Skip to content

Weather Guard Underbody Box Compact Gloss Black Aluminum 36.63X18X18 Model # 636-5-02

SKU 636-5-02
Original price $1,041.25
Original price $1,041.25 - Original price $1,041.25
Original price $1,041.25
Current price $833.00
$833.00 - $833.00
Current price $833.00
15+ In Stock - Order Now

Weather Guard Underbody Box Compact Gloss Black Aluminum 36.63X18X18 Model # 636-5-02

We recommend the Weather Guard Underbody Boxes for commercial and premium buyers. These boxes have the best track record for remaining water-tight and theft-resistant for many years.

Are the Weather Guard Underbody Boxes worth it? Our answer is yes, 100%. The length of service life these Weather Guard Under Bed Boxes provide quickly justifies the price. When you also consider the superior tool protection, buying a Weather Guard Underbody is a winning decision.

WG Underbody Installation PDF

WG Underbody Product Guide PDF


Style Under Bed Truck Box
Lock System 3-Point Latch
Install Time (hours) 1
Material Aluminum
Color Gloss Black
Construction Heavy Duty Welded
Durability Maximum
Key Alike On Request
Latch Mechanism Latch
Lid Construction Heavy Duty C-Channel Reinforced
Lid Profile Single
Mounting Location Under Bed
Opening Type Single Lid
Security Extreme
Warranty Limited Lifetime
Weather Strip Memory Resistant D-Shaped Ribbed
Latch Yes
Powder Coat Finish Yes
UPC 783965042048


Approx. Product Length (in) 36.63
Approx. Product Width (in) 18
Approx. Product Height (in) 18
Approx. Product Weight (lb) 46
Approx. Shipping Length (in) 37.125
Approx. Shipping Width (in) 18.82
Approx. Shipping Height (in) 18.56
Approx. Shipping Weight (lb) 46

Damage Free

Less Than 1% Damage Rate on Weather Guard Products

Made In The USA

Weather Guard Toolboxes Are Proudly Made In The USA

Chat With Us

The Most Knowledgeable Truck Bed Accessories Reps

The Best Prices

Our Out-The-Door Pricing Can't be beat.

The Weather Guard Underbody/Under Bed  Toolbox

The Weather Guard Underbody/Under Bed Toolbox

Under Bed Tool Boxes are designed for heavy-duty trucks and semi trucks to keep larger, heavier items and tools secure, yet easily accessible. The Under Bed tool box fits flatbed, platform or dump truck bodies. Under Bed boxes can also me mounted on other areas on trucks, flatbeds, and equipment. This American made brand uses the toughest materials to provide their customers with a tool box that will last a lifetime. If you look around any construction site, chances are you will see one if not many Weather Guard tool boxes.

Weather Guard Underbody/Under Bed Toolbox Exclusive Features

Weather Guard Underbody/Under Bed Toolbox Exclusive Features

- One of the strongest aluminum and steel underbody tool boxes in the industry.

- Aluminum boxes reduce truck tool box weight and protect against corrosion.

- Tool-less quick release doors adjust from 90 degree to 180 degree with QuickClips and no tools required.

- A full weather seal keeps the contents of the box dry and clean.

- ARMOR TUF® Powder Coat finish ensures years of dependability.

- Mounting hardware not included.

- Limited lifetime warranty ensures unparalleled quality.

Size, Material, and Finish to Fit Your Needs

Size, Material, and Finish to Fit Your Needs

Weather Guard offers a 24",30", 36", 48", and 60" long underbody tool box option to fit your needs.

These boxes are available in a durable diamond tread aluminum or a smooth steel. The Weather Guard underbody tool boxes are also available in different finishes including, gloss black, white and bright aluminum.

Locking Mechanism

Locking Mechanism

Drill Resistant Lock Core:

The drill resistant D-Ring lock core provides unmatched protection against break-ins and theft allowing valuable supplies to be left safe and protected.

Heavy-Duty Three-Point Latching System:

This latch designs pulls the door of the box tightly against the body of the box and the door seal. This secure latch design along with the high grade seal keeps out dust and moisture.

The Elite Promise

The Elite Promise

We promise to make it right 100% of the time. We'll take care of any damages or defects, no matter the issue. Just contact our highly-rated USA-based commercial customer service team. Know any purchase from comes with the industry's most comprehensive product & service guarantee.


Customer Reviews

Based on 1 review
John TenBrink
The Great Truck Box Review!

Nice product. Aluminum is about .100 thick (with paint) very strong. Chains allow the door to open to about 115 degrees. Will go to 180 degrees with more chain. Secure locking system. Well built, I bought 4 boxes ( 2-36” and 2-30”) 1 of the 30” boxes had a minor alignment issue with the door. I massaged a couple corner welds with an angle grinder, solved the problem. The chains rattle a lot when the boxes are empty. Solved that with 1/2 inch water pipe insulation. Handles also rattle. Solved that with a couple zip ties on each handle. Probably wouldn’t notice the rattling if these were mounted underbody. I mounted these boxes on a rack I built on top of my bed on my Silverado 2500. They are going to provide great storage for camping. Overall a very good product, great service from Elite Truck.