Proudly serving Minot, Bismarck, Sidney, Dickinson, Williston, New Town, Fairview, Billings, Rapid City, Watford City and surrounding Areas!
- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 2-Speed Active Transfer Case
- 4WD capability for demanding terrain and weather
- AT4 Premium Plus Package with power sunroof and Technology Package
- Gooseneck/5th Wheel Prep Package for heavy hauling
- Bed View Camera with Trailer Camera Provisions
- HD Surround Vision for complete awareness
- Multicolor 15" Head-Up Display
- Heated and ventilated leather front seats with 10-way power adjustment
- Bose Premium 7-Speaker Sound System with SiriusXM 360L
- Automatic Emergency Braking and Forward Collision Alert
- Spray-On Pickup Bedliner with GMC Logo
- Off-Road High Clearance Step and X31 Off-Road Package
- Wireless Phone Projection and Charging
This 2025 Sierra 3500HD AT4 arrives in striking Onyx Black, presenting a commanding presence on the road. The Duramax diesel engine delivers the power and torque you need for serious work, while the 10-speed automatic transmission ensures smooth operation across varied conditions. The 4WD system with 2-speed active transfer case provides confidence in snow, mud, and challenging environments.
Built for professionals who demand capability without compromise, the AT4 Premium Plus Package combines comfort with functionality. The heated and ventilated leather seats adjust with 10-way power controls, while the power sunroof adds a premium feel. The Bose sound system keeps you connected during long days, and wireless phone projection makes staying in touch seamless and safe.
Safety and visibility are engineered into every detail. The HD Surround Vision system, bed view camera, and trailer camera provisions give you complete awareness of your truck's surroundings. Automatic emergency braking and forward collision alert represent the latest in protective technology. The multicolor 15" head-up display keeps critical information within your line of sight.
The Gooseneck/5th Wheel Prep Package opens possibilities for heavy hauling with confidence. The hitch platform, stamped bed holes, and 7-pin trailer harness are ready for serious towing applications. The spray-on bedliner protects your investment while maintaining the truck's professional appearance.
Engineered for work and designed for comfort, this Sierra 3500HD AT4 combines capability with thoughtful amenities. The engine block heater, 220-amp alternator, and heavy-duty battery ensure reliable starts in demanding weather. Off-road features including the X31 Off-Road Package and high-clearance step prepare you for terrain beyond the pavement.
Every detail reflects GMC's commitment to quality construction and driver satisfaction. From the gloss black header and grille insert bars to the LED cargo area lighting, this truck commands attention while delivering serious utility.
Why Buy from Red Rock Auto? We do things different here. At Red Rock Auto, you're not just buying a vehicle - you're buying into a local team that puts you first. We price every vehicle upfront with total transparency - no games, no pressure. The most rebates, incentives and Dealer Discounts are already built in, and we'll help you stack every offer you qualify for: College Grad Bonus, First-Time Buyer Programs, Lease Loyalty, Military Appreciation, and more. We make sure your best deal is the first one. As a locally owned and operated dealership, we're proud to serve Watford City and the greater Bakken region since day one. We believe in simple, fast, and fair deals that make sense for your life and your work. That's why we brand ourselves as your "No-Nonsense Truck Headquarters." Need to trade? We offer Fair Market Trade Values and use trusted tools like JD Power and Kelley Blue Book to back it up. Get an Instant Cash Offer online
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