2026 GMC Sierra 3500HD

Summary
Shortline Automotive, Inc is committed to 100% customer satisfaction, no exceptions. Shortline has something for everyone!

Vehicle Details
2026 GMC Sierra 3500 AT4 4WD with the Duramax 6.6L V8 Diesel delivers the capability and refinement Colorado drivers expect. Located in Aurora, CO, this heavy-duty pickup blends rugged performance with premium comfort and advanced technology for towing, work, and daily driving.

The AT4 trim brings off-road-ready suspension, robust skid plates, and purposeful styling, while the Duramax diesel V8 provides exceptional torque for hauling and trailering. Four-wheel drive enhances traction across mountain roads and variable conditions, making this GMC Sierra 3500 a confident choice for demanding jobs or weekend adventures.

Inside, premium leather seats create a comfortable cabin, and the heated steering wheel adds warmth and control in cold Colorado mornings. Driver-assist features include adaptive cruise control and a back-up camera for safer maneuvering and long-distance confidence. Integrated XM Radio keeps passengers entertained on extended trips, and thoughtful interior amenities support productivity and convenience on the road.

Safety and utility are balanced with technology and strength: a durable frame, advanced towing integrations, and intuitive controls help simplify heavy-duty tasks. Whether you're towing a trailer, hauling payloads, or navigating mountain passes, this 2026 GMC Sierra 3500 AT4 4WD with 6.6L diesel power provides the capability and comfort to get the job done. Visit our Aurora, CO location to see this truck in person and arrange a test drive.

Packages
AT4 Premium Plus Package: Power Sunroof Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Premium Front Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Premium Rear Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Windows with Passenger Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Gloss Black Header and Grille Insert Bars; Rear Wheelhouse Liners Technology Package: Multicolor 15" Diagonal Head-Up Display; Auto-Dimming Inside Rearview Mirror with Camera AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote Black Power-Retractable Assist Steps Power Sunroof Gooseneck/5th Wheel Prep Package LED Smoked Amber Roof Marker Lamps