2026 GMC Sierra AT4X
GMC Sierra Details
Automatic
V8, 6.6L
Volcanic Red Tintcoat
4WD
Diesel
0 Miles
OBSIDIAN RUSH
G7219
1GT4UZEY6TF186167
2500
Leather
AT4X
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4X 4WD — V8 6.6L Diesel, located in Casper, WY. Experience heavy-duty capability paired with refined comfort and advanced tech. This GMC Sierra 2500 AT4X features a powerful 6.6L V8 diesel and four-wheel drive for towing confidence, off-road readiness, and long-haul efficiency. Premium interior touches include a heated steering wheel and steering wheel audio controls for comfort and convenience in every season. Enjoy immersive sound via the BOSE stereo and seamless smartphone integration with Apple CarPlay for navigation, calls, and media on the go. Safety and convenience are elevated with Cross-Traffic Alert to help avoid collisions when backing out of busy spots. The AT4X trim brings rugged styling, upgraded suspension, and capability enhancements that make this truck a top choice for work or weekend adventures. Whether hauling heavy loads or navigating Wyoming terrain, this GMC Sierra offers the durability you need plus modern amenities you want. Located in Casper, WY, this 2026 GMC Sierra 2500 AT4X is being offered at the best price — competitive, fair, and designed to move quickly. Don't miss a chance to own a high-performance diesel truck with premium features and safety tech. Contact us today to schedule a test drive or request more information.
Equipment
This GMC Sierra's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. Start the vehicle from inside with remote start. It has auto-adjust speed for safe following. Protect the GMC Sierra from unwanted accidents with a cutting edge backup camera system. An off-road package is installed on the GMC Sierra so you are ready for your four-wheeling best. This 3/4 ton pickup features a hands-free Bluetooth phone system. This model features a high end BOSE stereo system. The vehicle features steering wheel audio controls. It is equipped with the latest generation of XM/Sirius Radio. It offers Apple CarPlay for seamless connectivity. This unit is pure luxury with a heated steering wheel. This unit offers Android Auto for seamless smartphone integration. This model's Lane Departure Warning helps keep you in your lane. This unit is outfitted with an OnStar communication system.
Packages
Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Center Console; Bed View Camera with Two Trailer Camera Provisions; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 2 Charge/data USB Ports Inside Center Console; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; ProGrade Trailering System; Rear Wheelhouse Liners. Volcanic Red Tintcoat. Gooseneck/5th Wheel Prep Package. 3 Years SiriusXM. High Idle Switch. Sport Pedal Cover Kit. **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.**
2026 GMC Sierra 2500 AT4X 4WD — V8 6.6L Diesel, located in Casper, WY. Experience heavy-duty capability paired with refined comfort and advanced tech. This GMC Sierra 2500 AT4X features a powerful 6.6L V8 diesel and four-wheel drive for towing confidence, off-road readiness, and long-haul efficiency. Premium interior touches include a heated steering wheel and steering wheel audio controls for comfort and convenience in every season. Enjoy immersive sound via the BOSE stereo and seamless smartphone integration with Apple CarPlay for navigation, calls, and media on the go. Safety and convenience are elevated with Cross-Traffic Alert to help avoid collisions when backing out of busy spots. The AT4X trim brings rugged styling, upgraded suspension, and capability enhancements that make this truck a top choice for work or weekend adventures. Whether hauling heavy loads or navigating Wyoming terrain, this GMC Sierra offers the durability you need plus modern amenities you want. Located in Casper, WY, this 2026 GMC Sierra 2500 AT4X is being offered at the best price — competitive, fair, and designed to move quickly. Don't miss a chance to own a high-performance diesel truck with premium features and safety tech. Contact us today to schedule a test drive or request more information.
Equipment
This GMC Sierra's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. Start the vehicle from inside with remote start. It has auto-adjust speed for safe following. Protect the GMC Sierra from unwanted accidents with a cutting edge backup camera system. An off-road package is installed on the GMC Sierra so you are ready for your four-wheeling best. This 3/4 ton pickup features a hands-free Bluetooth phone system. This model features a high end BOSE stereo system. The vehicle features steering wheel audio controls. It is equipped with the latest generation of XM/Sirius Radio. It offers Apple CarPlay for seamless connectivity. This unit is pure luxury with a heated steering wheel. This unit offers Android Auto for seamless smartphone integration. This model's Lane Departure Warning helps keep you in your lane. This unit is outfitted with an OnStar communication system.
Packages
Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Center Console; Bed View Camera with Two Trailer Camera Provisions; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 2 Charge/data USB Ports Inside Center Console; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; ProGrade Trailering System; Rear Wheelhouse Liners. Volcanic Red Tintcoat. Gooseneck/5th Wheel Prep Package. 3 Years SiriusXM. High Idle Switch. Sport Pedal Cover Kit. **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.**
Features & Options
- Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Center Console; Bed View Camera with Two Trailer Camera Provisions; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 2 Charge/data USB Ports Inside Center Console; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; ProGrade Trailering System; Rear Wheelhouse Liners
- Volcanic Red Tintcoat
- Gooseneck/5th Wheel Prep Package
- 3 Years SiriusXM
- High Idle Switch
- Sport Pedal Cover Kit
- Apple CarPlay/Android Auto smart device wireless mirroring
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- Wi-Fi Hotspot capable mobile hotspot internet access
- HD Rear Vision Camera w/Hitch View 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 Cross-Traffic Alert collision warning
- First-row sliding and tilting glass sunroof with express open/close activation sunshade
- Driver seat power reclining
- lumbar support
- seatback side bolster 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
- Google Built-In 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
- HD Surround Vision w/Hitch View aerial view camera
- Smart device remote start
- Push-button
- GCW Alert weight capacity alert
- Video-feed rearview mirror
- Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- Bluetooth wireless audio streaming
- Hitch Guidance 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
- Trailer Side Blind Zone Alert blind spot warning
- Following Distance Indicator
- Trailer tire pressure sensors
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Dual-zone front climate control
- Off-road speed control
- Full gauge cluster screen
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