We have the ultimate selection of 2013 GMC Sierra 1500 bed rail caps right here. Keep your truck’s bed rails looking good and free from damage, no matter what you put your truck through. Choose bed rail caps for your 2013 GMC Sierra 1500 from brands like Dee Zee, ICI, Stampede, and more. Your truck will thank you. Have questions? Call us at 877-216-5446.