New 2025 GMC Sierra 3500HD Denali Ultimate
| Sequence | Date | Price Change | Current Price |
|---|---|---|---|
| 1. | 1/13/2026 (3 months ago) | $100,655 | |
| 2. | 1/14/2026 (3 months ago) | -$211 (-0.2%) | $100,444 |
| 3. | 3/20/2026 (20 days ago) | -$1,000 (-1.0%) | $99,444 |
| 4. | 4/2/2026 (7 days ago) | +$1,000 (+1.0%) | $100,444 |
| 5. | 4/4/2026 (5 days ago) | -$789 (-0.8%) | $99,655 |
| 6. | 4/5/2026 (4 days ago) | -$500 (-0.5%) | $99,155 |
| 7. | 4/9/2026 (4 hours ago) | +$789 (+0.8%) | $99,944 |
- Truck
- Pickup
- Crew Cab
- Luxury
- Very Comfortable
- High-Tech
- Heavy Hauler
- Extended Front Legroom
- Condition
- New
- Mileage
- 50miles
- Aggregate Ratings
- 4.24.2 out of 5 stars
- Generation
- 4(2020 - 2026)
- Drivetrain
- 4X4
- Transmission
- 10-Speed Shiftable Automatic
- Exterior Color
- Summit White (White)Factory Paint Code:GAZ
- 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
- 1GT4UYEY8SF371345
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
Vehicle Details
2025 GMC Sierra 3500 Denali Ultimate 4WD — located in Aurora, CO — is a commanding combination of luxury, capability, and diesel torque. Powered by a robust 6.6L V8 diesel, this GMC Sierra 3500 delivers exceptional towing and hauling performance while providing a refined ride for long Colorado drives. The Denali Ultimate trim elevates every detail with premium materials, advanced technology, and a bold exterior presence. Equipped with Remote Start for cold mornings, Adaptive Cruise Control for confident highway travel, and XM Radio for endless entertainment, this truck blends convenience and connectivity. The Heated Steering Wheel keeps hands warm during chilly Aurora winters, while the BOSE Stereo fills the cabin with rich, immersive sound—perfect for every commute or road trip. Four-wheel drive ensures dependable traction across mountain passes and snowy streets, making this GMC Sierra a versatile workhorse and luxury cruiser in one. This 2025 GMC Sierra 3500 Denali Ultimate is competitively priced and represents the best value for buyers seeking top-tier capability and comfort in Aurora, CO. Whether you need serious towing capacity, a high-end interior, or technology that simplifies driving, this truck checks every box. Schedule a test drive today to experience the diesel power, premium features, and confident handling that set this GMC Sierra apart. Exceptional performance and the best price await your inspection.
Equipment
with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this model. Anywhere on the planet, you will have hundreds of digital stations to choose from. This GMC Sierra's Lane Departure Warning helps keep you in your lane. Start this GMC Sierra from inside with remote start. The vehicle is pure luxury with a heated steering wheel. The steering wheel audio controls on this unit keep the volume and station within easy reach. An off-road package is equipped on this 2025 GMC Sierra 3500. Engulf yourself with the crystal clear sound of a BOSE sound system in this model. Protect this 2025 GMC Sierra 3500 from unwanted accidents with a cutting edge backup camera system. The leather seats in this 1 ton pickup are a must for buyers looking for comfort, durability, and style. This model has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience.
Packages
Technology Package: Multicolor 15" Diagonal Head-Up Display; Auto-Dimming Inside Rearview Mirror with Camera. Preferred Equipment Group 5SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Windows with Passenger Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Keyless Open and Start; ProGrade Trailering System; Bose Premium Series 12-Speaker System; Signature Denali Ultimate Grille in Vader Chrome; Push Button Start; Rear Wheelhouse
* Based on opinions and should be considered as general guidance only.
- Reliability (4)4 out of 5 starsGMC heavy-duty trucks generally have a good reputation for reliability, and the 2025 model is expected to continue this trend. While it's a new model year, the underlying components are proven. Early indications suggest strong build quality.
- Maintenance (3)3 out of 5 starsAs a large, heavy-duty truck with advanced features, maintenance costs can be higher than average. Parts are often more expensive, and specialized fluids or services may be required. Fuel economy, while decent for its class, will also contribute to running costs.
- Technology (5)5 out of 5 starsGMC has packed the Denali Ultimate with cutting-edge technology. The large infotainment screen is intuitive and responsive, and features like the multi-view camera system and advanced trailering tech are incredibly useful for heavy-duty tasks.
- Comfort (5)5 out of 5 starsThe Denali Ultimate trim lives up to its name in comfort. The seats are exceptionally supportive and offer plenty of adjustments, making long hauls a breeze. The cabin is well-insulated from road and wind noise, providing a serene environment.
- Dynamics (4)4 out of 5 starsFor a heavy-duty truck, the Sierra 3500HD Denali Ultimate handles surprisingly well. It feels stable on the highway and the steering is more precise than expected for its size. It's not a sports car, but it's competent for its class.
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