2026 GMC Sierra 3500HD AT4 Crew Cab 4WD

Vehicle Details: 2026 GMC Sierra 3500 AT4 4WD V8 6.6L Diesel, located in Aurora, CO. This heavy-duty pickup delivers the power and capability required for demanding towing and hauling tasks, featuring a robust V8 6.6L diesel engine paired with four-wheel drive for confident performance on pavement and rugged terrain. The AT4 off-road package adds enhanced suspension, skid plates, and trail-focused tuning to tackle Colorado backcountry and worksite challenges. Inside, driver-focused amenities include steering wheel audio controls and XM Radio for convenient entertainment and hands-free operation. Remote start ensures cabin comfort in Aurora's seasonal weather, while lane departure warning enhances highway safety for long hauls. Advanced connectivity and comfort combine with durable materials built to stand up to daily use. This GMC Sierra 3500 AT4 offers generous towing capacity, a reinforced frame, and a purpose-built bed that accommodate heavy equipment and cargo with ease. Whether you prioritize capability, off-road readiness, or safety technology, this truck provides a balanced package for professional contractors, ranchers, and enthusiasts. Located in Aurora, CO, this 2026 GMC Sierra 3500 AT4 is competitively priced and represents the best price in the area for a fully equipped diesel 4WD heavy-duty pickup. Contact us for availability and to schedule a test drive. Equipment: This model is pure luxury with a heated steering wheel. The GMC Sierra has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. Start this unit from inside with remote start. The vehicle's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. The leather seats in this unit are a must for buyers looking for comfort, durability, and style. An off-road package is installed on this 2026 GMC Sierra 3500 so you are ready for your four-wheeling best. Protect this unit from unwanted accidents with a cutting edge backup camera system. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving the vehicle. Anywhere on the planet, you will have hundreds of digital stations to choose from. This 2026 GMC Sierra 3500 features a high end BOSE stereo system. The steering wheel audio controls on this 1 ton pickup keep the volume and station within easy reach. Packages: Cargo Convenience Package: Console-Mounted Safe; Rear Underseat Storage. 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 Badging Package: Black Sierra Nameplates; Black GMC Emblems. Black Power-Retractable Assist Steps. Power Sunroof. Volcanic Red Tintcoat. Gooseneck/5th Wheel Prep Package. Hitch Package. Console-Mounted Safe. Rear Underseat Storage. All-Weather Floor Liners with AT4 Logo. Cargo Tie-Down Rings (set of 4). LED Smoked Amber Roof Marker Lamps. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**

Additional Information

Cargo Convenience Package: Console-Mounted Safe; Rear Underseat Storage,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 Badging Package: Black Sierra Nameplates; Black GMC Emblems,Black Power-Retractable Assist Steps,Power Sunroof,Volcanic Red Tintcoat,Gooseneck/5th Wheel Prep Package,Hitch Package,Console-Mounted Safe,Rear Underseat Storage,All-Weather Floor Liners with AT4 Logo,Cargo Tie-Down Rings (set of 4),LED Smoked Amber Roof Marker Lamps,Forward collision mitigation with pedestrian impact prevention,Pedestrian impact prevention,Mobile hotspot internet access,Rear mounted camera,Adaptive cruise control,Head-up display,Automatic Emergency Braking predictive brake assist system,Cruise control with steering wheel mounted controls,Ventilated driver and front passenger seats,Keyfob remote start,Heated steering wheel,Heated driver and front passenger seats,Heated rear seats,Leather front seat upholstery,Primary monitor touchscreen,Lane departure warning,Rear collision warning,First-row sliding and tilting glass sunroof with express open/close activation sunshade,Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control,AutoTrac part and full-time 4WD,Duramax 6.6L V-8 diesel direct injection, intercooled turbo, diesel, engine with 470HP,Duramax 6.6L V-8,Front wireless smart device charging,Built-in virtual assistant,Teen Driver restricted driving mode/alerts,Keyless Open/Keyless Start with hands-free access and push button start,Keyfob window control,Aerial view camera,Smart device remote start,Push-button,Weight capacity alert,Video-feed rearview mirror,Wireless audio streaming,Hitch Guidance with Hitch View vehicle to trailer hitching assist,Gauge cluster display size: 12.30,Front mounted camera with washer,Right side camera,Pickup box camera,Left side camera,Blind spot warning,Following distance alert,Trailer tire pressure sensors,Trailer light test,Trailer light malfunction warning,Trailer theft alarm,Dual-zone front climate control,Full gauge cluster screen,Auto high-beam headlights,Immobilizer,Bose speakers