(844) 813-1854(844) 813-1854 Visit eBay Store Full size photos Full size photos 2017 GMC Sierra 2500HD Denali Stock #: 17985 Exterior Color: Onyx Black Interior Color: Jet Black Body Type: 4D Crew Cab Transmission: Allison 1000 6-Speed Automatic Drivetrain: 4WD Engine: Duramax 6.6L V8 Turbodiesel Mileage: 62,993 New Price! CARFAX One-Owner. Onyx Black 4D Crew Cab 20...