+3 photos 2020 GMC Sierra 2500 Denali Saturday, March 23, 10:31 PM - Cars ... 10-Speed Automatic Drivetrain: 4WD Fuel Type: Diesel Engine: Duramax 6.6L V8 Turbodiesel Mileage: 48,822 Certified Pre-Owned: Yes 2020 GMC SIERRA 2500HD DENALI DURAMAX DIESEL 4X4 LIFTED CREW CAB ... 35572 Houston $69,888