Sierra 2500 Heavy Duty has a maximum conventional trailering capacity of up to 18,500 lbs, a maximum fifth-wheel/gooseneck rating of up to 18,510 lbs, and a maximum payload of up to 3,979 lbs.

Sierra 3500 Heavy Duty has a maximum conventional trailering capacity of up to 20,000 lbs, a maximum fifth-wheel/ gooseneck rating of up to 35,500 lbs, and a maximum payload of up to 7,442 lbs.



The Next Generation Sierra Heavy Duty pickup truck offers up to 35,500 lbs of max towing. It's built strong so you can tow strong with a larger drive shaft than the previous generation and rear axle that increase durability and strength. A bigger grille and engine fan help improve engine cooling. Improved brakes and steering offer superior control.


The Next Generation Sierra Heavy Duty truck features
advanced engines that power a confident driving and
trailering experience. The all-new 6.6L V8 gas engine
features 401 hp, 464 lb-ft of torque, a compression
ratio of  10.75:1, valve train with overhead valve,
two valves per cylinder, variable valve timing,
and it's paired with the 6-speed
automatic transmission.


A system of trailering technologies that streamline the hitching and towing process with integrated tools that help you tow with commanding control. Every choice GMC made in engineering the Next Generation Sierra Heavy Duty was done to enhance your trailering abilities, as well as your driving experience. An available 35,500-lb max trailering capability was achieved by utilizing strong, more robust chassis components-frame, axles and prop shaft-as well as these additional enhancements. Sierra Heavy Duty is more capable than ever: Sierra Heavy Duty features an all-new fully boxed ladder-type frame with nine high-strength steel cross-members, making it stronger for confident trailering and increased load hauling. All-new larger rear prop shafts and upgraded U-joints have been optimized to handle high torque output and improve durability.


A refined cabin offers advanced technology to help ensure a comfortably smart ride in this heavy-duty truck. Enjoy elevated views from a cabin featuring best-in- class Crew Cab front head room (43.0") and leg room (44.5"). Available on Sierra HD is a leather-wrapped heated steering wheel, heated front seats, enhanced HVAC system with rear-seat outlets, and heated rear outboard seating with nearly 3" of increased leg room on Crew Cab models. Convenient and spacious storage solutions include available rear seatback storage and an available center console large enough to fit hanging folders or a laptop. An elevated driver seat sits 1" taller than in the previous generation Sierra Heavy Duty and offers cushions that provide support during long hauls and while towing.


Trailering is all about confidence. Assurance that everything is operating as it should, every step of the journey. In the Next Generation Sierra Heavy Duty, that confidence starts with the all-new available ProGrade Trailering System and the views it offers-you can add up to 15 camera views when equipped with the available Technology Package. It helps when hooking up your trailer, while on the road and when backing your trailer into place. One of those views is the industry-first available transparent trailer view, which helps you to virtually see right through the trailer to detect objects behind it. With trailering covered, Sierra HD gives options like it handles views. Apple CarPlay compatibility is featured, and you can access iPhone features such as hands-free phone calls, messaging, Apple Music, Apple Maps and more. Of course, Android Auto seamlessly connects your compatible smartphone as well, so you can get directions using Google Maps, listen to music via Google Play Music and more.


Sierra Heavy Duty offers more active safety and driver-assist technologies than the previous generation. These new available innovations use a combination of cameras, short- and long-range radars and ultrasonic sensors to help you avoid mishaps, helping to make you and your companions feel safe, secure and confident. And with the available OnStar Safety & Security Plan, you have the added peace of mind of knowing an OnStar Advisor is only a button-push away. Among the safety technologies available to help enhance your awareness of the road and surrounding vehicles are Forward Collision Alert, Lane Departure Warning, Following Distance Indicator, Rear Cross Traffic Alert, Safety Alert Seat, Automatic Emergency Braking, Front and Rear Park Assist, and Teen Driver, a built-in system that encourages better driving habits for new drivers.


With highlights such as the ability to tow up to 35,500 lbs, max payload up to 7,441 lbs, and max torque up to 910 lb-ft, GMC Sierra HD is packed with best-in-class features. Among them are its roll-formed high-strength steel bed with durable spray-on bedliner, featuring 12 cargo tie-downs and best-in-class heavy-duty cargo bed volume of 69.6 - 83.5 cubic feet and Crew Cab class-leading 43" of front head room and 44.5" of front leg room. Enormous ability and abundant comfort aren't the only things Sierra HD have to offer; these trucks are engineered to conquer. Advanced engines are available, such as the all-new 6.6L V8 gas engine, that not only offer a confident driving experience, but trailering is coupled in confidence as well. On the inside, a refined cabin offers advanced technology to help ensure a comfortably smart ride. But of course, it's not just about braun and refinement. Sierra HD offers more active safety and driver-assist technologies than any previous generation. Best and last of all, GMC Sierra Heavy Duty trucks are available where Making Confidence Happen comes standard - Cavender Auto Country.



GMC Sierra Heavy Duty | Cavender Auto Country | 1700 IH-10 East, Weimar, TX 78962               Back to Top