2023 GMC UnderCover Parts

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Canyon Sierra 1500 Sierra 2500 HD Sierra 3500 HD

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2023 GMC Sierra 3500 HD Tonneau Cover UnderCover

UX 2020-23 HD GM 8.2ft
Matte Black Dually Bed
2020-2023 GM 2500/3500 HD 8.2ft Bed
Ultra Flex Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Front Opening: No
- Style: Hard Folding Cover
- Install Time: 15 Minutes
- Rails To Install: No
- Low Profile: No
- Actual Color: Black
- Paintable: No
- Works w/Toolbox: No
- Key Lockable: No
- Full Bed Access: Yes
Features:
- Stylish Matte Black Finish
- Integrated Luminous Bed Rail Light
- Automatic Latching Panels
- Ultra Low Profile Design
- Dual Action Tailgate Seal For Easy Operation
- Made In The USA
- Carpeted Underpanels Provide A Finished OEM Look
- Weather Resistant
- 5 Year Warranty
A hard folding truck bed cover that comes with overwhelming new features, and is topped off with an alluring matte finish. The Ultra Flex is in a category of its own. From the irresistible outward appearance, to each component beneath the cover, the Ultra Flex has been carefully crafted to be the ultimate all-purpose truck bed cover. All-new features that accompany the Ultra Flex include an integrated luminous rail light system for enhanced night vision, and a dual action tailgate seal, allowing for easy operation and you to close the tailgate with the cover up or down. Multiple riding positions allow the user to ride with full access to their bed, and full weather protection is available if the cover is in the fully closed position. Ultra Flex has an Easy Clamp-on design application and can be installed and removed easily with our newly designed L-Rail's. What's more, the Ultra Flex is backed by a 5-year warranty, making it the most desirable folding cover on the market.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Sierra 3500 HD	Fleetside	98.2

1 In Stock

$1,709.99 CAD

$2,051.99 CAD

Brand	UnderCover
Part #	UX12026
Condition	New
Warehouse	C

2023 GMC Canyon Truck Bed Storage Box UnderCover

SC 2023 Colo/Can
Black Smooth; Passenger Side
2023 GM Canyon/Colorado 5ft. Bed-Passenger
Swing Case Storage Box
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
Features:
- Works With All Tonneau Covers
- Holds Up To 75 lbs.
- Moisture Seal Keeps Contents Dry
- Lockable Lid
- Quick Release Latch
- Swings Out For Easy Tailgate Access
SwingCase by UnderCover is the most innovative and versatile truck storage box ever made. Built to last from lightweight, high-impact ABS plastic; the tough, weatherproof, SwingCase is custom fitted for your truck. The SwingCase is affordable, too. In fact, you can purchase two SwingCases for less than the price of an old-fashioned truck bed box... and save a lot of space, too. Best of all, the SwingCase provides storage that is always within reach without sacrificing the use of your truck bed. Just simply pull the release lever and your gear swings out to you, no more reaching over or climbing into your truck bed. For work or play, go with SwingCase today.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Canyon	Fleetside	61.7

1 In Stock

$363.94 CAD

$436.73 CAD

Brand	UnderCover
Part #	SC107P
Condition	New
Warehouse	C

2023 GMC Canyon Tonneau Cover UnderCover

AX 2023 Colo/Can 5.2ft
Black Textured
2023 Chevrolet Colorado/GMC Canyon 5.2ft Short Bed Black Textured
Armor Flex Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- Paintable: No
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Works w/Toolbox: No
- Front Opening: No
- Style: Hard Folding Cover
- Key Lockable: No
- Full Bed Access: Yes
- Rails To Install: No
- Low Profile: Yes
Features:
- Heavy Duty Panels
- Premium Grade LINE X Coating
- Dual Action Tailgate Seal
- Stylish Matte Black Appearance
- Low Profile Design
- Automatic Latching Panels
- Made In The USA
- 5 Year Warranty
The new ArmorFlex hard folding cover is designed to protect your truck bed and its contents, while maintaining its strength, style and durability. Heavy-duty panels are coated with a LINE-X(R) specialty automotive coating designed to provide advanced protection from dents and scuffs, even in the most extreme environments. The dual-action tailgate seal offers universal tailgate operation, allowing you to close the tailgate with the last panel of the cover up or down. ArmorFlex is proudly made in the USA, and comes backed by a 5-year warranty.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Canyon	Fleetside	61.7

2 In Stock

$1,779.99 CAD

$2,135.99 CAD

Brand	UnderCover
Part #	AX12029
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

Triad 2019-23 GM 5.8ft
Matte Black Panels Will Not Work With UnderCover SwingCase
19-2023 Silverado/Sierra 5.8 Bed
UnderCover Triad Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- Paintable: No
- WARNING CA Proposition 65 Message: Cancer And Reproductive
- Works w/Toolbox: No
- Front Opening: No
- Style: Hard Folding Cover
- Key Lockable: No
- Full Bed Access: Yes
- Rails To Install: No
- Low Profile: Yes
Features:
- Fashionable Matte Black Panels
- Easy On-Off Functionality
- Integrated Perimeter And Corner Seals
- Dual Hinge Seals
The TRIAD by UnderCover is a hard-folding truck bed cover featuring matte black panels for a sleek and innovative addition to your truck bed. Integrated perimeter seals protect your truck bed from the elements, while aluminum panels enhance the security of your truck bed and support up to 600 lbs of evenly distributed weight. The TRIAD has 2 available riding positions in the fully closed and 2/3 open position for convenience to haul and manage most any cargo. The TRIAD is fashioned with easy-to-use tailgate clamps allowing quick access to the truck bed. The TRIAD hard-folding cover comes completely assembled to provide a quick and easy installation and backed by a 3-year warranty.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Sierra 1500	Fleetside	69.9

5 In Stock

$1,199.39 CAD

$1,439.27 CAD

Brand	UnderCover
Part #	TR16022
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

AX 2019-23 GM 1500 6.7ft
Black Textured w/or w/o Multi-Pro Tailgate~Will not fit Carbon Pro model
2019-2023 Chevrolet Silverado/GMC Sierra 1500HD 6.7ft Short Bed (New Body Style) Std/Ext/Crew Black Textured w/or w/o MPT
Armor Flex Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Front Opening: No
- Style: Hard Folding Cover
- Install Time: 45 Minutes
- Rails To Install: No
- Low Profile: Yes
- Actual Color: Black
- Paintable: No
- Works w/Toolbox: No
- Key Lockable: No
- Full Bed Access: Yes
Features:
- Heavy Duty Panels
- Premium Grade LINE X Coating
- Dual Action Tailgate Seal
- Stylish Matte Black Appearance
- Low Profile Design
- Automatic Latching Panels
- Made In The USA
- 5 Year Warranty
The new ArmorFlex hard folding cover is designed to protect your truck bed and its contents, while maintaining its strength, style and durability. Heavy-duty panels are coated with a LINE-X(R) specialty automotive coating designed to provide advanced protection from dents and scuffs, even in the most extreme environments. The dual-action tailgate seal offers universal tailgate operation, allowing you to close the tailgate with the last panel of the cover up or down. ArmorFlex is proudly made in the USA, and comes backed by a 5-year warranty.

Additional Fitment Information:

Vehicle	Bed	Bed Length	Sub Model
2023 - GMC Sierra 1500	Fleetside	79.4	Elevation

3 In Stock

$1,779.99 CAD

$2,135.99 CAD

Brand	UnderCover
Part #	AX12023
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

Triad 2019-23 GM 6.5ft
Matte Black Panels Will Not Work With UnderCover SwingCase
19-2023 Silverado/Sierra 6.5 Bed
UnderCover Triad Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- Paintable: No
- WARNING CA Proposition 65 Message: Cancer And Reproductive
- Works w/Toolbox: No
- Front Opening: No
- Style: Hard Folding Cover
- Key Lockable: No
- Full Bed Access: Yes
- Rails To Install: No
- Low Profile: Yes
Features:
- Fashionable Matte Black Panels
- Easy On-Off Functionality
- Integrated Perimeter And Corner Seals
- Dual Hinge Seals
The TRIAD by UnderCover is a hard-folding truck bed cover featuring matte black panels for a sleek and innovative addition to your truck bed. Integrated perimeter seals protect your truck bed from the elements, while aluminum panels enhance the security of your truck bed and support up to 600 lbs of evenly distributed weight. The TRIAD has 2 available riding positions in the fully closed and 2/3 open position for convenience to haul and manage most any cargo. The TRIAD is fashioned with easy-to-use tailgate clamps allowing quick access to the truck bed. The TRIAD hard-folding cover comes completely assembled to provide a quick and easy installation and backed by a 3-year warranty.

Additional Fitment Information:

Vehicle	Bed	Bed Length	Sub Model
2023 - GMC Sierra 1500	Fleetside	79.4	AT4

6 In Stock

$1,199.39 CAD

$1,439.27 CAD

Brand	UnderCover
Part #	TR16023
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

EL 2019-23 Sierra 1500 5.10ft
Black Textured; With Multi-Pro Tailgate Without CarbonPro Bed
2019-2023 GMC Sierra 1500 5.10ft (New Body Style) Short Bed Ext/Crew w/Multipro TG Black Textured
Elite Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Front Opening: Yes
- Style: Hard Non-folding Cover
- Install Time: 15 Minutes
- Rails To Install: No
- Low Profile: No
- Actual Color: Black
- Paintable: No
- Works w/Toolbox: No
- Key Lockable: Yes
- Full Bed Access: No
Features:
- New Single Lock Handle
- OEM Codable Lock
- LED Light Is 3X As Bright And Removable
- Lanyard Helps To Easily Access Cargo Just Out Of Reach
- Weather-Tight
- Lightweight
- Easy On/Easy Off Design
- Heavy Duty Steel Powder Coated Frame Rails
- Includes Garage Wall Storage System
- Sleek Styled Contour Custom Fit
The Elite LX is the newest cover from UnderCover. It comes standard with all the features from the UnderCover Elite. Weve added a premium carpet lined underside, topped with flawless paint to match to make the LX the sharpest tonneau on the market. Engineered to provide a precise fit and finish to your truck bed.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Sierra 1500	Fleetside	69.9

Brand	UnderCover
Part #	UC1238
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

EX 19-23 Sierra 1500 5.10ft
Black: Paint Code GBA/WA8555 Without CarbonPro Bed~With Multi-Pro Tailgate
2019-2023 GMC Sierra 1500 5.10ft Short Bed (New Body Style) Crew/Ext w/MultiPro TG-41(GBA)(WA8555)-Black
Elite LX Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Front Opening: No
- Style: Hard Non-folding Cover
- Install Time: 15 Minutes
- Rails To Install: No
- Low Profile: No
- Actual Color: Black
- Paintable: No
- Works w/Toolbox: No
- Key Lockable: Yes
- Full Bed Access: No
Features:
- Lightweight
- ABS
- Composite Construction
- Custom Engineered For A Precise Fit
- Premium Carpet Lined Underside
- Full Perimeter Seal
- Removable LED Light
- Removes Easily Using Quick Release Hardware
The Elite LX is the newest cover from UnderCover. It comes standard with all the features from the UnderCover Elite. Weve added a premium carpet lined underside, topped with flawless paint to match to make the LX the sharpest tonneau on the market. Engineered to provide a precise fit and finish to your truck bed.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Sierra 1500	Fleetside	69.9

Brand	UnderCover
Part #	UC1238L-41
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

EX 19-20 Sierra 1500 5.10ft
Glory Red; Paint Code GPJ/WA434B Without CarbonPro Bed~With Multi-Pro Tailgate
2019-2020 GMC Sierra 1500 5.10ft Short Bed (New Body Style) Crew/Ext w/Multipro TG-GPJ(WA434B)-Glory Red
Elite LX Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Front Opening: No
- Style: Hard Non-folding Cover
- Install Time: 15 Minutes
- Rails To Install: No
- Low Profile: No
- Actual Color: Glory Red
- Paintable: No
- Works w/Toolbox: No
- Key Lockable: Yes
- Full Bed Access: No
Features:
- Lightweight
- ABS
- Composite Construction
- Custom Engineered For A Precise Fit
- Premium Carpet Lined Underside
- Full Perimeter Seal
- Removable LED Light
- Removes Easily Using Quick Release Hardware
The Elite LX is the newest cover from UnderCover. It comes standard with all the features from the UnderCover Elite. Weve added a premium carpet lined underside, topped with flawless paint to match to make the LX the sharpest tonneau on the market. Engineered to provide a precise fit and finish to your truck bed.

Additional Fitment Information:

Vehicle	Bed	Bed Length
2023 - GMC Sierra 1500	Fleetside	69.9

Brand	UnderCover
Part #	UC1238L-GPJ
Condition	New
Warehouse	C

2023 GMC Sierra 1500 Tonneau Cover UnderCover

EX 19-20 Sierra 1500 5.10ft
Havana; Paint Code G2X/WA439C Without CarbonPro Bed~With Multi-Pro Tailgate
2019-2020 GMC Sierra 1500 5.10ft Short Bed (New Body Style) Crew/Ext w/Multipro TG-G2X(WA439C)-Havana
Elite LX Tonneau Cover
Product Attributes:
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov.
- Front Opening: No
- Style: Hard Non-folding Cover
- Install Time: 15 Minutes
- Rails To Install: No
- Low Profile: No
- Actual Color: Havana
- Paintable: No
- Works w/Toolbox: No
- Key Lockable: Yes
- Full Bed Access: No
Features:
- Lightweight
- ABS
- Composite Construction
- Custom Engineered For A Precise Fit
- Premium Carpet Lined Underside
- Full Perimeter Seal
- Removable LED Light
- Removes Easily Using Quick Release Hardware
The Elite LX is the newest cover from UnderCover. It comes standard with all the features from the UnderCover Elite. Weve added a premium carpet lined underside, topped with flawless paint to match to make the LX the sharpest tonneau on the market. Engineered to provide a precise fit and finish to your truck bed.