Recent Arrival! 2021 GMC Sierra 2500HD AT4 4D Crew Cab Clean CARFAX. FREE DELIVERY ANYWHERE IN COLORADO **, Sierra 2500HD AAT4, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Cayenne Red Tintcoat, Jet Black With Kalahari Accents Leather. Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WDThis Sierra 2500HD comes with the FULL Mike Maroone a 60-Day 3000 Mileage Powertrain Warranty. We will review our technician’s vehicle inspection report with you before purchase. Our intention is to provide you a completely transparent buying experience. At Mike Maroone our used vehicles are Safety Checked, Warrantied, CarFax, and if you don’t like it … Bring it back! For more information or vehicles like it, stop by Mike Maroone North today. We are just north of the Chapel Hills mall behind Walmart in the Chapel Hills Auto Mall.