Description
Description
Brute Underbody Truck Box – Single Door
When underbody storage is part of your daily workflow, it needs to be tough, secure and built to handle the long haul. The Brute Single Door Underbody Truck Box delivers commercial-grade durability with clean, installer-friendly design — giving you dependable storage that works as hard as your truck does.
Whether you’re running service calls or managing a full build, this box helps you take control of your gear and keep your mobile workspace dialed in. Efficiency on wheels starts here.
Built Heavy Where It Counts
- .100" thick diamond tread aluminum construction for serious strength without unnecessary weight
- .125" thick smooth aluminum bottom corner reinforcement for added durability in high-stress areas
- Full wrap, one-piece body design for structural integrity and long-term performance
- Welded gussets in each corner of the door frame to prevent sag and frame flex
This is professional-grade construction designed for real jobsite abuse — not light-duty storage.
Secure and Built to Last
- Strattec high-quality key cylinder for dependable locking performance
- Free-turning handle when locked to help resist forced entry
- Three-point latches standard on 36 in, 48 in and 60 in models for added security
- Full HS aluminum lock cover protection
- Stainless steel bolted hinge for long-term reliability
Weather-Ready Design
- Genuine Trim-Lok bulb seal to help keep out water, dust and road grime
- Overhead rain gutter to channel moisture away from the door opening
Your tools stay protected — even when the weather doesn’t cooperate.
Fit It to Your Build
- Available in multiple sizes to match your chassis and storage needs
- Door style options: drop-down door, swing door or barn door
- Finish options: standard aluminum or textured matte black
However you spec your truck, this box is ready to integrate cleanly into your setup. Confidently customize your rig and build storage that supports your workflow — not slows it down.
For the good of the trades. Work in trucks.
Product Specifications
Product Specifications
Vehicle Fitment
Vehicle Fitment
Install Details
Install Details

PRODUCT VIDEOS
PRODUCT VIDEOS
Where Here to Help!
Have a question or having trouble making a decision about what product is best for your vehicle and needs? Give our experienced customer service a call!
What shipping methods are available?
Shipping methods vary depending on the item. Many heavy or oversized products ship via LTL freight to help prevent damage in transit, while smaller items ship parcel; and some parcel orders can even be upgraded to freight for added protection. Many products also ship free, and your total shipping cost will always be shown at checkout before payment.
What payment methods do you accept?
We accept all major credit cards along with Apple Pay, Google Pay, PayPal, Shop Pay, and Shop Pay Installments. Government agencies, municipalities, and large fleet customers can also pay via purchase order with approved terms—just contact our customer service team before placing your order.
How long will delivery take?
Most orders ship within 1 business day from one of our warehouse locations. Typical transit times are 1-3 business days for parcel shipments and 3-5 business days for LTL freight, though delivery times may vary based on your location and carrier conditions. If an item has an extended lead time, it will be clearly noted on the product page.
What is your return policy?
Most unused items can be returned within 60 days of purchase. Every order is also backed by our Upfit Shield Guarantee for added peace of mind. For full details, including return eligibility and warranty coverage, please review our Return Policy page.
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