2020-2025
2015-2019
2007-2014
2001-2006
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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UnderCover Select Hard Folding Tonneau Cover (01-06 Sierra 2500 HD w/ 6.50-Foot Standard Box)Find parts that fit my vehicle
Item HG52812
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Our Price
$849.99 each
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- UnderCover Select Tonneau Cover
- Hard Tri-Folding Design
- Made in the USA with Global Materials
- Limited 3-Year Warranty
- Sleek and Low-Profile Design
- Supports Up to 300 Pounds of Evenly Distributed Weight
- Convenient 2/3-Bed Access
- Flexible Rubber Hinges
- Durable Rubber Weather Seals
- No Drilling Required
- Direct Replacement
- Comes in Singles
- Fits 2001-2006 GMC Sierra 2500 HD Models with 6.50-Foot Standard Box
| Brand | UnderCover |
| Tonneau Cover Type | Hard Folding |
| Tonneau Cover Installation | Clamp On |
| Tonneau Cover Locking | Locking with Tailgate Lock |
| Toolbox Compatibility | Not Toolbox Compatible |
| Tonneau Cover Fold Type | Hard Folding - Tri |
Description
Heavy-Duty Bed Protection. The UnderCover Select Tonneau Cover is a robust and reliable truck bed cover designed to provide security, protection, and sleek styling. Built for the 2001-2006 GMC Sierra 2500 HD with a 6.50-foot standard box, this hard tri-folding cover adds a streamlined profile while allowing convenient 2/3-bed access. It protects your cargo from weather and theft while enhancing your truck’s functionality.
Construction and Appearance. Engineered with a hard tri-folding design, this cover features durable panels supported by flexible rubber hinges and weather-resistant rubber seals. It has a sleek, low-profile appearance that complements the truck's rugged lines. The cover is designed to handle up to 300 pounds of evenly distributed weight, delivering performance and resilience under heavy loads.
Installation. Designed with a no-drill installation process, this tonneau cover is a hassle-free upgrade for your truck. It mounts securely without the need for permanent alterations, using clamps and integrated hardware for a precise and secure hold. The adaptable design ensures that you can install it using basic tools in a short amount of time.
Warranty. The UnderCover Select Tonneau Cover is backed by a limited 3-year warranty, providing peace of mind and confidence in its craftsmanship. The warranty ensures protection against manufacturing defects and material issues throughout the coverage period.
Application. This UnderCover Select Tonneau Cover fits 2001-2006 GMC Sierra 2500 HD models with a 6.50-foot standard box. It enhances your truck’s cargo management capabilities while protecting your gear from weather exposure and theft, making it a practical and stylish addition for everyday use.
UnderCover SL14013
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Tonneau Cover
4.8
Reviews of UnderCover Exterior Products (434)
Reviews of UnderCover Exterior products have an average rating of 4.8 out of 5
Sep 9, 2023
Review shared from UnderCover Swing Case Storage System; Passenger Side (20-25 Sierra 2500 HD)
2023 - Lugo78
Bed Organizer (24’ GMC 2500)
This storage case comes in very handy, organizing and keeping cargo straps and other items ready to grab instead of riding to the front of the bed of your truck when needed. Easy to install and locks away.
Mar 22, 2025
Review shared from UnderCover Swing Case Storage System; Driver Side (03-24 RAM 2500 w/o RAM Box)
2024 Big Horn -
Perfect!
Love the swing box! Just what I was looking for! Easy install and looks great!
Mar 20, 2025
Review shared from UnderCover Armor Flex Tri-Fold Tonneau Cover (24-25 Ranger)
2024 XLT - twistedingeorgia
Easy to install and looks great
I love this bed cover. It was super easy to install, Works perfect and the bed was 100% dry after running it through the car wash. The only issue i had was with the shipper. Make sure you inspect the package for any holes and dents. My bed cover has a gnarly ding in it, it was only on the underside, so I didn't make a fuss about it as I'm sure ill ding it again at some point myself.
Jan 19, 2025
Review shared from UnderCover Swing Case Storage System; Passenger Side (20-25 Silverado 2500 HD)
2025 High Country - Digikid
Swing Storage Case
Very easy to install. Everything went as planned and very well built case. I had to give four stars because the bolt hardware is zinc. Two issues with the enclosed bolts: 1) I have a black sprayed bed and these bright zinc bolts stood out, 2) I did not spend this level of money to have these bolts rust. I went to a nut & bolt shop and bought stainless bolts along with some thread lock, which firmly completed this installation.
Jan 13, 2025
Review shared from UnderCover Swing Case Storage System; Driver Side (15-25 F-150)
2020 Lariat - DustyRedding
Easy and great
Very easy to install and looks sharp. They hold a lot of things: jumper cables, tow rope, chains, tools most everything a person needs when on the road.
Dec 28, 2024
Review shared from UnderCover Swing Case Storage System; Passenger Side (15-25 F-150)
2023 Lariat - Boraul
Great buy
Excellent product. Solves a problem that Ford should have anticipated would rise.
Dec 2, 2024
Review shared from UnderCover Swing Case Storage System; Driver Side (19-25 RAM 1500)
2025 - rhailes
Swing Case
The use of these swing cases is very simplistic and meets the need I had for storage of various tools and supplies. Very staisfied with the purchase.
Sep 23, 2024
Review shared from UnderCover Swing Case Storage System; Driver Side (19-25 Silverado 1500)
2022 RST - JeffB001
Got Driver side on sale
These cases hold all the things I don't want under my rear truck seat (jumper cables, straps, hitch & tow recovery, first aid and some tools). Took me about 15 minutes to do both sides, they came from RealTruck and say so on the sides. Looked at these before but pulled the trigger while on sale. Also, no interference with my RC hard bed cover.
Sep 14, 2024
Review shared from UnderCover Swing Case Storage System; Driver Side (19-23 Ranger)
2021 - RangerFan
Ranger1
Good overall product. Not heavy duty but, light utility. You will need to design your own organization compartments.
Sep 10, 2024
Review shared from UnderCover Swing Case Storage System; Passenger Side (19-25 Silverado 1500)
2022 RST - JeffB001
Added Storage
These cases are good for what they are, storing most small to medium size things you no longer under the back seat. Mine do not have the UnderCover Swing Case branding. These were logoed and shipped from RealTruck.
Questions & Answers
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Will It Fit My Sierra 2500
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