2026 GMC Sierra 3500HD AT4

• POWER SUNROOF
• REAR AXLE - 3.42 RATIO
• GVWR: 5
• 488 KG (12
• 100 LB)
• DUAL ALTERNATORS
• 220 AMP PRIMARY & 170 AMP AUXILIARY
• DURAMAX 6.6L V8 TURBO DIESEL
• 10-SPD AUTOMATIC TRANS.
• AT4 PREFERRED PACKAGE
• LT275/65R-20 BF GOODRICH OFF-ROAD T/A KO3 TIRES
• MAXIMUM DEALER FEE
• HIGH IDLE SWITCH
• CANADIAN BASE EQUIPMENT
• GOOSENECK/5TH WHEEL PREP PACKAGE
• PREFERRED EQUIPMENT GROUP
• UPFITTER SWITCH KIT
• CONDITIONING CHARGE
• LOCKING WHEEL NUTS
• Documentation Fee
• Federal Excise Air Tax
• Tire Levy
• Amvic Fee
• SHAGANAPPI CUSTOM BUILD PACKAGE
• REAR AXLE 3.42 RATIO
• AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
• HIGH IDLE SWITCH
• UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.
• SUNROOF POWER
• 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.)
• TRANSMISSION 10-SPEED AUTOMATIC
• TIRES LT275/65R20 E 126/123 BF GOODRICH OFF-ROAD T/A KO3
• GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
• GVWR 12 100 LBS. (5488 KG) WITH SINGLE REAR WHEELS
• ALTERNATORS DUAL 220-AMPS PRIMARY 170-AMPS AUXILIARY
• AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote (A48) rear sliding power window and (U01) Roof Marker Lamps
• Heated Mirrors
• Tow Hooks
• Premium Sound System
• Front Collision Mitigation
• Passenger Air Bag Sensor
• Requires Subscription
• Power Passenger Seat
• Aerial View Display System
• Remote Engine Start
• MP3 Capability
• Power Windows
• AM/FM Stereo
• Power Door Locks
• Conventional Spare Tire
• Blind Spot Monitor
• Fog Lamps
• Rain Sensing Wipers
• Driver Restriction Features
• Bluetooth Connection
• Variable Speed Intermittent Wipers
• Rear Bench Seat
• Stability Control
• Passenger Adjustable Lumbar
• Rear Head Air Bag
• Heated Rear Seat(s)
• Tire Pressure Monitor
• Smart Device Integration
• Driver Air Bag
• Back-Up Camera
• Heated Steering Wheel
• Satellite Radio
• Bed Liner
• Security System
• Smart Device Integration
• Seat Memory
• Front Collision Warning
• Requires Subscription
• Tow Hitch
• Privacy Glass
• LED Headlights
• Floor Mats
• Power Steering
• Cross-Traffic Alert
• Aluminum Wheels
• Requires Subscription
• Steering Wheel Audio Controls
• 4-Wheel Disc Brakes
• Daytime Running Lights
• Passenger Air Bag
• Cruise Control
• Auto-Dimming Rearview Mirror
• Power Folding Mirrors
• Multi-Zone A/C
• Requires Subscription
• Keyless Start
• Front Head Air Bag
• Cooled Front Seat(s)
• Lane Departure Warning
• Bluetooth Connection
• Leather Seats
• ABS
• Adaptive Cruise Control
• Daytime Running Lights
• Tires - Front All-Terrain
• Floor Mats
• Front Collision Warning
• Lane Departure Warning
• Integrated Turn Signal Mirrors
• Auxiliary Audio Input
• Power Mirror(s)
• Pass-Through Rear Seat
• Bucket Seats
• Power Windows
• Integrated Tailgate Step
• Keyless Start
• Auxiliary Audio Input
• WiFi Hotspot
• Front Collision Mitigation
• Tire Pressure Monitor
• MP3 Capability
• Traction Control
• Locking/Limited Slip Differential
• Four Wheel Drive
• Tires - Rear All-Terrain
• Automatic Highbeams
• Climate Control
• MP3 Capability
• Auxiliary Audio Input
• Mirror Memory
• Driver Adjustable Lumbar
• Rear Parking Aid
• Telematics
• Heated Front Seat(s)
• Intermittent Wipers
• Navigation System
• Power Driver Seat
• Automatic Highbeams
• Daytime Running Lights
• Running Boards/Side Steps
• Back-Up Camera
• Adjustable Steering Wheel
• A/C
• Keyless Entry
• Bluetooth Connection
• Telematics
• Rear Defrost
• Front Collision Warning
• Power Door Locks
• Heated Front Seat(s)
• Front Side Air Bag
• Front Collision Mitigation

<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>