Put dead space to work with the Weather Guard 173-5-04 wheel well truck tool box for the passenger side. This passenger-side box mounts over the rear wheel well and uses the open bed space above and behind the tire for 3.4ft³ of secure, out-of-the-way storage, so it keeps hand tools and small parts organized without giving up your main bed floor. It is built from gloss black aluminum diamond plate with an EXTREME PROTECTION dual-stage rotary latch that is Fleet-Ready 1Key UltraLock compatible, so your gear stays protected on the jobsite. This is the redesigned Wheel Well box with a memory-resistant D-shaped weather seal and 12V access. Truck owners often call this a Weather Guard pork chop box because it tucks into the wheel well arch.
What's Included:
Passenger-side Wheel Well aluminum truck tool box, gloss black
Redesigned Wheel Well, Uses Wasted Space The 173-5-04 is the redesigned Wheel Well box, shaped to sit over the rear wheel well and use the open bed space above and behind the tire for 3.4ft³ of locking storage without giving up your main bed floor. The lower, wider body keeps tools handy and out of the way.
Passenger-Side Fit This box is built specifically for the passenger side of the bed, so it matches the wheel-well contour and mounts cleanly. Pair it with the opposite-side box for balanced storage on both sides of the bed.
Gloss Black Diamond Plate A Gloss Black ARMOR TUF powder coat covers the aluminum diamond-plate body to fight corrosion, salt and fading while giving your bed a clean, blacked-out look. Aluminum keeps it light and rust-free for the long haul.
EXTREME PROTECTION Lock, 1Key Compatible An automotive-grade EXTREME PROTECTION dual-stage rotary latch resists prying and tampering, and the box is Fleet-Ready 1Key UltraLock compatible so you can key it to your other Weather Guard boxes.
D-Shaped Weather Seal and 12V Access A memory-resistant D-shaped weather seal keeps moisture and dust out, the cover opens to about 90 degrees for easy access, and a 12V access port supports power tools and electrical accessories.
Built and Backed for Work The 173-5-04 is made in the USA and backed by a Weather Guard Limited Lifetime Warranty against defects in materials and workmanship, so it is built to work as hard as you do.
Reinforced Body, Automotive-Grade Hardware Weather Guard specifies a heavy-duty welded body for the 173-5-04, with a C-channel reinforced front panel and a heavy-duty C-channel reinforced lid, so the box stays square when it is loaded and when someone stands on the lid. The latch is an automotive dual-stage rotary mechanism, the same style a truck door uses, so it pulls the lid down onto the seal instead of relying on a friction catch. A welded gas strut shield keeps loose tools from knocking the strut mount out of line. The D-shaped ribbed weather strip is memory resistant, so it springs back after years of closing rather than taking a set and letting water track in.
✓ Yes, passenger side, mounts over the rear wheel well
Mid-size and compact pickups
-
● Check bed and wheel-well clearance first, designed for full-size beds
Opposite side of the
-
✗ No, this box is built for the passenger side; order the matching opposite-side model for the other side
Fit guidance: Wheel-well, or pork chop, boxes mount inside the bed over the rear wheel well and use the open space above and behind the tire, so they leave your main bed floor clear. This box is built for the passenger side of a full-size pickup. Always measure the space around your wheel well and confirm clearance with any bed cap or cover before ordering. Order the matching opposite-side model if you want storage on both sides.
Overall Size (Weather Guard published): 46-5/8"L x 15-3/8"W x 16-3/8"H
Shipping Size: 49-1/2"L x 15"W x 20-1/4"H, 42 lb
UPC: 783965072922
Weight: About 41.5 lb (shipping)
Warranty: Limited Lifetime
Made In: USA
Installation
Type: Over-the-wheel-well mount · Time: About 30 to 45 minutes · Tools: Socket or wrench set, tape measure, and a drill with bits if your application calls for it · Difficulty: Easy to moderate, one person can handle it
Set the box over the rear wheel well, position it, then secure it with the included hardware following the Weather Guard instructions. Some applications use existing bed holes while others call for drilling; seal any drilled holes to prevent rust. Confirm clearance with any bed cap or cover before final tightening.
Watch the installation walkthrough:
Resources
Everything you need for your Weather Guard 173 Wheel Well Truck Tool Box, Passenger Side Gloss Black Aluminum, in one place.
Warranty. Limited Lifetime Warranty from Weather Guard against defects in materials and workmanship.
Free shipping. This item ships free to the lower 48 states. Because it is an oversized item, it ships by freight and typically arrives in 3 to 7 business days.
Inspect on delivery. Please inspect the packaging before signing. If you see any damage, note it on the delivery receipt and contact us right away, and we will make it right.
About Weather Guard
Weather Guard has built professional-grade truck and van storage in the USA for decades and is the storage brand tradespeople, contractors, and fleets reach for first. Its steel and aluminum tool boxes, ladder racks, and van-interior systems are engineered to survive daily jobsite abuse and keep expensive tools secure and organized.
Known for weather-tight seals, patented locking systems, and heavy-gauge construction, Weather Guard products mount cleanly on work trucks and vans and stand up to years of hard use. The lineup spans crossover, low-side, and saddle truck boxes, ladder and van racks, drawer units, and fuel and utility tanks, so an entire work vehicle can be outfitted from one brand.
Backed by a strong manufacturer warranty and US-based support, Weather Guard is the name pros trust to protect the tools their livelihood depends on.
Authorized Weather Guard dealer. Prestige Truck is an authorized dealer of Weather Guard, so every tool box, rack and storage product you buy is 100% genuine and factory-new, covered by the full Weather Guard manufacturer warranty, and backed by our own US-based support team.
Compare The Range
How this compares to similar models
The closest alternatives side by side, so you do not have to keep tabs open.
Model
This OneWeather Guard 173 Wheel Well Truck Tool Box, Passenger Side Gloss Black Aluminum (173-5-04)
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.
Protect Your Gear and Your Reputation
Weather Guard's own film on why a working truck earns its keep from what is bolted to it. It frames the boxes, racks and bed equipment as the difference between arriving ready and arriving short, which is the thing a customer actually notices.
It is a short manufacturer-made overview rather than a product demo, so watch it for the why rather than the how. If you are outfitting a truck from scratch it is a useful place to start before you pick individual part numbers.
Frequently Asked Questions
Straight answers on specs, fit and support
Will this fit my truck?
The 173-5-04 is a passenger-side wheel-well box built for full-size pickup beds. It mounts over the rear wheel well, so measure the space around your wheel well and confirm clearance with any bed cap or cover before ordering.
Is this for the driver or passenger side?
This model is the passenger-side box. If you want storage on both sides of the bed, add the matching opposite-side model so the pair matches your wheel-well contours.
How big is it and how much does it hold?
It gives you 3.4ft³ of storage, sized for hand tools, power tools and small parts you want handy but out of the way. The exterior measures about 46-5/8"L x 15"W x 16"H, and it uses the open bed space above and behind the tire so you do not lose your main bed floor.
How does it lock, and is it 1Key compatible?
It uses an automotive-grade EXTREME PROTECTION dual-stage rotary latch that resists prying, and it is Fleet-Ready 1Key UltraLock compatible so you can key it to your other Weather Guard boxes.
What is it made of and how is it finished?
It is built from aluminum diamond plate with a Gloss Black ARMOR TUF powder coat, so it stays light and rust-free while giving your bed a clean, blacked-out look. A memory-resistant D-shaped weather seal keeps out moisture and dust, and it adds a 12V access port.
Is it covered by a warranty?
Yes. The 173-5-04 is made in the USA and backed by a Weather Guard Limited Lifetime Warranty against defects in materials and workmanship.
Mark K.
Look is great. 100 lbs
Look is great. 100 lbs lighter than my 2nd pick. Lid lock and opening are smooth. Only minor knock I give is the the tie down hooks are hard to install - thinking I should have done them before installing.
DECKED Tool Box, Full-Size Truck Crossbed, 71.7" x 25.5" x 16", 300 lb Lid / 800 lb Tub, Black (DTB2-BLK)
Mark
A must have
I really like this mat. I was apprehensive at first but, the mat does a great job of keeping things from sliding around without having to secure it. perfect fit. But i think i will be adding some short screws to secure the mat to the DECKED system.
DECKED Battle Mat, Full-Size Long Drawer System 6'4" to 6'9" Bed, Recycled Nyracord Rubber, Black (A0075-BMXL-BLK)
Roy L.
I never knew how much I needed this
As with all BAK covers, the quality is amazing. What I didnt fully appreciate until installing was the ease of opening - especially in a lifted truck. No more need to find the right handhold. Just roll it back with a single hand. Its also great to see out of my rear window when fully open - something you lose with the fold back covers. Customer service is awesome. I has an installation question and the representative stayed on the line as I adjusted an alignment to ensure I did it properly.
BAK Revolver X4s Hard Roll-Up Tonneau Cover for 2022-2026 Toyota Tundra (6'7" Bed)
Jeffrey P.
Better then expected.
Searched for about 6 months to find the tonneau cover. I really wanted the security of a hard top without sticking above the bed rails it checked those boxes. I also did not want to drill my truck bed. The install was super simple my wife and I had it on the truck in about a half an hour.
BAKFlip MX4 Hard Folding Tonneau Cover for 2003-2025 Ram 1500 / 2500 / 3500 (8' Bed)
Joseph A.
The toolbox is nice. I
The toolbox is nice. I think Ill get a lot of years of service out of it. I like how the lid opens and the tie downs are a nice touch. It seems to be well built. And tough. Im pleased with my purchase and would buy another one.
DECKED Tool Box, Full-Size Truck Crossbed, 71.7" x 25.5" x 16", 300 lb Lid / 800 lb Tub, Fender Dirt (DTB2-TAN)
Weather Guard 173 Wheel Well Truck Tool Box, Passenger Side Gloss Black Aluminum (173-5-04)
DECKED Tool Box, Full-Size Truck Crossbed, 71.7" x 25.5" x 16", 300 lb Lid / 800 lb Tub, Black (DTB2-BLK)
UWS 36" Single-Door Underbody Tool Box, Gloss Black (EC40092)
UWS 69" Secure Lock Crossover Truck Tool Box with Lid Rail, Low Profile, Gloss Black (SL-69-LP-BLK-R)
