2020-2025
2015-2019
2007-2014
Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
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Find Bed Covers & Tonneau Covers for your Sierra 3500
UnderCover Elite Hinged Tonneau Cover; Black Textured (20-25 Sierra 3500 HD w/ 6.90-Foot Standard Box)Find parts that fit my vehicle
Item SHG1959
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7 Reviews
Our Price
$1,299.99 each
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- To Learn How to Measure Your Bed Click Here
- One-Piece Hinged Tonneau Cover
- Comes With Sturdy Struts for Fastening
- Made From Tough ABS Plastic
- Coated With a Sleek Black Textured Finish
- Features an Integrated Locking System
- Fast and Easy Installation
- Three-Year Warranty Coverage
- Fits All 2020-2025 Sierra 3500 HD Models with Standard Box
| Brand | UnderCover |
| Tonneau Cover Type | Hinged |
| Tonneau Cover Installation | Clamp On |
| Tonneau Cover Locking | Keyed Lock |
| Toolbox Compatibility | Not Toolbox Compatible |
Description
Revolutionary Tonneau Cover. Protect your cargo and your Sierra's truck bed with this UnderCover Elite Hinged Tonneau Cover; Black Textured. Boasting a 1-piece construction, this tonneau cover comes with a built-in handle making it easier to manipulate. Acting like a trunk lid, this tonneau cover is designed to provide complete protection of your truck bed and all your cargo. Included with this tonneau cover is a lanyard that lets you access those hard to reach places and removable LEDs to help assist you in dark and low-light conditions.
Hinged Design. This UnderCover Elite Hinged Tonneau Cover features a one-piece design for easy handling and effective cargo protection. The additional handle provides an easier way for you to open and close the tonneau cover, and the integrated locking system protects your cargo from thieves.
Tough ABS Plastic Construction. This UnderCover Elite Hinged Tonneau Cover is manufactured using a tough ABS plastic polymer which makes the cover extremely lightweight and durable. Using an X-Effect understructure reduces the material mass without compromising the strength and integrity of this tonneau cover. A black textured finish provides additional protection from corrosion and bad weather.
Fast and Easy Installation. Installing this UnderCover Elite Hinged Tonneau Cover can be done in 30 minutes using only simple hand tools. Drilling and cutting are not needed to install this tonneau cover on your Sierra.
Three-Year Warranty. UnderCover warranties this Elite Hinged Tonneau Cover to be free from material and workmanship defects. For more details on this warranty, please check the manufacturers’ official website.
Application. This UnderCover Elite Hinged Tonneau Cover with a Black Textured Finish fits all 2020-2025 Sierra 3500 HD models with standard box.
Technical Note. Not sure of your bed size? Click here for an instructional video explaining how to measure your bed length.
Fitment:
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2023 GMC Sierra 3500
- 2024 GMC Sierra 3500
- 2025 GMC Sierra 3500
UnderCover UC1228
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
- Mounting Hardware
5.0
Customer Reviews (7)
Reviews of UnderCover Exterior products have an average rating of 4.8 out of 5
Questions & Answers
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Will It Fit My Sierra 3500
- 6.6L V8 - 20, 21, 22, 23, 24, 25
- 6.6L V8 Duramax - 20, 21, 22, 23, 24, 25
