Our Diesel powered 2021 GMC Sierra 2500HD Denali Crew Cab 4X4 dominates your days with dynamic strength and luxurious style in Onyx Black! Motivated by a TurboCharged 6.6 Liter DuraMax Diesel V8 delivering 445hp and 910lb-ft of torque to a 10 Speed Automatic transmission. This Four Wheel Drive truck also features an off-road suspension for taking on rugged trails, and it rewards you with confident handling for a composed ride. Our Sierra makes a bold impression with exclusive Denali details, a mighty grille, LED lighting, fog lamps, aftermarket wheels, a lift, a ProGrade Trailering System, power running boards, a sunroof, and the incredible MultiPro tailgate. High-end comfort is on full display in our Denali cabin with heated/ventilated leather power front and heated rear seats, a heated leather steering wheel, dual-zone automatic climate control, and authentic open-pore wood accents. You're ready to command your days with intelligent assistance from an 8-inch touchscreen, full-color navigation, wireless Android Auto®/Apple CarPlay®, WiFi compatibility, Bluetooth®, voice control, Bose audio, and wireless charging. GMC puts safety first with smart technologies such as HD surround vision, automatic braking, lane-departure warning, a blind-spot monitor, a bed-view camera, forward collision warning, and more. Now drive our Sierra Denali and see how far it will take you! Save this Page and Call for Availability. We Know You Will Enjoy Your Car Time Supercenter Test Drive Towards Ownership! .