2020 GMC UnderCover Parts

Choose a Model for your 2020 GMC


Showing 1 - 10 of 189 products
Image
SKU
Product
Rating
Price
  • Triad 2019-23 GM 6.5ft
  • Matte Black Panels Without CarbonPro Bed~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
2020 - GMC Sierra 1500 Fleetside 79.4

UnderCover
  • UX 2020-23 HD GM 8.2ft
  • Matte Black
  • 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
2020 - GMC Sierra 2500 HD Fleetside 98.2

UnderCover
  • UX 2020-23 HD GM 6.9ft
  • Matte Black
  • 2020-2023 Chevrolet Silverado/GMC Sierra HD (2500/3500) 6.9ft 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:
    • Made Of High Density Aircraft Grade Aluminum
    • Never Having To Lift The Last Panel
    • Premium Powder Coat Texture
    • Under Panel Tough Carpet Like Finish
    • Saddlebag Storage Made From Heavy Duty Commercial Grade Fabric
    • Mounts Out Of The Way
    • Allows You To Keep Your Bed Clean And Organized
    • Dual Bed Rail Bed Lighting System
    • Illuminates The Bed For Convenience Both Day And Night
    • Shut Your Tailgate w/Ease
  • 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
2020 - GMC Sierra 2500 HD Fleetside 82.2

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
2020 - GMC Sierra 1500 Fleetside 79.4

UnderCover
  • EL 2019-23 Sierra 1500 5.10ft
  • Black Textured; Without Multi-Pro Tailgate Without CarbonPro Bed~Without Multi-Pro Tailgate
  • 2019-2023 GMC Sierra 1500 5.10ft (New Body Style) Short Bed Ext/Crew Black Textured-w/o 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 By UnderCover Is The Most Refined UnderCover To Date. It Is Meticulously Designed, Engineered And Produced, But Its The Remarkable Features That Set It Apart. Completely New Design, Adding The Handle to The Back,Codable Lock And Brighter Removable LED Light.

Additional Fitment Information:
Vehicle Bed Bed Length
2020 - GMC Sierra 1500 Fleetside 69.9

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
2020 - GMC Sierra 1500 Fleetside 69.9

UnderCover
  • ES 2019-23 Sierra 1500 5.10ft
  • Smooth Gray Finish; Must Be Painted Without CarbonPro Bed~Without Multi-Pro Tailgate
  • 2019-2023 GMC Sierra 1500 5.10ft Short Bed (New Body Style) Crew/Ext w/o MultiPro TG Smooth-Ready To Paint
  • Elite Smooth 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: Gray
    • Paintable: Yes
    • Works w/Toolbox: No
    • Key Lockable: Yes
    • Full Bed Access: Yes
  • 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 by UnderCover is the most refined UnderCover tonneau cover to date. It is meticulously designed and engineered, making it the new standard in the aftermarket industry. The Elite has spectacular new features that set it apart. Starting with a completely new design, adding the handle to the back with a BOLT Lock making it codable to your trucks factory ignition key. It also has a new, brighter, and removable LED light. We have made Americas most popular tonneau cover even better.

Additional Fitment Information:
Vehicle Bed Bed Length
2020 - GMC Sierra 1500 Fleetside 69.9

UnderCover
  • EX 19-23 Sierra 1500 6.7ft
  • Dark Sky Metallic; Paint Code GJI/WA626D; Will Not Fit MultiPro Tailgate Without Multi-Pro Tailgate
  • 2019-2023 GMC Sierra 1500 6.7ft Short Bed (New Body Style) Std/Ext/Crew w/o Multipro TG GJI(WA626D)-Dark Sky Metallic
  • 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: Dark Sky Metallic
    • 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
2020 - GMC Sierra 1500 Fleetside 79.4

UnderCover
  • EX 19-23 Sierra 1500 6.7ft
  • Summit White; Paint Code GAZ/WA8624 Without CarbonPro Bed~With Multi-Pro Tailgate
  • 2019-2023 GMC Sierra 1500 6.7ft Short Bed (New Body Style) Std/Ext/Crew w/Multipro TG 50(GAZ)(WA8624)-Summit White
  • 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: Summit White
    • 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
2020 - GMC Sierra 1500 Fleetside 79.4

UnderCover
  • EX 19-20 Sierra 1500 5.10ft
  • Smokey Quartz Metallic; Paint Code GS6/WA634D; w/MultiPro Tailgate; Will Not Fit CarbonPro Truck Bed Without CarbonPro Bed~With Multi-Pro Tailgate
  • 2019-2020 GMC Sierra 1500 5.10ft Short Bed (New Body Style) Crew/Ext w/MultiPro TG GS6(WA634D)-Smokey Quartz Metallic
  • 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: Smokey Quartz Metallic
    • 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
2020 - GMC Sierra 1500 Fleetside 69.9
Showing 1 - 10 of 189 products

Loading...