Shopping for a heavy-duty pickup truck is a great way to get a reliable vehicle built to tackle tough jobs with ease and confidence. When it comes to the best option in the heavy-duty segment, the GMC Sierra HD lineup stands out. At Huevelmans Chevrolet, you can explore the Sierra 2500 HD and 3500 HD—two exceptional trucks that combine rugged performance with advanced technology, comfort, and safety features. Whether you need power, versatility, or sophistication, these trucks offer the full package. Continue reading with the experts at Heuvelmans Chevrolet to learn more.
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New GMC Sierra 2500/3500 HD Inventory
New and popular vehicles at competitive prices.
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Performance
6.6L V8 Gas Engine
The 6.6L V8 Gas engine in the 2026 Sierra HD delivers exceptional power and performance, making it the ideal choice for those who demand both capability and efficiency from their truck. This robust engine generates an impressive 401 horsepower and 464 lb-ft of torque to effortlessly handle heavy payloads, towing tasks, and tough terrain.
6.6L Duramax Turbo-Diesel V8 Engine
For those who require uncompromising towing capability and maximum torque, the 6.6L Duramax Turbo-Diesel V8 engine is the ultimate powertrain in the 2026 Sierra HD lineup. Known for its exceptional performance and efficiency, this engine delivers a staggering 470 horsepower and 975 lb-ft of torque, making it possible to have a maximum towing capacity of 36,000 pounds with the right configuration and equipment.
2026 Sierra HD Engine Specifications
| Engine Type | 6.6L V8 Gas | 6.6L Duramax Turbo-Diesel V8 |
| Horsepower | 401 | 470 |
| Torque (lb-ft) | 464 | 975 |
| Maximum Towing Capacity (lb/kg) | TBA | 36,000 / 16,330 |
| Transmission | 10-Speed Automatic | 10-Speed Automatic |
Exterior
Modern Design
Bold and rugged, the 2026 Sierra HD lineup redefines heavy-duty design with a combination of strength and sophistication. Featuring signature GMC styling elements like the commanding large grille with the prominent GMC lettering logo and LED projector headlamps, the Sierra HD lineup exudes both power and precision. Every detail is thoughtfully crafted, from the aggressive stance to the aerodynamic contours that enhance both performance and visual appeal.
Exterior Paint Colours
Whether you are configuring a work truck or personalizing your own personal truck, GMC makes it possible to customize the perfect look with your choice of exterior paint colours. The available options include: (Extra Charge Colour*)
- Onyx Black
- Summit White
- Sterling Metallic
- Titanium Rush Metallic*
- Volcanic Red Tintcoat*
- Glacier White Tricoat*
2026 GMC Sierra 2500/3500 HD Image Gallery
Interior
Comfort Features
The 2026 Sierra HD’s latest lineup can be optioned with an array of comfort-focused options. Those features can include standard and available offerings such as:
- Heated Driver and Front Outboard Passenger Seats
- 16-Way Power Front Seats with Massaging Feature
- Heated Rear Outboard Seats
- Heated Steering Wheel
- Ventilated Front Seats
- Dual-Zone Climate Control
- 16-Way Power Front Seats with Massaging Feature
Luxury Materials
The 2026 GMC Sierra HD offers unparalleled luxury and sophistication, setting a new standard in the heavy-duty truck segment with its premium features and refined design. On select trim levels, you can enjoy full-grain leather seating and plaited contrast stitching, ensuring every drive feels like a first-class experience. With its exceptional attention to detail, the Sierra HD combines rugged capability with the highest level of comfort and style.
Technology
13.4-inch Diagonal Infotainment Touchscreen
The available 13.4-inch infotainment touchscreen provides easy access to various entertainment media and connectivity features. It runs on a highly customizable and intuitive interface, allowing you to get to the application or feature you need seamlessly. It comes standard on the SLE trim level and up.
Head-Up Display
Navigating your commute is much easier with the available 15-inch head-up display. It projects a clear, customizable display directly onto the windshield for a safe and convenient way to view vital vehicle information while driving. You can keep track of important data such as driving speed, turn-by-turn navigation instructions, tire pressures, and key system alerts, all without taking your eyes off the road or your hands off the wheel.
Safety & Driver Assistance
Standard Driver Assistance Features
Feel safe and secure throughout every commute in a 2025 GMC Sierra HD, as those heavy-duty models come equipped with a variety of advanced safety features as standard. A few of those standard options include:
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam, auto high beams
- Lane Departure Warning
- Buckle to Drive
- Automatic Emergency Braking
Trailering-Assistance Technologies
The 2026 GMC Sierra HD is ready to tackle any towing task, thanks to its heavy-duty towing capabilities supported by available trailer-assist technologies for added convenience and safety. You can equip your GMC with towing-specific features such as Adaptive Cruise Control with Trailering, ProGrade Trailering Tech, up to 14 available camera views, and much more.
2026 GMC Sierra HD 2500/3500 Trim Levels
PRO
Starting at $69,233
Details:
- 6.6L V8 Gas Engine with 10-Speed Automatic Transmission
- Trailering Package, Trailer Mirrors and Trailer Brake Controller
- Wireless Apple CarPlay and Wireless Android Auto Compatibility
SLT
Starting at $92,133
Details:
- 10-way Power Driver and Front Outboard Passenger Heated Seats with Lumbar
- Heated Steering Wheel
- Prograde Trailering System with In-Vehicle Trailering App
AT4
Starting at $100,833
Details:
- Off-Road Suspension Package with Twin-Tube Rancho Shocks and Skid Plates
- High Definition Surround Vision
- Adaptive Cruise Control
Denali Ultimate
Starting at $129,933
Details:
- Duramax 6.6L Turbo-Diesel V8 Engine with 10-speed Automatic Transmission
- 12-Speaker Bose Premium Series with Centerpoint Surround Sound
- Illuminated Power Assist Steps and MultiPro Tailgate Audio System by KICKER
Shop the 2025 GMC Sierra 2500/3500 HD at Heuvelmans Chevrolet
Get yourself into a premium GMC heavy-duty pickup truck with the help of our friendly staff at Heuvelmans Chevrolet, your trusted source for the best deals in Chatham, Ontario. Whether you are after the Sierra 2500 HD or 3500 HD, we can help you source the perfect configuration to suit your specific driving and towing needs. Contact us to learn more about the latest GMC models or inquire about the availability of your desired GMC.