Fairfield's, located in beautiful Keene, NH, proudly serves drivers throughout New Hampshire, Vermont, Massachusetts, and all of New England. Our knowledgeable sales team is committed to providing a transparent, hassle-free buying experience and helping you find the perfect vehicle at the right price. Stop in today for a test drive or call (603) 352-7700.
Built to handle the toughest jobs while delivering premium luxury, this 2025 GMC Sierra 3500HD Denali Ultimate 4WD is powered by the legendary Duramax 6.6L V8 Turbo-Diesel paired with a 10-speed automatic transmission, providing exceptional towing capability, impressive torque, and confidence in any condition.
Factory-equipped with premium capability features including:
Gooseneck / 5th Wheel Prep Package
Snow Plow Prep / Camper Package
High Idle Switch
Upfitter Switch Kit (5 Factory Switches)
Premium Front Floor Liners
Body-Color Wheel Arch Moldings
ProGrade Trailering System
Trailer Camera Provisions
Integrated Trailer Brake Controller
MultiPro Tailgate
Inside, the Denali Ultimate surrounds you with luxury and technology, featuring:
Full-Grain Leather Interior
Heated, Ventilated & Massaging Front Seats
Heated Rear Outboard Seats
Heated Steering Wheel
Bose Premium Series 12-Speaker Audio System
13.4" GMC Premium Infotainment System
15" Head-Up Display
Wireless Apple CarPlay & Android Auto
Wireless Charging
Power Sunroof
Power-Retractable Running Boards
Advanced driver assistance features include:
HD Surround Vision
Bed View Camera
Adaptive Cruise Control
Forward Collision Alert
Automatic Emergency Braking
Front Pedestrian Braking
Lane Keep Assist with Lane Departure Warning
Blind Zone Steering Assist
Rear Cross Traffic Alert
Front & Rear Park Assist
Safety Alert Seat
Whether you're towing a large fifth wheel, hauling equipment, or simply looking for one of the most luxurious heavy-duty trucks on the road, the 2025 GMC Sierra 3500HD Denali Ultimate delivers uncompromising capability, cutting-edge technology, and first-class comfort.
At Fairfield's, we make ownership even better with one of the area's lowest documentation fees at just $399, up to two years of complimentary service on qualifying retail vehicles, complimentary EV charging stations, and a free state inspection at the time of purchase for New Hampshire and Vermont residents. Visit us today and discover why Fairfield's continues to be the Monadnock Region's trusted destination for premium vehicles and an exceptional car-buying experience.At Fairfield's Autos, we make ownership even better with one of the area's lowest documentation fees at just $399, up to two years of complimentary service on qualifying retail vehicles, complimentary EV charging stations, and a free state inspection at the time of purchase for New Hampshire and Vermont residents. Visit us today and discover why Fairfield's continues to be the Monadnock Region's trusted destination for premium vehicles and an exceptional car-buying experience.
2025 GMC Sierra 3500 HD Denali Ultimate Truck Crew Cab
- Used
- Diesel
The overview
- Exterior Color
- Onyx Black
- Interior Color
- Alpine Umber
- Odometer
- 54,486 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Seats
- 5 seats
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UYEYXSF150815
- Stock Number
- G26287A
The highlights
- Lane departure
- Leather upholstery
- Automatic temperature control
- Power moonroof
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
- Front dual zone A/C
- Heads up display
The full specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Surround View Monitor
- 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
- Primary LCD size: 13.4"
- Smart device integration
- Speaker type: brand
- Speakers: 12
- Steering wheel mounted audio controls
- Wireless Phone Charger: front
- Wireless phone connectivity
- Front center armrest
- Front seats: bucket
- Genuine wood dashboard insert
- Genuine wood door panel insert
- Heated front seats
- Heated rear seats
- Leather steering wheel
- Leather upholstery
- Max seating capacity: 5
- Power 4-way driver lumbar support
- Power 4-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
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 470hp @ 2,800RPM
- 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
- Ground clearance (min): 284mm (11.2")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- 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: 3,780kg (8,333lbs)
- 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: 2,053mm (80.8")
- 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: 1,691kg (3,729lbs)
- 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
- Blind spot: warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Heads up display
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: front and rear
- 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
- Rear collision: warning
- Security system
- Traction control
Notes from the dealer
Peace of mind
Vehicle history report
- Title information
- Odometer readings
- Accident data (if applicable)
- Service history
- Vehicle usage
- Recall information (if applicable)
- Warranty status
A name you can trust
Keene Mitsubishi is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
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