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Last updated: September 2026
Dee Zee is a truck accessory brand best known for bright aluminum tread-plate (“Brite-Tread”) running boards and toolboxes. Its range also covers nerf bars, tailgate assists, bed mats, cab racks and trailer tongue boxes. Some Dee Zee parts are made for one truck, while toolboxes and trailer boxes fit by size. This guide explains the Dee Zee lines and shows listings we could verify, with the fitment each title states.
How we chose: this guide is based on Dee Zee’s product lines and the details in each Amazon listing title (part number, truck, size). We haven’t hands-on tested these parts. Several Dee Zee listings show only a part number, not a truck. For those, look up the DZ part number in Dee Zee’s fit guide before you order.
Quick Guide: Dee Zee Product Lines
| Line | What it is | How it fits |
|---|---|---|
| Tailgate Assist | Damper that slows the tailgate as it drops | Truck-specific (listed in the title) |
| Heavyweight bed mats | Rubber mat for the truck bed floor | Truck and bed specific |
| Red Label toolboxes | Crossover boxes and utility chests | By size: measure your bed |
| Triangle trailer boxes | Tongue-mounted boxes for A-frame trailers | By size: measure your trailer tongue |
| Brite-Tread running boards | Aluminum tread-plate boards | Check the DZ part number |
| Nerf bars and Hex side steps | Tube steps and single cast steps | Check the DZ part number |
| Cab rack | Rack behind the cab (headache-rack style) | Check the listing’s fit notes |
Dee Zee Tailgate Assist
A tailgate assist is a small damper that lets the tailgate lower slowly instead of dropping hard. It saves the hinges and cables, and it’s safer around kids and pets. Each Dee Zee assist is made for specific trucks, and the fit is right in the listing title. For other brands, see our Ranger tailgate assist and Silverado tailgate assist guides.
Dee Zee DZ43204 Tailgate Assist for Ford F-150
Listed for 2015-current Ford F-150 trucks.
- This tailgate assist fits 2015-current Ford F150.
- NEW and IMPROVED – We have improved the nutsert. You no longer have the little bottle of blue thread lock to mess with. …
- Easy to use. The Dee Zee tailgate assist makes the use of your tailgate an ease. By simply installing this on your truck…
Dee Zee DZ43301 Tailgate Assist for Ram
Listed for 2009-2018 Ram 1500, 2019+ Ram 1500 Classic and 2010+ Ram 2500/3500. Note that the new-body 2019+ Ram 1500 isn’t on this list, only the Classic.
- Dee Zee DZ43301 RAM Tailgate Assist / ‘09-‘18 RAM 1500 / 2019+ RAM 1500 Classic / 2010+ RAM 2500/3500
- NEW and IMPROVED – We have improved the nutsert and it’s ready to go out of the box! The nutsert comes with thread lock …
- The Dee Zee Tailgate Assist makes the use of your tailgate an ease. The simple device allows you release the tailgate wi…
Dee Zee DZ43207 Tailgate Assist for Ford Maverick
Listed for 2022-current Ford Maverick.
- This tailgate assist fits 2022-current Ford Maverick..Fit Type: Vehicle Specific
- Easy to use. The Dee Zee tailgate assist makes the use of your tailgate an ease. By simply installing this on your truck…
- By adding the heavy-duty tailgate assist to your truck will ease the strain on the cables and hinge point by not free fa…
Who this is NOT for: trucks that already have a factory damped or power tailgate. Check your tailgate before buying.
Dee Zee Bed Mats
Dee Zee’s heavyweight bed mats are thick rubber mats that cushion cargo, cut sliding and protect the bed floor. They’re truck and bed-length specific. Compare more options in our best truck bed mat guide.
Dee Zee DZ87027 Heavyweight Bed Mat for Ford Maverick
Dee Zee DZ86963 Bed Mat for Toyota Tacoma
Tacoma bed lengths vary by generation and cab, so match your bed length on the listing before you order.
- Rubber / Floor Liner/Bedmat Only
- Designed with quality and comfortable in mind
- Fits various makes and models
Dee Zee Red Label Toolboxes
Red Label is Dee Zee’s toolbox line. Toolboxes fit by size rather than by truck, so measure first: the inside width between your bed rails, the rail-to-rail outside width, and the depth your bed allows. If you run a tonneau cover, check that the box and cover can work together. See our best crossover truck toolbox guide for other brands.
Dee Zee DZ8170D Red Label Crossover Tool Box
A crossover box sits across the bed rails right behind the cab, so you keep most of the bed floor free. It’s the classic pickup toolbox layout.
- Non-Rusting 0.056 Brite-Tread Aluminum
- Extra Deep Storage To Fit More Gear
- Double V-Pan Lid Stiffener Creates Strength And Rigidity
Dee Zee DZ8537B 37″ Red Label Utility Chest
A utility chest sits on the bed floor instead of the rails. The 37″ size in the listing makes it easy to plan around. It’s a good fit if a crossover box would block a rack or cover.
- Non-Rusting 0.056 Brite-Tread Aluminum w/ Protective Gloss Black Powder Coat
- Contractor Grade Stainless Steel Paddle Handle Latch
- Closed Cell Foam Gasket Helps Resist The Elements From Getting Inside The Box
Who this is NOT for: short-bed owners who need the full floor for hauling. A floor chest takes up bed length. See underbody toolboxes instead.
Dee Zee Triangle Trailer Tool Boxes
Triangle boxes mount on the A-frame tongue of a trailer, in front of the bed or camper. Measure the angle and length of your tongue before you order, and keep the box clear of the jack and the coupler.
Dee Zee DZ91717P Poly Triangle Trailer Box
A plastic (poly) triangle box. The listing gives 36 x 18.75 x 18 inches and 25 lbs.
- Rigid Plastic Frame Resists Warping
- Double Wall Lid For Extra Support
- Classic Brite-Tread Pattern
Dee Zee DZ92716 Brite-Tread 45-Degree Triangle Trailer Tool Box
The aluminum tread-plate version, for a 45-degree trailer tongue per the listing title.
- Add lockable storage to your trailer tongue for straps, wheel chucks, dry bags, or supplies
- Non-Rusting .056 Brite-Tread Aluminum
- Lockable Stainless Steel Paddle Handle with Set of Keys
Dee Zee Running Boards, Nerf Bars and Side Steps
These listings show a DZ part number but not the truck, so look up the part number in Dee Zee’s fit guide first. Not sure which style you want? See running boards vs nerf bars vs step bars.
Dee Zee DZ2053 Brite-Tread Aluminum Running Boards
Full-length aluminum tread-plate boards, the look Dee Zee is known for.
- Non-Rusting Brite-Tread Aluminum
- Diamond Plate Texture Provides Excellent Footing
- Custom Fit Application Ensures Quick And Easy Installation
Dee Zee DZ372539 4″ Oval UltraBlack Nerf Bars
4″ oval tubes in Dee Zee’s UltraBlack finish. Oval tubes give a wider standing surface than round ones.
- Durable 14-gauge steel construction
- Protective UltraBlack Finish
- Molded Plastic Step Pads on a Widened 4″ Step Area
Dee Zee Hex Series Cast Side Step (DZ66321CTB)
A single cast step rather than a full-length board. It’s handy where you only need one foothold, such as reaching into the bed.
- Made of Light Weight Aluminum
- Integrated Channel to Adjust the Position of the Drop Steps for Customized Placement
- Custom Fit Bracket Kits – Sold Separately
For more brands and exact truck fits, see our best running boards for trucks and Rough Country truck accessories guides.
Dee Zee Cab Rack
A cab rack mounts behind the cab, headache-rack style. It helps protect the rear window from shifting cargo and gives you a spot to carry long items or mount lights. Check the listing’s fit notes for your truck and whether it clears a toolbox or tonneau cover. See our best headache rack guide for more options.
- Item Package Dimension: 73.0L x 26.0W x 12.0H inches
- Item Package Weight – 34.0 Pounds
- Item Package Quantity – 1
How to Order the Right Dee Zee Part
- Truck-specific parts (tailgate assists, bed mats, steps): match year, make, model, cab and bed length.
- Size-based parts (toolboxes, trailer boxes): measure your bed or trailer tongue and compare with the box dimensions.
- Part number only? Look up the DZ number in Dee Zee’s fit guide before ordering.
- Check what’s included: brackets, hardware or mounting kits are sometimes sold separately.
Prefer an electric step? See our AMP Research PowerStep guide.
Comparing tongue boxes across brands? See our trailer tool box guide.
Frequently Asked Questions
What is Dee Zee known for?
Dee Zee is best known for Brite-Tread aluminum tread-plate running boards and toolboxes. It also makes nerf bars, tailgate assists, bed mats, cab racks and trailer tongue boxes.
Do Dee Zee toolboxes fit every truck?
No. Toolboxes fit by size, so measure your bed rails and bed depth, then compare them with the box dimensions on the listing.
What does a Dee Zee tailgate assist do?
It slows the tailgate as it opens, so it doesn’t slam down. Each one is made for specific trucks, listed in the title.
How do I know which Dee Zee running boards fit my truck?
Many Dee Zee listings show only a DZ part number. Look that number up in Dee Zee’s fit guide, or check the listing’s compatibility section, before you order.
Is a crossover toolbox or a utility chest better?
A crossover box sits on the bed rails and leaves the floor free. A utility chest sits on the floor and leaves the rails free for racks or covers. Pick based on what else you use in the bed.
The Bottom Line
Shop Dee Zee by fit type. Truck-specific parts like tailgate assists and bed mats list the truck in the title. Toolboxes and trailer boxes fit by size, so measure first. Running boards and nerf bars need a part-number check. Confirm the fit and check the current price on each listing above before you buy. More ideas are in our truck accessories guide.
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