This high security welded steel security lock box mounts under the rear seat in both the Chevy Colorado and GMC Canyon Crew Cabs. The full width formfitting design of the Tuffy lock box has over 2100 cubic inches of lockable storage. It’s secured contents are easily accessed by flipping either or both rear seat(s) up and opening the corresponding lid(s). The unique design allows the full width to be used to stow firearms or other long and valuable items. Featuring Tuffy’s Pry-Guard Locking System with a 10 tumbler double bitted security lock with built in weather seals, the entire lock box conceals neatly under the lowered rear bench seat. The Lock box is quickly and easily installed using the factory hardware without drilling.

Over 2100 Cubic inches of lockable storage space

Exclusive 10 tumbler double bitted lock with built in weather seals

Pry-Guard locking system featuring 1/8 inch thick welded steel components

Weather resistant lid design incorporates an exclusive hinging system with built-in lid stop

Welded steel construction

Added security with Pin-Lock hinge design

Durable texture powder coat finish

Mounting hardware provided

Quick and easy install, no drilling

Weather and dust seal

Crew Cab required. Does not fit Extended Cab models. No Drilling required. Fastens with original OEM hardware.

Chevy/GMC Rear Underseat Lockbox
'15-21 Colorado / Canyon; w / Crew Cab (Black)

SKU: 343-01

MSRP: $505.00 $459.00


Cab Type
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Because of high demand, this product is on backorder.

That means we’re out of stock, and making more. You can still buy it. By ordering it here, you are reserving yours and your card will be charged the full amount today. Orders will be filled in the order in which they were placed. You may call us at 800-348-8339 for an estimated delivery date.

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Detailed Specs

SKU: 343-01


Product Type Underseat Lockbox
Description Rear Seat
Color Black


Exterior Dimensions Overall 13.5” L x 42” W x 7” H
Interior Compartment 13.375” L x 39.75” W x 6.875” H
2015-2021 Chevrolet Colorado
2015-2021 GMC Canyon
Installation Instructions
Marketing Videos
California Residents: WARNING

California Proposition 65

WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.

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Chevy/GMC Rear Underseat Lockbox
Chevy/GMC Rear Underseat Lockbox Chevy/GMC 2015-2021 Colorado/Canyon
Lockboxes,Storage & Security,Truck/SUV Products,Tuffy Security Products,Underseat Lockboxes
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