One-Owner. Our Diesel powered 2021 GMC Sierra 3500HD Denali Crew Cab 4X4 dominates your days with dynamic strength and luxurious style in Quicksilver Metallic! 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, striking alloy wheels, a ProGrade Trailering System, a spray-on bedliner, 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 Test Drive Towards Ownership! When you do business with Todd Wenzel, we want you to have a premium experience; that is why we offer the Todd Wenzel Platinum Rewards Program to our customers. With the Todd Wenzel Platinum Rewards Program, we reward you for doing business with us. You can expect to receive VIP service like free multi-point inspections and on-demand courtesy vehicles at no charge. Purchase a GM Certified Pre-Owned vehicle and you'll also earn My GM Rewards points for purchases of GM products and services to redeem for discounts on future purchases and services. It's that simple.