Specifications
Core Specifications
- Year
- 2025
- Make
- GMC
- Model
- Sierra 3500HD
- Trim
- Denali Ultimate
- Body Style
- Crew Cab Pickup
- Mileage
- 9k miles
- Engine
- 6.6L Duramax turbodiesel V8
- Power
- 470 hp / 975 lb-ft
- Transmission
- Allison 10-speed automatic
- Drivetrain
- 4×4
- Transfer Case
- Dual-range transfer case
- Rear Differential
- Locking rear differential
- Rear Axle Ratio
- 3.42:1
Engine & Performance
- Engine
- 6.6-liter Duramax turbodiesel V8
- Displacement
- 6.6L
- Horsepower
- 470 hp
- Torque
- 975 lb-ft
- Transmission
- Allison 10-speed automatic
- Drivetrain
- Rear or all four wheels
- Transfer Case
- Dual-range transfer case
- Rear Differential
- Locking rear differential
- Rear Axle Ratio
- 3.42:1
Wheels, Tires & Brakes
- Wheels
- 20-inch Ultra Bright machined aluminum wheels with gloss black inserts
- Tires
- 275/65 Goodyear Wrangler TrailRunner AT
- Brakes
- Four-wheel ventilated disc brakes
Exterior
- Exterior Color
- Summit White
- Roof
- Power sunroof
- Headlights
- LED headlights
- Fog Lights
- LED fog lights
- Roof Lighting
- Roof marker lights
- Mirrors
- Heated power-folding side mirrors
- Windows
- Window tint film
- Running Boards
- Illuminated power-assist steps
- Splash Guards
- Yes
- Skid Plates
- Yes
- Rear Window
- Power sliding rear window
- Bed Camera
- Bed-view camera
- Bed Liner
- Spray-on bedliner
- Cargo Lighting
- LED cargo lighting
- Tailgate
- MultiPro tailgate
- Towing Equipment
- Receiver hitch
Bed & Utility Equipment
- Ladder Rack
- Thule TracRac sliding ladder racks
- Auxiliary Fuel Tank
- 70-gallon fuel tank
- Toolbox
- Locking toolbox
- Bed Length
- 8-foot bed
- Fuel Tank Mounting
- Mounted on a powder-coated welded steel frame
Interior
- Interior Color
- Alpine Umber
- Upholstery
- Leather
- Front Seats
- Heated, ventilated, and power-adjustable
- Rear Seats
- Heated outboard rear seats
- Driver Seat Memory
- Yes
- Steering Wheel
- Heated leather-wrapped
- Climate Control
- Automatic climate control
- Cruise Control
- Yes
- Remote Start
- Yes
- Wireless Charging
- Wireless charging pad
- Console Storage
- Locking console vault
- Instrument Display
- 12.3-inch TFT screen
Infotainment & Technology
- Infotainment Display
- 13.4-inch display
- Audio
- Bose sound system
- Camera
- Bed-view camera
Service Information
- Oil Change
- Approximately 3,500 miles before the listing
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Equipment and upgrades
Modifications & Upgrades
- Bed Equipment
- Thule TracRac sliding ladder racks
- 70-gallon auxiliary fuel tank
- Locking toolbox
- Auxiliary Fuel Tank Installation
- Installed by a local company
- Mounted higher to leave usable space underneath
- Supported by a welded steel frame that was powder coated
- Tracking
- T-Mobile GPS tracker connected at the OBD port
Key Equipment
- 6.6L Duramax turbodiesel V8
- 470 hp / 975 lb-ft
- Allison 10-speed automatic
- Dual-range transfer case
- Locking rear differential
- 3.42:1 gearing
- 20-inch machined aluminum wheels
- Power sunroof
- Illuminated power-assist steps
- MultiPro tailgate
- Thule TracRac ladder racks
- 70-gallon auxiliary fuel tank
- Locking toolbox
- Heated and ventilated front seats
- Heated rear seats
- Heated steering wheel
- 13.4-inch infotainment display
- Bose sound system
- Bed-view camera
- Spray-on bedliner
- LED cargo lighting
About this Sierra 3500HD
2025 GMC Sierra 3500HD Denali Ultimate Crew Cab 4×4 with 9k miles, finished in Summit White over Alpine Umber leather. It is powered by a 6.6-liter Duramax turbodiesel V8 producing 470 horsepower and 975 lb-ft of torque, paired with an Allison 10-speed automatic transmission, dual-range transfer case, and locking rear differential. Equipment includes a power sunroof, power-assist steps, 20-inch machined aluminum wheels, heated and ventilated front seats, heated rear seats, Bose audio, a 13.4-inch infotainment display, MultiPro tailgate, Thule TracRac ladder racks, a 70-gallon auxiliary fuel tank, and a locking toolbox.
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