New Price! Thunderstorm Gray 2025 GMC Sierra 3500HD AT4 ?? 4WD ?? 10-Speed Automatic ?? Duramax 6.6L V8 Turbodiesel
Built for the biggest jobs and the toughest terrain, the Sierra 3500HD AT4 combines extreme capability with premium AT4 refinement. With the Duramax turbodiesel, X31 Off-Road Package, and the full Technology & Premium Plus Packages, this HD truck is equipped for hauling, towing, and Northwest adventure at the highest level.
Key Highlights & Capability
Duramax 6.6L V8 Turbodiesel ?? legendary torque & pulling strength
10-Speed Automatic
4WD with 2-Speed Active Transfer Case
Gooseneck/5th-Wheel Prep Package
X31 Off-Road Package
Off-Road High Clearance Step (LPO)
Spray-On Bedliner w/ GMC Logo
Bed View Camera + Trailer Camera Provisions
LED Smoked Amber Roof Marker Lamps
Advanced Towing & Safety Tech
HD Surround Vision
Trailer Side Blind Zone Alert
Rear Cross Traffic Alert
Safety Alert Seat
Ultrasonic Front & Rear Park Assist
Trailer Camera Provisions
SiriusXM w/360L (Trial)
Incredible visibility & monitoring for big-load towing
Premium Interior Comfort
Heated & Ventilated Front Seats
Heated 2nd-Row Outboard Seats
Bose Premium 7-Speaker Audio
Floor-Mounted Center Console
Wireless Charging + Wireless Phone Projection
Universal Home Remote
Power Sunroof
Convenience & Utility
Keyless Open & Start + Push Button Start
120V Bed-Mounted & Interior Power Outlets
Multiple USB & USB-C Ports
Power Sliding Rear Window w/ Defogger
LED Cargo Lighting
Front Rain-Sensing Wipers
Deep-Tinted Glass & Rear Wheelhouse Liners
Why It Fits the PNW:
Whether youre hauling equipment across snowy passes, towing your fifth-wheel into the mountains, or heading off the pavement, this AT4 HD delivers unmatched capability with first-class comfort??built for life in the Inland Northwest.
Recent Arrival!
All of us here at Camp Chevrolet of Spokane are dedicated to delivering 100% customer satisfaction. Let us know how we can make your experience even better!


