Aluminum Underbody Truck Tool Box - 18x18x48
18x18x48 Underbody Toolbox - Heavy Duty Aluminum
Maximize storage on your flatbed, trailer, or work truck without weighing down your chassis with our commercial grade underbody toolbox. Our 18x18x48 underbody toolbox delivers 9 cubic feet of secure storage in a lightweight, corrosion-resistant package. Built from extra-thick 0.125" aluminum, this box is engineered to withstand road grime, salt, and heavy commercial use while keeping your gear dry and accessible.
Whether you're outfitting a flatbed, semi-truck, or dump trailer, our design mounts easily to your chassis to add functionality to your unused space.
Key Features
-
HD Aluminum Construction:Â Built from 0.125" (1/8-inch) thick aluminum for superior strength to weight ratio (double the industry standard)
- Weather Ready Finish: Premium matte black powder coat offers extra protection again corrosion and road debris.
- Vibration Resistant Hinges:Â Features four-piece stainless steel huck-bolted hinges that won't rattle loose over time.
- 90 Degree Dropdown Door:Â Store and access your equipment easier with a full dropdown door opening 90 degrees.
- Premium Door Cables:Â marine-grade, vinyl coated steel cables that resist road salt and corrosion.
- Weather-Sealed:Â Automotive-grade one piece gasket keeps water and dust out of your tools.
- Secure Locking: 2x Die-cast heavy duty T-Handle latches (adjustable with key lock) for maximum security.
- Precision Built:Â Robotically welded seams ensure structural consistency and durability.
Specifications
| Height | 18" |
| Depth | 18" |
| Length | 48" |
| Material | 0.125" Aluminum |
| Storage Capacity | 9 Cubic Feet |
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Original: $887.00
-65%$887.00
$310.45


Description
18x18x48 Underbody Toolbox - Heavy Duty Aluminum
Maximize storage on your flatbed, trailer, or work truck without weighing down your chassis with our commercial grade underbody toolbox. Our 18x18x48 underbody toolbox delivers 9 cubic feet of secure storage in a lightweight, corrosion-resistant package. Built from extra-thick 0.125" aluminum, this box is engineered to withstand road grime, salt, and heavy commercial use while keeping your gear dry and accessible.
Whether you're outfitting a flatbed, semi-truck, or dump trailer, our design mounts easily to your chassis to add functionality to your unused space.
Key Features
-
HD Aluminum Construction:Â Built from 0.125" (1/8-inch) thick aluminum for superior strength to weight ratio (double the industry standard)
- Weather Ready Finish: Premium matte black powder coat offers extra protection again corrosion and road debris.
- Vibration Resistant Hinges:Â Features four-piece stainless steel huck-bolted hinges that won't rattle loose over time.
- 90 Degree Dropdown Door:Â Store and access your equipment easier with a full dropdown door opening 90 degrees.
- Premium Door Cables:Â marine-grade, vinyl coated steel cables that resist road salt and corrosion.
- Weather-Sealed:Â Automotive-grade one piece gasket keeps water and dust out of your tools.
- Secure Locking: 2x Die-cast heavy duty T-Handle latches (adjustable with key lock) for maximum security.
- Precision Built:Â Robotically welded seams ensure structural consistency and durability.
Specifications
| Height | 18" |
| Depth | 18" |
| Length | 48" |
| Material | 0.125" Aluminum |
| Storage Capacity | 9 Cubic Feet |
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