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Style and Protection. Add a much sleeker, cleaner appearance to your 3500 Sierra all while discretely storing cargo and tools in the bed by installing a RedRock 4x4 Hard Tri-Fold Tonneau Cover. This RedRock 4x4 Hard Tri-Fold Tonneau Cover features a convenient tri-fold design that can fold up to easily access your bed, or when hauling larger items. As an added bonus, you may even see up to a 10% increase in fuel mileage because of its low profile aerodynamic design.
Quality Construction. RedRock 4x4 manufactures their Hard Tri-Fold Tonneau Cover with an extruded, aircraft grade aluminum frame for superior strength. The lightweight, tri-fold aluminum panels feature a matte black, weather resistant, grain textured finish that can withstand the test of time without fading, denting, or scratching, making sure your truck always looks good.
Clamp-On Installation. This RedRock 4x4 Tonneau Cover comes with all the mounting hardware needed, making for an easy installation with no drilling required. Designed to clamp-on to your truck's inner bed rails, installation can be completed in under an hours time with just basic hand tools.
Application. This RedRock 4x4 Hard Tri-Fold Tonneau Cover is designed to fit 2015-2019 GMC Sierra 3500 HD models with 6.50-Foot Standard Box.
Technical Note. Not sure of your bed size? Click here for an instructional video explaining how to measure your bed length.
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