well as the bigger boxes and is light for its size. It has done everything that I need it to do and done it well for a year already.

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Expert Research:
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Employee Cole B
Installed by:
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Employee Alex H
Updated by:
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