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Pros can’t be confined. Not with nearly 9.985 million square kilometres of Canada. begging to be explored. Sierra Heavy Duty invites you to pull your world with you. A heavy-duty foundation of strength and extraordinary trailering capability make it possible, while insightful technologies help expand your trailering views. So, venture out in the premium-packed Sierra HD Denali or for road trips without roads, the Sierra HD AT4. Explore the world—with yours confidently in tow.
Experience Professional Grade—the 2021 GMC Sierra Heavy Duty.
The ability to pull and haul the heaviest loads while delivering a smooth, comfortable ride: This heavy-duty truck dream is a reality in Sierra Heavy Duty. GMC engineers achieved capability and comfort by using an optimized body structure, isolating cab mounts as well as these components:
Knowledge is powerful. It’s also the foundation of your confident trailering experience. Sierra Heavy Duty offers you the tools to help stay
in control of your truck and trailer with the available ProGrade Trailering System. This suite of intelligent trailering technologies streamlines
the hitching and trailering process to help give you more control and confidence.
Sierra Heavy Duty offers a number of available active safety and driver-assistance technologies that help in driving and trailering situations. Many of these innovations use a combination of cameras, short- and long-range radars and ultrasonic sensors to help you avoid potential collisions and make you and your companions feel safe, secure and confident.
Sierra Heavy Duty offers beds that are long and wide to handle your biggest loads. The bed height makes for comfortable lift-in loading and is optimized for gooseneck/fifth-wheel trailer clearance. To help protect the floor, a spray-on bedliner is standard on Denali and AT4 and available on other trims. The available factory-installed Gooseneck/Fifth-Wheel Prep Package includes a frame-mounted hitch platform ready to accept a fifth-wheel hitch or gooseneck ball, a bed-mounted trailer wiring connector and stamped bed holes with removable caps installed.
* Every reasonable effort is made to ensure the accuracy of the information listed above. Vehicle pricing, incentives, options (including standard equipment), and technical specifications listed is for the 2021GMCSierra 3500HD Denali may not match the exact vehicle displayed. Please confirm with a sales representative the accuracy of this information.
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Stackable vs Non-Stackable: Stackable incentives are discounts that can be combined with cash, finance and/or lease rates should you qualify for them. Please contact a sales representative for more information.