
This powerful 2025 GMC Sierra 3500HD AT4 delivers premium capability and refinement in a stunning Thunderstorm Gray finish. Equipped with the legendary Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this heavy-duty truck is built for serious work and weekend adventures. The AT4 Premium Plus Package elevates comfort and style with distinctive design elements and enhanced functionality.
- Duramax 6.6L V8 Turbodiesel with 220-Amp Alternator
- Gooseneck/5th Wheel Prep Package for maximum towing flexibility
- Bose Premium 7-Speaker Sound System with Steering Wheel Controls
- 20" High Gloss Black 8-Spoke Aluminum Wheels with BFGoodrich Off-Road T/A KO3 Tires
- Engine Block Heater for reliable cold-weather starts
- Heated and Ventilated Leather Front Seats with Memory Driver Seat
- Multicolor 15" Head-Up Display and HD Surround Vision
- Automatic Emergency Braking with Front Pedestrian Braking
- Power Sunroof and Power Sliding Rear Window with Defogger
- Hitch Guidance with Hitch View and Remote Vehicle Starter System
This truck shows just over 13,000 miles and presents excellent condition. The Gooseneck/5th Wheel Prep Package combined with the front and rear molded splash guards and off-road suspension makes this Sierra ready for any terrain. Technology features including the GMC Premium 13.4" Information Display, wireless charging, and wireless phone projection keep you connected on the job or the road.
Visit us today to experience the commanding presence and premium capability of this AT4 in person. We're confident you'll appreciate the quality engineering and thoughtful features that make this Sierra 3500HD an outstanding choice for serious truck buyers.







