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New 2026 GMC Sierra 2500HD AT4
105 milesDunn, NC 28334
For Sale:Price Unknown
- Truck
- Pickup
- Crew Cab
- Condition
- New
- Mileage
- 105miles
- Aggregate Ratings
- 3.83.8 out of 5 stars
- Generation
- 4(2020 - 2026)
- Trim
- AT4
- Drivetrain
- 4X4
- Transmission
- 10-Speed Shiftable Automatic
- Exterior Color
- Coastal Dune (White)Factory Paint Code:G42
- Interior Color
- Jet Black W Kalahari Accents (Black)Factory Paint Code:HVD
- Size Segment
- Heavy Duty
- Doors
- 4
- Max Seating
- 5
- Max Towing Capacity
- 16,000lbs.
- Ground Clearance
- 10.1inch
- Final Assembly Point
- Flint, Michigan
- VIN
- 1GT4UPEY9TF234619
Engine6.6L V8 Bio Diesel 470hp
- Fuel Type:Bio Diesel
- Max Horsepower:470 hp @ 2800 rpm
- Max Torque:975 ft.lbf @ 1600 rpm
- Brand:Duramax
- Displacement:6.6liters
- Block Type:V
- Cylinders:8
- Aspiration:Turbo
- Fuel Induction:Common Rail Direct Injection
- Oil Capacity:9.5liters
- Cam Type:OHV
- Stroke:3.9
- Bore:4.06
- Valves:32
* Based on opinions and should be considered as general guidance only.
- Reliability (4)4 out of 5 starsGMC trucks generally have a strong reputation for reliability, and the Sierra HD is no exception. Build quality feels robust, and the powertrain is proven.
- Maintenance (3)3 out of 5 starsAs a heavy-duty diesel, maintenance intervals can be more frequent and costs higher than a light-duty truck. However, the durability of the components often offsets this over the long term.
- Technology (4)4 out of 5 starsThe infotainment system is intuitive and responsive, with good screen size and smartphone integration. Advanced driver-assistance features are plentiful and effective, enhancing safety and convenience.
- Comfort (4)4 out of 5 starsThe cabin is spacious and well-appointed, offering a comfortable environment for long hauls. Seats are supportive, and road noise is generally well-managed, though some engine rumble is present.
- Dynamics (4)4 out of 5 starsThe Duramax diesel engine provides immense power and torque, making towing and hauling effortless. While it's a heavy-duty truck, the AT4's off-road suspension and tires offer surprising capability on rough terrain.
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Listed on April 21, 2026 (7 days ago)
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