2011-2016 GM 2500HD/3500HD 6.6L LM Duramax Tonneau Covers

The bed in your 2011-2016 GM 6.6L Duramax LML may be a great place to store and haul gear; however, that doesn't mean you want prying eyes, quick hands, or inclement weather to ruin your day when you're out and about. Tonneau covers for your GM 2500HD/3500HD build are a great way to add a sleek look and awesome appeal to your truck while delivering an extra layer of security and weather resistance to your bed. There are a ton of different variations of tonneau cover and truck bed covers we offer, so you can find the best one that suits your particular budget and needs! We carry everything from roll-up, fold-out, and even retractable tonneau covers so we're sure you'll find something right here at Alligator Performance! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.