Onyx Black 2025 GMC Sierra 3500HD Pro 4WD 10-Speed Automatic 6.6L V8
Thanks for checking out our inventory! Please call with any questions at 608-241-1122, or visit us at High Crossing Blvd. In Madison, WI 53718. **All prices on our web site are subject to change without notice. We make every effort to provide you the most accurate, up-to-date information. The dealership should be contacted for final pricing and availability. Every feature listed on the Factory window sticker may not be available. Please contact a Sales Person if you have any questions. Tax, Title, License, and $399 Dealer Services Fee are not included in vehicle prices shown and must be paid by the purchaser. Price includes: Dealer Discount is Available Everyone.$1000 - Buick & GMC Consumer Cash Program. Exp. 09/02/2025
New 2025 GMCSierra 3500 HD Pro
- Exterior Color
- Onyx Black
- Interior Color
- Black
- Body/Seating
- Truck Regular Cab/3 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT3USE73SF268186
- Stock Number
- G250503
GMC
Sierra 3500 HD
Highlighted Features
- Lane departure
- Wireless phone connectivity
- Exterior parking camera rear
- Auto high-beam headlights
- Perimeter/approach lights
- Remote keyless entry
- Fully automatic headlights
- Heated door mirrors
- Trailer sway control
Included Packages & Accessories
- Preferred Equipment Group 1SA
- 3.73 Rear Axle Ratio
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- Vinyl Seat Trim
- Convenience Package
- Radio: AM/FM w/GMC Infotainment System
- SiriusXM Trial Subscription
- Electric Rear-Window Defogger
- 120-Volt Instrument Panel Power Outlet
- Upfitter Switch Kit (5)
- Deep-Tinted Glass
- Front License Plate Kit
- LED Cargo Area Lighting
- Power-Adjustable Black Outside Mirrors
- Pickup Bed
- Snow Plow Prep/Camper Package
- 220 Amp Alternator
- Skid Plates
- Suspension Package
- 4-Way Manual Driver Seat Adjuster
- 4-Way Manual Passenger Seat Adjuster
- Solar Absorbing Tinted Glass
- Remote Keyless Entry
- Push Button Start
- Auto-Dimming Inside Rear-View Mirror
- Chrome Grille w/Flat Black Grille Insert Bars
- 120-Volt Bed Mounted Power Outlet
- Heavy-Duty 80 Amp-Hr Battery
- 2-Speed Electronic Shift Transfer Case
- Sierra HD Pro Safety
- Wireless Phone Projection
- EZ Lift Power Lock & Release Tailgate
- Buckle to Drive
- IntelliBeam Automatic High Beam On/Off
- Perimeter Lighting
- 2-Speaker Audio System Feature
- 2 Charge/Data USB Ports
- Following Distance Indicator
- Forward Collision Alert
- Lane Departure Warning System
- Automatic Emergency Braking
- Front Pedestrian Braking
- 4-Wheel Disc Brakes
- Air Conditioning
- Electronic Stability Control
- Tachometer
- Voltmeter
- ABS brakes
- AM/FM radio
- Brake assist
- Bumpers: chrome
- Delay-off headlights
- Driver door bin
- Dual front impact airbags
- Dual front side impact airbags
- Front anti-roll bar
- Front reading lights
- Front wheel independent suspension
- Fully automatic headlights
- Heated door mirrors
- Illuminated entry
- Low tire pressure warning
- Occupant sensing airbag
- Outside temperature display
- Overhead airbag
- Overhead console
- Panic alarm
- Passenger door bin
- Passenger vanity mirror
- Power door mirrors
- Power steering
- Power windows
- Rear step bumper
- Remote keyless entry
- Speed control
- Tilt steering wheel
- Traction control
- Trip computer
- Turn signal indicator mirrors
- Variably intermittent wipers
- 2 Speakers
- Compass
- Front Center Armrest w/Storage
- Exterior Parking Camera Rear
- Auto High-beam Headlights
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Driver door bin
- Front beverage holders
- Illuminated entry
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: push button start only
- Remote engine start: smart device only (subscription required)
- Remote keyless entry
- Speed control
- Tilt steering wheel
- Front anti-roll bar
- Front tires: 275/70SR18.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 275/70SR18.0E
- Single rear wheels
- Tires: all-terrain
- Wheel size: 18"
- 1st row LCD monitors: 1
- AM/FM radio
- Primary LCD size: 7.0"
- Smart device integration
- Speakers: 2
- Wireless phone connectivity
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- Front center armrest: w/storage
- Front seats: bench
- Max seating capacity: 3
- Seat Upholstery: vinyl
- Compressor: Not Available
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 401hp @ 5,200RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 16
- Rear locking differential
- Recommended fuel: Regular Unleaded
- Standard fuel economy fuel type: gasoline
- Torque: 464 lb.-ft. @ 4,000RPM
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 285mm (11.2")
- Bumpers: chrome
- Heated door mirrors
- Hitch Class: IV
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 10.80 to 1
- Curb weight: 3,026kg (6,672lbs)
- Engine bore x stroke: 103.3mm x 98.0mm (4.07" x 3.86")
- Engine displacement: 6.6 L
- Engine horsepower: 401hp @ 5,200RPM
- Engine torque: 464 lb.-ft. @ 4,000RPM
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,056mm (80.9")
- Exterior length: 6,002mm (236.3")
- Front headroom: 1,095mm (43.1")
- Front hiproom: 1,547mm (60.9")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,678mm (66.1")
- GVWR: 5,126kg (11,300lbs)
- Payload: 2,082kg (4,590lbs)
- Towing capacity: 6,577kg (14,500lbs)
- Turning radius: 7.1m (23.5')
- Wheelbase: 3,607mm (142.0")
- Appearance: analog
- Auto high-beam headlights
- Compass
- Delay-off headlights
- Exterior parking camera rear
- Front reading lights
- Fully automatic headlights
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Traction control
Dealer Notes
KBB.com Consumer Reviews

Overall4.2Out of 5
- 5.0
2020 GMC Denali 3500 HD Duramax is a BEAST!
By Merlinsmerc | on Friday, January 22, 2021
Pulling a conventional 10,000 lb trailer over mountain passes is a whole new experience. Staying at the speed limit up long steep grades did not change the engine temperature. I feathered the accelerator up the mountain. The new 10 speed transmission is so smooth you cant feel it changing gears. This is my second GMC Denali Duramax, first being a 2016. I debated trading in for over a year, and am so happy I made the trade. Trailers always exceed by far the tongue weight posted on them, and in my case it came in at 1450 lbs. That exceeded my trucks posted maximum. The 2020 dually posts a 2,000 lb tongue weight, so now I can front load the trailer, and that reduces sway. If you can afford it, and have a heavy trailer, buy the truck!… - 5.0
Love our truck
By Ron | on Friday, December 11, 2020
The truck doesn’t have a sun roof which it was suppose to have… - 2.0
In shop for 13 weeks so far!
By Whip | on Monday, September 09, 2024
My truck has been in the shop for 13 weeks to this point with no end in sight. The Infotainment panel blew out which controls pretty much everything. Nice truck except if something goes wrong then, good luck! I would recommend looking at Fords and Rams and ask the question, how many vehicles do you have in your shop waiting for parts and for how long. I heard of one at my GMC dealership that has been waiting for 8 months! Only thing I get from GM is "we understand your frustration". Apparently they don't, or I would have my truck back long ago.…
Based on 6 consumer ratings for 2020–2025 models. | Privacy
- MSRP
- $55,045
- You Save
- -$3,303
- Price
- $51,742
- We're here to help: 608-616-4605
- We're here to help: 608-616-4605