190 miles
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If you want heavy-duty capability with serious off-road presence, this truck delivers in every way.
New Arrival — Locally owned, one owner 2026 GMC Sierra 3500HD AT4 with under 1k miles. Practically brand new and equipped for both work and adventure, this Sierra includes Warranty Protection for Life and Oil Changes for Life, providing long-term confidence and peace of mind from day one.
Powered by the legendary Duramax 6.6L V8 Turbo Diesel and paired with a 2-speed active electronic Autotrac transfer case, this AT4 is built for towing, hauling, and tackling tough terrain without hesitation. The AT4 Premium Plus Package adds luxury, technology, and off-road-ready enhancements to match its capability.
Performance & Capability:
• Duramax 6.6L V8 Turbo Diesel
• 2-Speed Active Electronic Autotrac Transfer Case
• Auto-Locking Rear Differential
• Trailer Brake Controller
• Trailering Package w/ Hitch Guidance & Hitch View
• Gooseneck / 5th Wheel Prep Package
• In-Vehicle Trailering App
• Digital Variable Steering
• Stabilitrak w/ Trailer Sway Control & Hill Start Assist
• 3.42 Rear Axle Ratio
AT4 Premium Plus Package:
• Power Sunroof
• Rear Camera Mirror
• 15'' Multi-Color Head-Up Display
• Power Sliding Rear Window
• Universal Home Remote
• LED Roof Marker Lamps
• Off-Road High Clearance Steps
Technology & Connectivity:
• 13.4'' GMC Premium Infotainment System
• Google Built-In Compatibility w/ Navigation
• Wireless Apple CarPlay & Wireless Android Auto
• 12.3'' Reconfigurable Driver Information Center
• OnStar Basics (Up to 8 Years)
• SiriusXM Audio w/ Trial Subscription
• Wireless Charging
• Remote Vehicle Start
• 120V AC Power Outlets (Cab & Bed)
Interior Comfort & Convenience:
• Heated & Ventilated Front Seats
• Heated Second Row Outboard Seats
• Heated Wrapped Steering Wheel
• 10-Way Power Driver Seat
• Driver Seat & Mirror Memory
• Dual-Zone Automatic Climate Control
• Premium Floor Liners
• Rear Window Defogger
• Bose Premium Sound System
• Bed View Camera
Exterior Highlights:
• 20'' High Gloss Black Aluminum Wheels
• Spray-On Bed Liner
• GMC MultiPro Tailgate w/ EZ-Lift Power Lock & Release
• Animated LED Projector Headlamps
• LED Fog Lamps
• LED Cargo Bed Lighting
• Power Folding / Extending Heated Mirrors w/ Perimeter Lighting
• Rain-Sensing Wipers
• Rear Wheelhouse Liners
Sierra HD Pro Safety:
• Trailer Side Blind Zone Alert
• Rear Cross Traffic Alert
• Driver Safety Alert Seat
• HD Surround Vision
• Front & Rear Park Assist
• Automatic Emergency Braking
• Forward Collision Alert
• Front Pedestrian Braking
• Lane Departure Warning
• Following Distance Indicator
• IntelliBeam Auto High Beams
This Sierra 3500HD AT4 combines serious heavy-duty performance with off-road attitude and premium comfort. Whether you’re towing a trailer, heading into the mountains, or simply enjoying the drive, it delivers strength, technology, and refinement in one impressive package.
With under 1,000 miles, one-owner history, Warranty Protection for Life, and Oil Changes for Life included, this is as close to buying new as you can get — without the wait.
Sunset Chevrolet, 603 Harrison St in Tiny Overhead Sumner, part of the Sunset Auto Family.
The exclusive home of Warranty Protection for Life — a limited Powertrain Warranty that’s honored at any ASE-certified repair facility in the U.S. and Canada. Available on all qualifying new and pre-owned vehicles for as long as you own it.
This vehicle may have an open safety recall. Head to the National Highway Traffic Safety Administration (NHTSA) website to perform a quick search.
Some vehicles may be subject to manufacturer safety recalls. See if there are any open safety recalls for this vehicle. This does not include non-safety recalls. Recently announced safety recalls may not yet be posted and there may be a delay between the time a repair is made and before it is reported or posted to the website. Before purchasing, be sure to ask the dealer for an up-to-date status on any recalls.
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190 miles
