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GMC Sierra Fiberglass Tonneau Covers

Your GMC Sierra is a fortress of strength that gets any hauling or towing task completed with ease. Provide your ride with maximum payload security by purchasing a GMC Sierra fiberglass tonneau cover from AutoAnything. These truck bed tops are custom-crafted specifically for your GMC, boasting a flawless fit.
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Latest Customer Reviews

UnderCover SE Tonneau Cover Reviews


tailgate won't open when the cover is closed

Reviewed By Sai L (Cranston, RI) Reviewed for a 2015 GMC Sierra —4/8/2017 2:47 PM

everything good,but the tailgate can't open when the cover is closed

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Ranch Legacy Tonneau Cover Reviews


Nate B.

Reviewed By Nathaniel B (Scott, AR) Reviewed for a 2015 GMC Sierra —10/24/2016 9:54 PM

Received in great condition, color match was perfect

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UnderCover Classic Tonneau Cover Reviews


Dick H

Reviewed By Richard H (Weeki Wachee, FL) Reviewed for a 2015 GMC Sierra —8/10/2016 4:58 PM

installation went fairly well, I did it alone, a couple of old blankets help a lot I should say I'm 71. Cover had a small scratch probably due to rough handling by UPS. I live on a dirt road so I had to meet him a mile from home, corners of box could be reinforced.Overall am very happy with cover gets lots of looks and anythingauto gave me a great price! So far water proof!

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About GMC Sierra Fiberglass Tonneau Covers

There’s no better way to safeguard your gear than by adding a durable GMC Sierra fiberglass truck bed cover from AutoAnything. Created from high-quality fiberglass materials, these hinged tonneau covers are built to last for the long haul. With this simple addition, you get the best of both worlds — unrivaled payload protection with unrestricted truck bed access, thanks to these covers’ innovative hinged design. Choose from AutoAnything’s varied assortment of hinged tonneaus, available in numerous styles, to find the best match for your Sierra’s needs. Take advantage of our Free Shipping and 1-Year, Lower Price Guarantee with every order.