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Vachon GMC · Putnam, CT

2026 GMC Sierra 3500 HD Denali

4 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 3500 HD
TrimDenali
Stock number261455
Mileage4 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorOnyx Black
InteriorJet Black, Forge Perforated Leather Seating Surfaces
Towing20000

Vehicle description

Onyx Black 2026 GMC Sierra 3500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black Leather.Recent Arrival!

Features & options (250)

  • Adaptive Cruise Control
  • Bluetooth®
  • Heated Steering Wheel
  • Remote Start
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Leather Seats
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Lane Departure Warning
  • Wireless Phone Charging
  • Blind Spot Monitor
  • Forward Collision Warning
  • Navigation System
  • Parking Assistance
  • Rear View Camera
  • Tow Hitch/Tow Package
  • Automatic Climate Control
  • Entertainment System
  • Turbo Charged Engine
  • Premium Sound System
  • SiriusXM
  • Place and receive hands-free phone calls
  • 13.4" diagonal GMC Premium Infotainment System with Google built-in
  • Bluetooth® streaming audio for music and select phones
  • Wireless Apple CarPlay capability for compatible phones
  • Wireless Android Auto capability for compatible phones
  • Customize and manage entertainment and vehicle feature setting
  • Voice-activated technology for phone
  • Wi-Fi Hotspot capable
  • May require additional optional equipment
  • SiriusXM with 360L Trial Subscription
  • Wireless phone projection
  • For Apple CarPlay and Android Auto
  • Deep-tinted glass
  • Provides added protection from sun and glare
  • GMC MultiPro Tailgate
  • Hitch area lighting
  • Power lock and release
  • Chrome mirror caps
  • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
  • AT4 features high gloss Black mirror caps
  • Power folding/extending
  • Lower convex mirrors
  • Heated upper glass
  • Integrated turn signal indicators
  • Puddle lamps
  • Perimeter lighting
  • Auxiliary lighting
  • Extends 3.31-inches
  • CornerStep rear bumper
  • Located at each end of the rear bumper
  • Textured step pads to help provide secure footing
  • 20" LT275/65R20 all-terrain, blackwall tires
  • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
  • Cargo tie-downs
  • 12-fixed rated at 500 lbs. per corner
  • Single Rear Wheels
  • 6" Chrome rectangular assist steps (factory installed)
  • Textured step pads help provide secure footing
  • Stainless-steel beltline moldings
  • Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Tailgate and bed rail protection caps
  • Tailgate with EZ Lift assist, power lock & release
  • LED fog lamps
  • 18" LT275/70R18 all-terrain, blackwall spare tire
  • Spray-on bedliner
  • Includes GMC logo on all trims except PRO
  • Rear wheelhouse liners
  • Grille, Signature Chrome Denali grille
  • Chrome door handles
  • Rainsense automatic wipers
  • Body-color front bumper
  • Body-color rear bumper
  • With integrated CornerSteps
  • Side Bed Step
  • Black textured step pads help provide secure footing
  • Smoked Amber LED roof marker lamps
  • Roof-mounted lamps near the front of the cab
  • IntelliBeam
  • Power sliding rear window with rear defogger
  • Cargo bed LED lighting
  • Provides light to find cargo in the bed
  • Spare tire carrier lock
  • Helps keep spare tire secure
  • Winter Grille Cover
  • Wheels, 20" transit aluminum wheels for LPO 20" wheels and tires
  • 20" high gloss Black aluminum wheels with machined accents
  • Power sunroof
  • Retracts into the roof
  • Offers tilt and slide features with express-open and -close
  • Front license plate bracket
  • Onyx Black
  • USB ports
  • (2) First row, located on console
  • 120-volt box-mounted power outlet
  • 3-prong auxiliary household-style outlet
  • Located in the pickup bed
  • Dual-zone automatic climate control
  • Allows individual climate settings for both driver and front passenger
  • Power windows with driver express-up/down
  • Power windows with rear express-down
  • Rear air vents
  • Provides cabin comfort for rear occupants
  • Power windows with driver and front passenger express-up/down
  • If obstruction is detected, the anti-pinch feature will auto-reverse
  • Rear window defogger
  • Wrapped steering wheel
  • Carpeted floor covering
  • Color-keyed to match the interior
  • Ventilated driver and front passenger seats
  • Individually controlled
  • Cooling feature includes both seatbacks and cushions
  • Outside temperature display
  • Located in infotainment display
  • In-Vehicle Trailering App
  • Checklist
  • Trailer maintenance reminders
  • Trailer security alerts
  • Trailer mileage
  • Tow/haul reminder
  • Trailer electrical diagnostics
  • Front carpeted floor mats
  • Helps protect your interior from road debris and the elements
  • Denali models feature unique premium tufted carpeting
  • 12.3" diagonal color Driver Information Center
  • High definition display provides crisp, premium appearance
  • Assist handles
  • Front A-pillar mounted for Driver and Passenger
  • Rear B-pillar mounted
  • Driver memory
  • You can always override the feature and take control
  • Universal Home Remote
  • 3-channel programmable
  • Rear carpeted floor mats
  • 12-way power driver seat
  • Includes 8-way power driver seat
  • Includes 4-way power lumbar
  • (2) Data/charge ports located inside center console
  • Keyless Open and Start
  • Lockout protection helps you avoid locking keys in the vehicle
  • Front bucket seats
  • Up-level rear seat with storage package
  • 60/40 Full-length folding bench seat
  • Seatback storage on left and right side
  • Center fold out armrest with 2 cupholders
  • Underseat storage (full cab width)
  • Heated rear outboard seats
  • Passengers can manage heat settings with their own controls
  • Manual tilt and telescoping steering column
  • Theft-deterrent unauthorized entry system
  • Helps deter unauthorized entry, helping to protect your vehicle
  • Steering-wheel mounted controls
  • Wireless Charging
  • Uses induction technology for select portable electronic devices
  • Convenient charging location on the top of the center console
  • Seat trim, Forge Perforated Leather seating surfaces
  • 120-volt power outlet
  • Located on the instrument panel
  • 12-way power front passenger seat
  • Includes 8-way power front passenger seat
  • Includes a 4-way power lumbar control
  • Heated driver and front outboard passenger seats
  • (2) Charge ports located on rear of console
  • Front center console
  • Compass
  • Located in instrument cluster
  • Power door locks
  • Jet Black, Forge Perforated Leather seating surfaces
  • Head-Up Display
  • Multi-color 15" diagonal Head-Up Display
  • Adjustable vertical position and brightness of the display
  • Rear Camera Mirror
  • The feature also allows brightness, vertical tilt and zoom adjustments
  • Upfitter switches
  • Autotrac 2-speed transfer case with push button controls
  • 4-button control 2WD, Auto, 4WD, 4WD LO
  • 2WD High for most on-road and highway situations
  • Automatically engages 4WD until traction is regained
  • Heavy-Duty Air Filter
  • Chrome vertical recovery hooks
  • Two front frame-mounted
  • Four wheel drive
  • Integrated trailer brake controller
  • Integrated with the antilock brake system (ABS)
  • Digital Variable Steering Assist
  • Off-Road suspension
  • Skid plates
  • Help protect the front underbody, oil pan and transfer case
  • Fully boxed frame
  • Hydroformed front section
  • High-strength steel
  • Brake pad wear indicator
  • 4-wheel antilock disc brakes
  • Automatic locking rear differential
  • 12,100 lbs. GVWR
  • Gooseneck / 5th Wheel Prep Package
  • Hitch platform to accept Gooseneck or 5th wheel hitch
  • Box mounted 7-pin trailer harness
  • Heavy-duty 730 cold-cranking amps battery
  • 70 Amp-hr
  • Maintenance-free with rundown protection and retained accessory power
  • 220-amp alternator
  • Denali Reserve Package
  • Technology Package
  • Sunroof
  • Denali Preferred Equipment Group includes standard equipment
  • AT4 Preferred Package on AT4
  • Snow Plow Prep / Camper Package
  • Power feed to accommodate a backup and roof emergency light
  • A single 220-amp alternator
  • Heavy-duty front springs
  • Option/package discount
  • 3 Years OnStar One
  • Safety Services, Wi-Fi, and In-Vehicle Apps, all connected by OnStar
  • Info at OnStar.com/plans
  • Trailering Information Label
  • LED Daytime Running Lamps
  • Signature LED Daytime Running Lamps
  • Front Pedestrian Braking
  • Limited nighttime and low visibility performance
  • Front and Rear Park Assist
  • These can help you park and avoid collisions
  • Teen Driver
  • Seat Belt Adjustable Guide Loops
  • Front row only
  • Rear Seat Reminder
  • Rear Cross Traffic Alert
  • Trailer Side Blind Zone Alert
  • Hitch Guidance
  • Can help you line up the hitch to your trailer
  • Tire Pressure Monitoring System with Tire Fill Alert
  • Safety Alert Seat
  • You can also switch to beeping crash avoidance alerts
  • Trailering camera provisions
  • Includes connector for accessory wiring harness
  • OnStar Basics
  • Drive confidently with core OnStar services including
  • Remote commands
  • Built-in voice assistance
  • Real-time traffic and navigation
  • Automatic Crash Response to help if you're in need
  • Buckle to Drive
  • 6 airbags
  • Dual-stage frontal airbags for driver and front outboard passenger
  • Head-curtain airbags for outboard seating positions
  • HD Surround Vision
  • Can help you park or avoid vehicles and objects

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 100 miles of Putnam, Connecticut
Asking price$84,810Dealer asking price · 4 mi
Market value$88,045Market value · based on 6 comparable cars
vs. market Fair price-3.7%Fair price · based on 6 comparable cars

Where this price sits

Among the lowest-priced · 83% of 6 similar listings ask more than this car.

$84,314lowest$95,320highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

-3.7%
−25%Market value+25%
Fair price$3,235 below the market value of $88,045

Price range

$84,810
$84,314$95,320
2nd lowest price of 7 similar listings within 100 milesTick marks the market value · range of 6 similar listings

AutosXchange Insights

  • Compared with 6 new 2026 GMC Sierra 3500 Denali listings within 100 mi.
  • Priced $3,235 below the market value of 6 comparable cars.
  • 2nd lowest price of 7 similar listings within 100 miles.
  • About 4 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 261455 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 9, 2026. No price change at this dealership since Nov 9 ($84,810).

$84.6k$84.7k$84.8k$84.9k$85.0k$85.1kNov 9Nov 10Nov 11Nov 12

AutosXchange Intel Hub: Price changes for this model in Connecticut · This model in the Intel Hub · Market movers in Connecticut

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Sierra 3500 Denali · new · within 100 miles of Putnam, Connecticut. All 6 comparable cars for sale, nearest first.

More GMC Sierra 3500 near Putnam

All years and trims. Nearest first.