What is it made of?
The 2025 GMC Sierra 2500-3500 Tonneau Cover Panel – extruded and cast aluminum frame supporting a high strength composite sandwich panel. Powder coated rails and a tough polyurea panel finish.
The 2025 GMC Sierra 2500-3500 Tonneau Cover Tool box – engineered composite construction
Cylinder Locks – automotive grade keyed push button design
Hinge and Gas Strut Package – Industrial high strength steel six bar linkages with integrated gas struts to save space in the box!
Perimeter seal – automotive grade double bulb seals
Hardware corrosion protection – high performance
Truck box mounting system – bolt on, truck box finish protected by rubber isolators
Overall weight – 116 lbs for the complete system (Including mounting hardware)
The 2025 GMC Sierra 2500-3500 Tonneau Cover Installation time: 90 minutes
Load capacity – 400 lbs
Interior dimensions – 17″ wide x 17″ tall x 59″ long. 10 cu ft
- Tall enough for a five gallon pail, spacious enough to carry a set of golf clubs.
Space under box
- Distance to truck box floor 4.5 – 5.0 ” (depending on the truck make)
- Provides for full use of truck box width and length
Space remaining in open box area – rear face of the tool box to the head board 21″
Drain holes – Who doesn’t need an oversized tailgate cooler for the game! Just a perk we figured we would toss in!
The 2025 GMC Sierra 2500-3500 Tonneau Cover Tonneau Cove
Removal time: 15 min
Shipping Box Contents
Box One: Tool box, front cover, mounting hardware
Box Two: Tonneau cover
2025 GMC Sierra 2500-3500 Tonneau Cover Product Warranty Summary
Stowe Cargo Systems maintains the highest possible standards of manufacturing and quality control when building and assembling your 2025 GMC Sierra 2500-3500 Tonneau Cover to offer you a durable, long lasting truck tough product.
The Stowe 2-in1 system comes with a three (3) year warranty from defects in material and workmanship arising from normal use. Stowe stands behind its products, just give us a call if you need assistance with your Stowe product.
Shipping and Delivery of Your 2025 GMC Sierra 2500-3500Tonneau Cover
Free shipping applies to the purchase of a Stowe 2-in-1 System, when delivered with the 48 contiguous US states.
When you place an order with Stowe, you will receive an email confirming your order. Stowe will follow up with another email letting you know that your order has been shipped and how to track the shipments status.
For the 2-in-1 System, you will receive two boxes, one containing the tool box, and installation kit, and a second box containing the rear tonneau cover.
Given the size of the product, the boxes with be shipped via FedEx freight (not FedEx ground). For residential delivery, FedEx will call 1-2 days in advance to schedule an appointment with you.
If you need help installing your new 2025 GMC Sierra 2500-3500 Tonneau cover, call Stowe today and we can put you in contact with a Stowe tonneau cover dealer near you