Keep tools locked down and off the bed floor with the Weather Guard 174-6-04 lo-side truck tool box. This 56" box wears a gunmetal gray ARMOR TUF finish over aluminum diamond plate. Gunmetal gray sits between bright aluminum and blacked-out, a modern metallic tone that looks factory-fresh next to today's gray and silver trucks. It mounts on top of one bed side rail so it rides low, preserves your rear visibility and leaves the bed floor open for sheet goods and cargo, and it locks down 4.0ft³ of weather-sealed storage behind the tamper-resistant 1Key UltraLock push-button lock. Aluminum keeps it lighter than a comparable steel box, so it will not eat into your payload.
What's Included:
174 Series 56" Lo-Side aluminum truck tool box in gunmetal
1Key UltraLock keyed cylinder with recessed red push-button latch
Under-rail mounting clamps and hardware for a no-drill install
Gas strut for controlled lid lift
Removable tray
Full-perimeter weather seal, pre-installed
Drain plug
Weather Guard installation instructions
Features
56" of Secure Side-Rail Storage At 56" long the 174-6-04 runs along one bed side rail and gives you 4.0ft³ of lockable, organized storage while keeping the rest of the bed floor clear. It carries a full day of hand and power tools without taking over the bed.
Gunmetal Diamond Plate Finish A Gunmetal Gray ARMOR TUF powder coat gives the aluminum diamond plate a modern, metallic-gray tone that resists corrosion and fading. It is an easy match for gray, silver and blacked-out trucks that want something other than plain bright aluminum.
Modern Metallic Tone Gunmetal gray is the understated, modern pick, and it blends in cleanly with gray, silver, charcoal and black trucks. It gives you something more distinctive than bright aluminum without going fully blacked-out.
Enhanced Tie-Downs and 12V Access Enhanced tie-down buckles give extra clearance for universal or multiple straps so you can lash cargo down on the lid, and a 12V access point supports electrical upfits when you add them.
1Key UltraLock Security A tamper-resistant lock pairs a keyed cylinder with a recessed red push-button that sits flush when locked, giving you a quick visual cue your gear is secured. The 1Key system lets you code multiple boxes on a truck or a whole fleet to one key.
Lightweight Welded Aluminum Build The 174-6-04 is built from welded aluminum diamond plate, so it resists corrosion and dents while staying lighter than a comparable steel box. It is made in the USA and backed by a Weather Guard Limited Lifetime Warranty against defects.
Reinforced Body, Automotive-Grade Hardware Weather Guard specifies a heavy-duty welded body for the 174-6-04, 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.
● Usually yes, measure your side rail length first
Mid-size
-
Ranger, Colorado, Tacoma, Frontier
● Often fits, measure the usable rail length before ordering
Fit guidance: Lo-Side boxes mount on top of one bed side rail, so they keep the bed floor open and leave the rest of the bed clear for cargo. At 56" long this box fits most full-size 6'6" and 8' beds with room to spare, fits many full-size 5'6" short beds, and fits a lot of mid-size trucks. It mounts on either the driver or passenger side rail. Always measure your usable bed side rail length and confirm clearance behind the cab before ordering.
Specifications
Series: 174 Series Lo-Side
Style: 56" single-lid side-mount (Lo-Side)
Storage Capacity: 4.0ft³
Exterior Dimensions: about 56"L x 17"W x 13"H
Material: Welded aluminum diamond plate
Finish: Gunmetal Gray ARMOR TUF powder coat
Lid: Reinforced, opens to about 90 degrees, gas strut
Lock: 1Key UltraLock keyed cylinder with recessed red push-button, tamper-resistant, keyed alike
Weather Seal: Full-perimeter, multi-ridge weather seal
Mounting: Sits on top of one bed side rail, under-rail clamps and hardware included, no drilling required
Type: Side-rail mount, clamp-in with no drilling · Time: About 20 to 30 minutes · Tools: Socket or wrench set and a tape measure; no drill needed with the included under-rail clamps · Difficulty: Easy, best done with two people because of the length
Set the box on top of one bed side rail and position it front to back, then hook the included clamps under the rail lip and tighten the hardware evenly so the box sits flat and the lid seals. Because the box is long, have a second person help lift and steady it while you clamp it down. Follow the Weather Guard installation instructions for exact clamp placement and torque.
Watch the installation walkthrough:
Resources
Everything you need for your Weather Guard 174 Lo-Side Truck Tool Box, 56" Gunmetal Aluminum Diamond Plate, 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.
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
What bed size do I need for the 174-6-04?
This box is 56" long and mounts on one bed side rail, so it fits most full-size 6'6" and 8' beds easily, fits many 5'6" short beds, and fits a lot of mid-size trucks. Measure your usable side rail length and confirm clearance behind the cab before ordering.
What is the finish on the 174-6-04?
It is aluminum diamond plate finished in Gunmetal Gray ARMOR TUF powder coat, an understated metallic gray. It resists corrosion and fading and pairs cleanly with gray, silver and blacked-out trucks.
What trucks does gunmetal look best on?
Gunmetal gray looks factory-right on gray, silver, charcoal and black trucks, and it is a clean step up from plain bright aluminum. Choose it when you want a modern, understated look rather than a fully blacked-out box.
Does it require drilling to install?
No. The box ships with under-rail clamps and hardware, so it mounts on top of either bed side rail without drilling into your truck. Most installs take about 20 to 30 minutes, and a second person makes the longer box much easier to lift and hold while you clamp it down.
How does it lock?
It uses the Weather Guard 1Key UltraLock, a tamper-resistant design that pairs a keyed cylinder with a recessed red push-button that sits flush when locked. The 1Key system also lets you code multiple boxes on a truck or an entire fleet to a single key.
Which side of the bed does it mount on?
You can mount it on the driver or passenger side rail, whichever suits your loading and access. It sits low on the rail, so it keeps the bed floor open and your rear view clear either way.
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 174 Lo-Side Truck Tool Box, 56" Gunmetal Aluminum Diamond Plate (174-6-04)
DECKED Tool Box, Full-Size Truck Crossbed, 71.7" x 25.5" x 16", 300 lb Lid / 800 lb Tub, Black (DTB2-BLK)
Weather Guard 180 Low Profile Lo-Side Truck Tool Box, 41 in Bright Aluminum Diamond Plate (180-0-04)
Weather Guard 631 Underbed Truck Tool Box, 30 in Bright Aluminum, 5.4 cu ft (631-0-02)
