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  • Saturday/Sunday: Closed


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Diamondback HD Cab Guard GS14-HDCGX

Product Information
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Black Spray-On Finish


  • Constructed from diamond plate aluminum
  • Mounts directly to the DiamondBack HD and SE tonneau covers
  • Available in black spray-on finish or aluminum finish
  • Covers entire back window
  • Expanded metal screen to see through
  • Two tie down cleats (one on each side)
  • Limited lifetime warranty
  • Made in the USA

The DiamondBack HD Cab Guard protects the entire back window of your truck without impeding the driver's vision out the back window. It is constructed from a very durable diamond plate aluminum frame and expanded metal screen. The HD Cab Guard comes with two tie down cleats (one on each side) to add more tie down points for securing taller items. The DiamondBack HD Cab guard mounts directly to the DiamondBack HD and SE model tonneau covers only.

View Available Part Numbers For This Product Line

California Residents: Prop 65 Warning


  • 2014-2018 Chevy Silverado 1500
  • 2015-2019 Chevy Silverado 2500
  • 2015-2019 Chevy Silverado 3500
  • 2014-2018 GMC Sierra 1500
  • 2015-2019 GMC Sierra 2500
  • 2015-2019 GMC Sierra 3500


Limited Lifetime Warranty

The HD Cab Guard by DiamondBack is backed by a limited lifetime warranty against any manufacturer defects. Any misuse or modifications made will not be covered. To activate your warranty, please register the product. Black spray-on finish has a 3 year warranty on the finish.


The DiamondBack HD Cab Guard is designed to only work with the DiamondBack HD and SE tonneau cover models. The HD Cab Guard mounts to the cover so no cutting or drilling to your truck is needed. Drilling is required to mount the HD Cab Guard to the tonneau cover and stainless steel hardware is provided for the installation.