Buy now, pay later with Learn More

Need Help?

We've got you covered!

Sales & Service Hours

Sales & Service Hours

Customer Service

  • Mon - Fri: 8 a.m. - 6 p.m. ET
  • Sat - Sun: Closed


  • Mon - Sat: 8 a.m. - 11 p.m. ET
  • Sun: 9 a.m. - 5 p.m. ET

DiamondBack Tonneau Cover Side Boxes

What Do You Drive? We Will Tell You If It Fits.
Product Information
List Price:
Our Price:
Product Options
Select Submodels


    • Constructed from diamond plate aluminum
    • Sold in sets of 2
    • Mounts directly DiamondBack HD, SE, and 270 tonneau covers
    • each box measures 18" L x 9" W x 7" D
    • Stainless steel hardware
    • Limited lifetime warranty
    • Made in the USA

    Keep your tools and accessories organized and within an arms reach with the DiamondBack Tonneau Cover Side Boxes. The side boxes bolt directly to the Diamondback HD, SE or 270 tonneau covers, so no drilling to your truck is required. Constructed from diamond plate aluminum for durability, and stainless steel hardware is provided for the best corrosion resistance. When you purchase the side boxes you will receive two boxes, both driver and passenger sides, and all hardware necessary for a complete installation.

    View Available Part Numbers For This Product Line

    California Residents: Prop 65 Warning


    Limited Lifetime Warranty

    DiamondBack warrants the DiamondBack Side Boxes for the lifetime that you own the product against any workmanship and product defects.


    Easy bolt on application utilizing stainless steel hardware. Bolts Directly to DiamondBack HD, SE, and 270 tonneau covers only.