New 2026 GMC Sierra 3500HD Denali Ultimate
- Truck
- Pickup
- Crew Cab
- Luxury
- Very Comfortable
- Heavy Hauler
- Extended Front Legroom
- Condition
- New
- Mileage
- 1miles
- Aggregate Ratings
- 44 out of 5 stars
- Generation
- 4(2020 - 2026)
- Drivetrain
- 4X4
- Transmission
- 10-Speed Shiftable Automatic
- Exterior Color
- 93800
- Interior Color
- Alpine Umber (Brown & Beige)Factory Paint Code:H40
- Size Segment
- Heavy Duty
- Doors
- 4
- Max Seating
- 5
- Max Towing Capacity
- 20,000lbs.
- Final Assembly Point
- Flint, Michigan
- VIN
- 1GT4UYEYXTF252052
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
Message from the seller
Driver Air Bag,Passenger Air Bag,Passenger Air Bag On/Off Switch,Front Side Air Bag,Front Head Air Bag,Rear Head Air Bag,Climate Control,Multi-Zone A/C,A/C,Security System,AM/FM Stereo,ABS,4-Wheel Disc Brakes,Cruise Control,Rear Defrost,Locking/Limited Slip Differential,Four Wheel Drive,8 Cylinder Engine,Turbocharged,Floor Mats,Diesel Fuel,Daytime Running Lights,Keyless Entry,Power Door Locks,Heated Mirrors,Power Mirror(s),Navigation System,Sun/Moonroof,Running Boards/Side Steps,Power Driver Seat,Power Passenger Seat,Pass-Through Rear Seat,Leather Seats,Bucket Seats,Power Steering,Adjustable Steering Wheel,Tires - Front All-Terrain,Tires - Rear All-Terrain,Conventional Spare Tire,Traction Control,Aluminum Wheels,Power Windows,Intermittent Wipers,A/T,Generic Sun/Moonroof,Premium Sound System,Satellite Radio,MP3 Capability,Fog Lamps,Heated Front Seat(s),Privacy Glass,Variable Speed Intermittent Wipers,Rain Sensing Wipers,Steering Wheel Audio Controls,Auto-Dimming Rearview Mirror,Integrated Turn Signal Mirrors,Mirror Memory,Rear Parking Aid,Driver Adjustable Lumbar,Passenger Adjustable Lumbar,Seat Memory,Leather Steering Wheel,Tow Hitch,Tow Hooks,Tire Pressure Monitor,Universal Garage Door Opener,Sliding Rear Window,Bluetooth Connection,Telematics,Bed Liner,Remote Engine Start,Back-Up Camera,Stability Control,Keyless Start,Auxiliary Audio Input,Heated Rear Seat(s),Cooled Front Seat(s),Power Folding Mirrors,Navigation from Telematics,Heads-Up Display,Power Retractable Running Boards,Rear Bench Seat,Passenger Air Bag Sensor,Blind Spot Monitor,Lane Departure Warning,Heated Steering Wheel,Cross-Traffic Alert,WiFi Hotspot,Seat-Massage,10-Speed A/T,Adaptive Cruise Control,Smart Device Integration,Driver Restriction Features,Aerial View Display System,Front Collision Mitigation,Front Collision Warning,Automatic Highbeams,LED Headlights,Requires Subscription,Integrated Tailgate Step
* 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 durability, and the Sierra HD line is built for heavy-duty work. While long-term data for the 2026 model is limited, past generations have proven to be robust.
- Maintenance (3)3 out of 5 starsAs with any heavy-duty truck, maintenance can be more involved and costly than a smaller vehicle. Regular fluid changes, especially for the diesel engine and heavy-duty components, are crucial. Finding specialized service might also be a factor.
- Technology (4)4 out of 5 starsGMC packs the Denali Ultimate with a comprehensive suite of advanced driver-assistance systems and a user-friendly infotainment system. Wireless Apple CarPlay and Android Auto are standard, and the large touchscreen is responsive.
- Comfort (5)5 out of 5 starsThe Denali Ultimate trim sets a new standard for heavy-duty truck comfort. The cabin is exceptionally quiet, the seats are plush and supportive, and the ride quality, even when unloaded, is surprisingly smooth for its class.
- Dynamics (4)4 out of 5 starsThe 2026 Sierra 3500HD Denali Ultimate offers formidable power and towing capability, especially with the Duramax diesel. While refined for a heavy-duty truck, it still exhibits inherent mass in its handling and braking.
Seating:
- Seating Rows:2
- Standard Seating:5
- Max Seating:5
- Leg Room (front):44.5in.
- Leg Room (rear):43.4in.
Performance:
- Towing Capacity:20,000lbs
- Max Towing Capacity:20,000lbs
Fuel Tank:
- Fuel Tank Volume:35.9gallon