2026 GMC Sierra 3500HD AT4

• REAR AXLE - 3.42 RATIO
• GVWR: 5
• 557 KG (12
• 250 LB)
• DURAMAX 6.6L V8 TURBO DIESEL
• 10-SPD AUTOMATIC TRANS.
• AT4 PREMIUM PLUS PACKAGE
• MAXIMUM DEALER FEE
• SINGLE REAR WHEELS
• OFF-ROAD HIGH CLEARANCE STEPS (DEALER INSTALLED)
• CANADIAN BASE EQUIPMENT
• GOOSENECK/5TH WHEEL PREP PACKAGE
• PREFERRED EQUIPMENT GROUP
• CONDITIONING CHARGE
• Locking Wheel Nuts
• SUMMIT WHITE
• JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEATING SURFACES
• ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
• Aluminum Wheels
• Multi-Zone A/C
• Adjustable Steering Wheel
• 4-Wheel Disc Brakes
• Tow Hitch
• Power Windows
• Daytime Running Lights
• Rear Defrost
• Lane Departure Warning
• Power Mirror(s)
• Auxiliary Audio Input
• Mirror Memory
• Passenger Adjustable Lumbar
• Floor Mats
• Power Folding Mirrors
• Auxiliary Audio Input
• Keyless Start
• Bucket Seats
• Cross-Traffic Alert
• Telematics
• Automatic Highbeams
• Tire Pressure Monitor
• WiFi Hotspot
• Security System
• Requires Subscription
• Driver Adjustable Lumbar
• Requires Subscription
• Cruise Control
• Pass-Through Rear Seat
• Floor Mats
• Heated Steering Wheel
• Integrated Turn Signal Mirrors
• Satellite Radio
• Front Collision Warning
• Tires - Rear All-Terrain
• Rear Bench Seat
• Four Wheel Drive
• Daytime Running Lights
• Stability Control
• Power Steering
• Front Side Air Bag
• Keyless Start
• Locking/Limited Slip Differential
• Adaptive Cruise Control
• Remote Engine Start
• Daytime Running Lights
• MP3 Capability
• Bluetooth Connection
• Driver Air Bag
• Power Door Locks
• Heated Front Seat(s)
• Integrated Tailgate Step
• Auxiliary Audio Input
• Running Boards/Side Steps
• Front Head Air Bag
• Power Windows
• Rear Head Air Bag
• Requires Subscription
• Bluetooth Connection
• Tire Pressure Monitor
• Lane Departure Warning
• Traction Control
• Premium Sound System
• Aerial View Display System
• Tires - Front All-Terrain
• MP3 Capability
• Requires Subscription
• Back-Up Camera
• AM/FM Stereo
• Variable Speed Intermittent Wipers
• Back-Up Camera
• Steering Wheel Audio Controls
• Intermittent Wipers
• Telematics
• Seat Memory
• Passenger Air Bag Sensor
• Front Collision Mitigation
• Heated Mirrors
• Heated Rear Seat(s)
• Heated Front Seat(s)
• Front Collision Mitigation
• MP3 Capability
• Rear Parking Aid
• Bluetooth Connection
• Conventional Spare Tire
• Privacy Glass
• Rain Sensing Wipers
• Front Collision Mitigation
• Front Collision Warning
• Climate Control
• A/C
• Bed Liner
• Smart Device Integration
• Front Collision Warning
• Leather Seats
• Automatic Highbeams
• Tow Hooks
• Blind Spot Monitor
• Smart Device Integration
• Power Door Locks
• Power Passenger Seat
• LED Headlights
• Fog Lamps
• Navigation System
• Auto-Dimming Rearview Mirror
• Keyless Entry
• Passenger Air Bag
• Power Driver Seat
• ABS
• Driver Restriction Features
• Cooled Front Seat(s)

<h1 style="color: #00446b; text-align: center;">New 2026 GMC Sierra 3500HD AT4 Diesel for Sale in Calgary, Alberta</h1> <p style="text-align: center; font-size: 16px;">Engine: <strong>6.6 L Duramax Turbo-Diesel V8</strong></p> <h2 style="color: #00446b; border-bottom: 1px solid #ddd; padding-bottom: 5px;">Vehicle Highlights:</h2> <ul style="padding-left: 20px; line-height: 1.6;"> <li><strong>Duramax 6.6 L Turbo-Diesel V8:</strong> Produces 470 hp and a massive 975 lb-ft of torque, paired with an Allison® 10-speed automatic transmission for unmatched towing and hauling performance.</li> <li><strong>Towing Capability:</strong> Tow up to 36,000 lbs (when properly equipped)---best-in-class heavy-duty pulling power.</li> <li><strong>AT4 Off-Road Trim:</strong> Off-road tuned suspension, skid plates, 20'' wheels, and hill descent control make it ready for rugged terrain.</li> <li><strong>Premium Interior:</strong> Heated and ventilated front seats, heated rear seats, premium materials, and advanced cabin insulation for quiet comfort.</li> <li><strong>Infotainment & Tech:</strong> 13.4'' touchscreen display, Google built-in, wireless Apple CarPlay/Android Auto, and a 12.3'' driver information cluster.</li> <li><strong>Safety & Driver Assistance:</strong> Forward Collision Alert, Lane Departure Warning, Blind Zone Monitoring (with trailer coverage), HD Surround Vision, and Adaptive Cruise Control.</li> <li><strong>MultiPro Tailgate:</strong> GMC's signature Multi-function tailgate with six configurations for loading, unloading, and jobsite versatility.</li> </ul> <h2 style="color: #00446b; border-bottom: 1px solid #ddd; padding-bottom: 5px;">Description:</h2> <p>The <strong>2026 GMC Sierra 3500HD AT4</strong> combines the brute strength of the <strong>6.6 L Duramax Turbo-Diesel V8</strong> with advanced technology and premium craftsmanship. With extreme towing capacity, heavy-duty durability, and off-road capability, this AT4 is designed for drivers who demand both rugged performance and upscale refinement. Perfect for Calgary worksites, long-haul towing, or weekend mountain escapes.</p> <h2 style="color: #00446b; border-bottom: 1px solid #ddd; padding-bottom: 5px;">We Want Your Vehicle</h2> <p><strong>We're Always Paying Cash for Cars!</strong><br> Looking to sell your vehicle or trade it in? We're actively buying quality used vehicles and offering top-dollar cash offers on the spot!<br> Start with our easy online appraisal tool:<br> <a href="https://shaganappi.foxdealersites.com/value-your-trade/" target="_blank">Click here to value your trade</a><br></p> <h2 style="color: #00446b; border-bottom: 1px solid #ddd; padding-bottom: 5px;">Why Buy from Shaganappi GM in Calgary?</h2> <ul style="padding-left: 20px; line-height: 1.6;"> <li>Conveniently located on Crowchild Trail NW, serving Calgary, Cochrane, and surrounding communities.</li> <li>Extensive inventory of new GMC trucks---including HD and Diesel models.</li> <li>Flexible financing and leasing options tailored to your needs.</li> <li><strong>Your Turnkey Automotive Solution:</strong> Includes sales, certified GM service, accessories, and protection packages---all under one roof.</li> <li>Factory-trained diesel specialists for maintenance and performance support.</li> </ul> <h2 style="color: #00446b; border-bottom: 1px solid #ddd; padding-bottom: 5px;">Hassle-Free Service with Free Courtesy Uber Rides</h2> <ul style="padding-left: 20px; line-height: 1.6;"> <li><strong>Drop off your vehicle</strong>, and we'll arrange a complimentary Uber ride to your destination.</li> <li>Once your Sierra is ready, we'll schedule another Uber ride back to the dealership---on us!</li> <li>No waiting, no hassle---just smooth, customer-first service every step of the way.</li> </ul>