New 2024 GMCSierra 3500 HD Chassis Pro
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Body/Seating
- Truck Regular Cab/3 seats
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GD39SEY5RF390810
- Stock Number
- G242055
GMC
Sierra 3500 HD Chassis
Highlighted Features
- Lane departure
- Premium audio system
- Wireless phone connectivity
- Auto high-beam headlights
- Auto-dimming rearview mirror
- Perimeter/approach lights
- Remote keyless entry
- Fully automatic headlights
- Dual rear wheels
- Heated door mirrors
- Auto-dimming door mirrors
- Trailer sway control
Included Packages & Accessories
- Federal Emissions Requirements
- GVWR: 14,000 lbs
- 120-Volt Instrument Panel Power Outlet
- Skid Plates
- Spare LT235/80R17E AT Tire
- SEO: Rear Camera Kit
- Upfitter Switch Kit
- Front License Plate Kit
- Wheels: 17" Painted Steel
- 3.42 Rear Axle Ratio
- Engine: Duramax 6.6L Turbo-Diesel V8
- Engine Block Heater
- 220 Amp Alternator
- Dual Heavy-Duty 70 Amp-Hr Battery
- Winter Grille Cover
- Exhaust Brake
- Transmission: Allison 10-Speed Automatic
- Convenience Package
- Deep-Tinted Glass
- Electric Rear-Window Defogger
- Steering Wheel-Mounted Cruise Control
- Preferred Equipment Group 1SA
- Sierra HD Pro Safety
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam Automatic High Beam On/Off
- Lane Departure Warning
- Buckle to Drive
- Low Speed Forward Automatic Braking
- Solar Absorbing Tinted Glass
- Chrome Grille w/Flat Black Grille Insert Bars
- 170 Amp Alternator
- 2-Speed Electronic Shift Transfer Case
- Auto-Dimming Inside Rearview Mirror
- Front 40/20/40 Split-Bench Seat
- 4-Way Manual Driver Seat Adjuster
- 4-Way Manual Passenger Seat Adjuster
- Radio: AM/FM w/GMC Infotainment System
- Wireless Phone Projection
- 2-Speaker Audio System Feature
- OnStar & GMC Connected Services Capable
- Power-Adjustable Black Outside Mirrors
- Perimeter Lighting
Included Packages & Options
- Engine: Duramax 6.6L Turbo-Diesel V8$9,490
- Engine Block Heater
- 220 Amp Alternator
- Dual Heavy-Duty 70 Amp-Hr Battery
- Winter Grille Cover
- Exhaust Brake
- 3.42 Rear Axle Ratio
- Transmission: Allison 10-Speed Automatic
- Convenience Package$1,100
- Deep-Tinted Glass
- Electric Rear-Window Defogger
- Steering Wheel-Mounted Cruise Control
- Power-Adjustable Black Outside Mirrors$660
- Perimeter Lighting
- Auto-Dimming Inside Rearview Mirror
Included Options
- 120-Volt Instrument Panel Power Outlet$150
- Skid Plates$150
- Spare LT235/80R17E AT Tire$380
- SEO: Rear Camera Kit$73
- Upfitter Switch Kit$150
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- 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 keyless entry
- Speed control
- Tilt steering wheel
- Dual rear wheels
- Front anti-roll bar
- Front tires: 235/80SR17.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 235/80SR17.0E
- Tires: all-terrain
- Wheel size: 17"
- 1st row LCD monitors: 1
- AM/FM radio
- Premium audio system: GMC Infotainment System
- Primary LCD size: 7.0"
- Smart device integration: Apple CarPlay/Android Auto
- Speakers: 2
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Diesel engine warranty: 60 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
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 40.0gal.
- Horsepower: 470hp @ 2,800RPM
- Hybrid traction battery type: none
- Mode select transmission
- Number of valves: 32
- Rear locking differential
- Recommended fuel: Diesel
- Standard fuel economy fuel type: gasoline
- Torque: 975 lb.-ft. @ 1,600RPM
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 207mm (8.2")
- Auto-dimming door mirrors
- Bumpers: chrome
- Heated door mirrors
- Power door mirrors
- Skid plates
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 16.00 to 1
- Curb weight: 3,539kg (7,803lbs)
- Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
- Engine displacement: 6.6 L
- Engine horsepower: 470hp @ 2,800RPM
- Engine torque: 975 lb.-ft. @ 1,600RPM
- Exterior body width: 2,053mm (80.8")
- Exterior height: 2,035mm (80.1")
- Exterior length: 6,712mm (264.2")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,547mm (60.9")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,678mm (66.1")
- GVWR: 6,350kg (14,000lbs)
- Payload: 2,791kg (6,153lbs)
- Turning radius: 8.2m (27.0')
- Wheelbase: 4,343mm (171.0")
- Appearance: analog
- Auto high-beam headlights
- Compass
- Delay-off headlights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Departure Warning warning
- Low tire pressure warning
- Outside temperature display
- Rear window defroster
- 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: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Traction control
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
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