Keep long tools locked down and off the bed floor with the Weather Guard 164-0-04 Lo-Side truck tool box. This 87" box mounts on top of one bed side rail in bright aluminum diamond plate, so it rides low, preserves your rear visibility and leaves the bed floor wide open for sheet goods and cargo. With 7.0ft³ of weather-sealed space and the tamper-resistant 1Key UltraLock, it is built for full-size long-bed work trucks.
What's Included:
164 Series 87" Lo-Side aluminum truck tool box
1Key UltraLock keyed cylinder with recessed red push-button latch
Under-rail mounting clamps and hardware for a no-drill install
Gas struts for controlled lid lift
Removable tray
Full-perimeter weather seal, pre-installed
Drain plug
Weather Guard installation instructions
Features
87" of Long-Bed Storage At 87" long, the 164-0-04 runs most of a full-size 8' bed to swallow long levels, pipe and power tools that will not fit a shorter box. It puts a lot of secure, organized storage along one side rail while keeping the rest of the bed clear.
Bright Aluminum Diamond Plate The welded aluminum body wears a clear ARMOR TUF coat over classic bright diamond-plate tread. It resists corrosion and dents, cleans up easily and gives your work truck a sharp, traditional look that holds up season after season.
Low-Profile Side-Rail Mount The Lo-Side design sits on top of one bed side rail and stays low, so it does not block your rear window view and leaves the bed floor open for hauling. It is the easy way to add locking tool storage without sacrificing cargo space.
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.
Gas Struts and Reinforced Lid Gas struts control how the lid opens and closes for smooth, one-handed access, and steel supports keep the reinforced lid rigid with little flex. A full-perimeter weather seal shuts out rain, dust and debris to protect your tools.
Built and Backed for Work A removable tray keeps small parts organized up top while longer items ride below, and a drain plug lets any moisture escape. The 164-0-04 is made in the USA and backed by a Weather Guard Limited Lifetime Warranty.
Reinforced Body, Automotive-Grade Hardware Weather Guard specifies a heavy-duty welded body for the 164-0-04, 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.
Fitment & Compatibility
Truck Class
Bed Length
Example Trucks
Fit
Full-size
8' (long bed)
F-150 and Super Duty, Silverado/Sierra 1500 to 3500, Ram 1500 to 3500
✓ Yes, requires an 8' long bed
Full-size or standard
5'6", 6'6" (short bed)
-
✗ No, the 87" box is too long
Mid-size and compact
-
Ranger, Colorado, Tacoma, Frontier
✗ No, not designed for these trucks
Fit guidance: Lo-Side boxes mount on top of one bed side rail and run most of the length of the bed, so the low profile keeps your bed floor open and does not block the rear window. At 87" long this box needs a full-size 8' long bed. It will not fit standard 6'6" or short 5'6" beds. It can mount on either the driver or passenger side rail. Always measure your bed side rail length and confirm clearance before ordering.
Specifications
Series: 164 Series Lo-Side
Style: 87" single-lid side-mount (Lo-Side)
Storage Capacity: 7.0ft³
Exterior Dimensions: About 87-3/4"L x 16-1/2"W x 13-1/4"H
Overall Size (Weather Guard published): 87"L x 17"W x 13"H
Shipping Size: 89"L x 19"W x 14"H, 65.5 lb
UPC: 783965071253
Weight: About 74 lb
Warranty: Limited Lifetime
Made In: USA
Installation
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 87" 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 164 Lo-Side Truck Tool Box, 87" Bright 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.
Model
This OneWeather Guard 164 Lo-Side Truck Tool Box, 87 in Bright Aluminum Diamond Plate
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 length do I need for the 164-0-04?
This box is 87" long, so it needs a full-size pickup with an 8' long bed. It will not fit a standard 6'6" or short 5'6" bed. It mounts on top of one bed side rail, so measure your side rail length and confirm clearance before ordering.
Which side of the bed does it mount on?
You can mount it on either the driver or passenger side rail, whichever works best for your loading and access. Because it is a low-side box, it stays low on the rail and keeps the bed floor open and your rear view clear.
Does it require drilling to install?
No. The box ships with under-rail clamps and hardware, so it mounts without drilling into your truck. Most installs take about 20 to 30 minutes, and a second person makes the 87" 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.
How big is it and what is included?
The exterior measures about 87-3/4" long by 16-1/2" wide by 13-1/4" high with 7.0ft³ of storage, and it weighs about 74 lb. It is built from bright aluminum diamond plate with a clear ARMOR TUF finish, and it includes a removable tray, gas struts, a full weather seal and a drain plug.
Is it covered by a warranty?
Yes. The 164-0-04 is made in the USA and backed by a Weather Guard Limited Lifetime Warranty against defects in materials and workmanship.
Mark K.
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Weather Guard 164 Lo-Side Truck Tool Box, 87 in Bright Aluminum Diamond Plate
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