Sunset Ford of Sumner

6616 166th Ave E, Sumner, WA 98390
4.3
4.3 out of 5 stars

Used 2025 GMC Sierra 1500 AT4

19,779 miles
For Sale:Price Unknown
  • Truck
  • Pickup
  • Crew Cab
  • Condition
    Used
  • Mileage
    19,779miles
  • Aggregate Ratings
    4
    4 out of 5 stars
  • Generation
    4(2019 - 2026)
  • Trim
    AT4
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Summit White (White)Factory Paint Code:GAZ
  • Interior Color
    Jet Black W Kalahari Accents (Black)Factory Paint Code:HVD
  • Size Segment
    1/2 Ton
  • Doors
    4
  • Max Seating
    5
  • Max Towing Capacity
    8,900lbs.
  • Weight Class
    6,000-10,000 lbs. (2)
  • NHTSA Safety Ratings
    5
    5 out of 5 stars
  • Final Assembly Point
    Fort Wayne, Indiana
  • VIN
    1GTUUEE8XSZ136863

Engine3L I6 Diesel 305hp

  • Fuel Type:Diesel
  • Max Horsepower:305 hp @ 3750 rpm
  • Max Torque:495 ft.lbf @ 2750 rpm
  • Brand:Duramax
  • Displacement:3liters
  • Block Type:I
  • Cylinders:6
  • Aspiration:Turbo
  • Fuel Induction:Common Rail Direct Injection
  • Redline:5,250rpm
  • Oil Capacity:6.6liters
  • Cam Type:DOHC
  • Stroke:3.54
  • Bore:3.3
  • Valves:24

Message from the seller

AT4 off-road capability. Premium interior. Only 19k miles and ready for the Northwest.

This New Arrival One Owner 2025 GMC Sierra 1500 AT4 blends off-road capability with high-end comfort, powered by a strong drivetrain and upgraded with the X31 Off-Road Suspension package. Whether it’s heading up into the mountains, dealing with winter weather, or just daily driving with confidence, this truck is built to handle it all.

Includes Warranty Protection for Life and Oil Changes for Life.

Performance & Capability:
• X31 Off-Road Suspension w/ 2'' Lift
• 2-Speed Autotrac Transfer Case
• Auto Locking Rear Differential
• Skid Plates
• Hill Descent Control
• Trailer Brake Controller

Exterior Highlights:
• 20'' Aluminum Wheels w/ All-Terrain Tires
• MultiPro Tailgate
• Spray-In Bedliner
• LED Lighting Package
• Power Sliding Rear Window
• Power Folding Tow Mirrors

Interior & Comfort:
• Heated & Ventilated Front Seats
• Heated Rear Seats
• Heated Steering Wheel
• Power Seats w/ Memory
• Premium Interior Trim

Technology & Driver Assist:
• 13.4'' Touchscreen w/ Google Built-In
• 12.3'' Digital Driver Display
• Bose Premium Sound System
• Wireless Apple CarPlay & Android Auto
• Head-Up Display
• Remote Start

Safety & Driver Alerts:
• Adaptive Cruise Control
• Forward Collision Alert
• Lane Keep Assist
• Blind Zone Alert w/ Trailer Coverage
• Rear Cross Traffic Braking
• HD Surround Vision

This AT4 stands out with its combination of off-road capability and premium features — a great fit for everything from mountain drives to everyday use around town. Low miles, one owner, and loaded with the right equipment.

Sunset Ford of Sumner, just off of Highway 410 down the hill from Bonney Lake, 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.

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Listed on March 26, 2026 (a month ago)
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Cruz™ Disclaimer: Vehicle details shown on this site are provided by sellers or third parties. Cruz™ does not independently verify this information and is not liable for its accuracy. All services and content are offered without any warranty, either expressed or implied. Learn more here.MPG & Max Range: Fuel economy estimates are provided by the EPA and are intended for comparison purposes only. Your actual mileage will vary depending on driving conditions, vehicle condition, and other factors.Price: Prices shown may not include taxes, fees, or other charges. Prices and availability are subject to change without notice. Contact the seller for the most current pricing information.Options & Features: Installed options may not be shown. Contact the seller for more information about available features and options.