New 2026 GMCSierra 3500 HD SLT Truck Crew Cab 4x4
- Diesel
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black
- Body/Seating
- Truck Crew Cab/5 seats
- Seats
- 5 seats
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UUEY5TF434931
- Stock Number
- GF603
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Premium audio system
- Wireless phone connectivity
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
- Auto-dimming rearview mirror
- Split folding rear seat
Included Packages & Accessories
- Wheels: 20" Bright Face with Dark Painted Pockets
- Exhaust Brake
- Engine: Duramax 6.6L Turbo-Diesel V8
- 220 Amp Alternator
- Transmission: 10-Speed Automatic
- GVWR: 12,100 lbs
- 3.42 Rear Axle Ratio
- Dual Heavy-Duty 70 Amp-Hour Battery
- Winter Grille Cover
- Engine Block Heater
- Capped Fuel Fill
- Electric Rear-Window Defogger
- Front Rain-Sensing Wipers
- Skid Plates
- LED Smoked Amber Roof Marker Lamps
- Wireless Charging
- Bose Premium 7-Speaker Sound System
- Automatic Emergency Braking
- Manual Tilt-Wheel/Telescoping Steering Column
- Push Button Start
- Remote Vehicle Starter System
- GMC Premium 13.4" Diagonal Information Display
- Floor-Mounted Center Console
- Wireless Phone Projection
- 2 Charge/Data USB Ports Inside Center Console
- IntelliBeam Automatic High Beam on/Off
- State-Specific Emissions Requirements
- 2 Charge/Data USB Ports
- Steering Wheel Audio Controls
- 2 Charge-Only Rear USB Ports
- Deep-Tinted Glass
- 10-Way Power Driver Seat Adjuster with Lumbar
- Spray-on Pickup Bedliner with GMC Logo
- Hitch Guidance with Hitch View
- Front Pedestrian Braking
- Buckle to Drive
- Preferred Equipment Group 4SA
- Sierra HD Pro Safety
- Forward Collision Alert
- Following Distance Indicator
- Lane Departure Warning
- 6-Speaker Audio System Feature
- SiriusXM with 360L Trial Subscription
- Keyless Open and Start
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- Front 40/20/40 Split-Bench Seats with Lockable Storage
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Driver Memory
- Heated Driver and Front Outboard Passenger Seats
- Chrome Surround Grille with Chrome Insert Bars
- LED Cargo Area Lighting
- Unauthorized Entry Theft-Deterrent System
- Power Front Windows with Passenger Express Up/Down
- Tires: LT275/70R18E AT BW
- Wheels: 18" Machined Aluminum
- Rear Wheelhouse Liners
- ProGrade Trailering System
- in-Vehicle Trailering App
- 2-Speed Active Transfer Case
- Front Bucket Seats
- Gooseneck/5th Wheel Prep Package
- Ventilated Driver and Front Passenger Seats
- Off-Road Suspension
- X31 Off-Road Package
- Hill Descent Control
- Pickup Bed
- Tires: LT275/65R20 AT BW
- SLT Convenience Package
- Radio: AM/FM Stereo with Premium GMC Infotainment System
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar Services capable
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front tires: 275/65SR20.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 275/65SR20.0E
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 20"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 13.4"
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless Phone Charger: front
- Wireless phone connectivity
- 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
- Front seats: bucket
- Heated front seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: V-8
- Drive type: four-wheel
- Electric motor 1 torque: none
- Electric motor horsepower: none
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 470hp @ 2,800RPM
- Hybrid electric powertrain type: none
- Hybrid system combined power torque: none
- Hybrid system net power: none
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 32
- Rear locking differential
- Recommended fuel: Diesel
- Standard fuel economy fuel type: diesel
- Torque: 975 lb.-ft. @ 1,600RPM
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 284mm (11.2")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: chrome
- Door mirrors: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 16.00 to 1
- Curb weight: 3,566kg (7,862lbs)
- Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
- Engine displacement: 6.6 L
- Engine torque: 975 lb.-ft. @ 1,600RPM
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,054mm (80.9")
- Exterior length: 6,369mm (250.8")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- GVWR: 5,488kg (12,100lbs)
- Payload: 1,902kg (4,194lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Towing capacity: 9,072kg (20,000lbs)
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rain sensing wipers
- Rear reading lights
- 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: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
KBB.com Consumer Reviews
- 5.0
Great tough truck
By MoieseMT on 3/28/2025 12:25:32 PM
Bought this Denali 3500 while looking for a 2500. Glad I did, Lots of power, redesigned in 2020, and great comfortable ride. - 5.0
Great Truck
By GMC 3500 on 6/10/2024 4:55:33 PM
Awesome Truck. Good fuel economy for a big truck. Transmission shifts smoothly, I really like the 8' bed. - 5.0
2020 GMC Denali 3500 HD Duramax is a BEAST!
By Merlinsmerc on 1/23/2021 1:44:28 AM
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!
*The estimated selling price that appears after calculating dealer offers is for informational purposes, only. You may not qualify for the offers, incentives, discounts, or financing. Offers, incentives, discounts, or financing are subject to expiration and other restrictions. See dealer for qualifications and complete details. The advertised price does not include sales tax, the registration fees, other fees required by law, finance charges. A $490 documentary charge will be added to the price of each vehicle.