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Riverhead GMC · Riverhead, NY

2026 GMC Sierra 2500 HD Denali

24 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 2500 HD
TrimDenali
Stock number56554
Mileage24 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorOnyx Black
InteriorJet Black, Forge Perforated Leather Seat Trim
Towing18500

Vehicle description

Meet the 2026 GMC Sierra 2500HD Denali, a premium heavy-duty truck built for those who demand capability without compromise. This crew cab features a legendary Duramax 6.6L V8 Turbodiesel engine paired with a smooth 10-speed automatic transmission and full-time 4WD, delivering the power and control you need for any job or adventure. Finished in striking Onyx Black with luxurious leather appointments, the Denali represents the pinnacle of GMC's truck lineup. • Duramax 6.6L V8 Diesel Turbocharged with 10-Speed Automatic Transmission • Denali Reserve Package with signature chrome grille and premium styling • Gooseneck/5th Wheel Prep Package—hitch platform ready for heavy towing • 4WD with 2-Speed Active Transfer Case and Off-Road Suspension • Premium Bose 7-Speaker Sound System with SiriusXM and Apple CarPlay/Android Auto • 12-Way Power Driver and Passenger Seats with Heated and Ventilated Functions • HD Surround Vision and Multicolor 15-Inch Head-Up Display • Automatic Emergency Braking, Lane Departure Warning, and Trailer Side Blind Zone Alert • Power Sunroof and Wireless Charging • 20-Inch Ultra Bright Machined Alloy Wheels with Spray-On Bedliner This Denali is loaded with technology and comfort features designed for discerning truck buyers. From the advanced safety systems to the heated leather seats and premium audio, every detail reflects GMC's commitment to excellence. Visit us today to experience the commanding presence and refined capability of this outstanding truck.

Features & options (250)

  • Adaptive Cruise Control
  • Bluetooth®
  • Heated Steering Wheel
  • Remote Start
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Keyless Ignition System
  • Leather Seats
  • Wi-Fi Hotspot
  • Auto Dimming Mirror
  • 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 Trial Subscription
  • Wireless phone projection
  • For Apple CarPlay and Android Auto
  • Wi-Fi Hotspot capable
  • May require additional optional equipment
  • 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
  • SiriusXM with 360L Trial Subscription
  • Place and receive hands-free phone calls
  • Side Bed Step
  • Black textured step pads help provide secure footing
  • Deep-tinted glass
  • Provides added protection from sun and glare
  • Rainsense automatic wipers
  • Spray-on bedliner
  • Includes GMC logo on all trims except PRO
  • 18" LT275/70R18 all-terrain, blackwall spare tire
  • Cargo bed LED lighting
  • Provides light to find cargo in the bed
  • Smoked Amber LED roof marker lamps
  • Roof-mounted lamps near the front of the cab
  • Cab-mounted cargo area lamps
  • Activated by switch located on center switch bank
  • Illuminates the cargo bed area
  • Spare tire carrier lock
  • Helps keep spare tire secure
  • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
  • Chrome mirror caps
  • AT4 and AT4X 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
  • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  • 20" LT275/65R20 all-terrain, blackwall tires
  • Body-color front bumper
  • 20" Ultra Bright machined aluminum wheels with bright chrome inserts
  • IntelliBeam
  • Cargo tie-downs
  • 12-fixed rated at 500 lbs. per corner
  • Chrome beltline moldings
  • Grille (Signature Chrome Denali grille.)
  • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
  • LED taillamps with LED stop lights and animation
  • Rear wheelhouse liners
  • 6" Chrome rectangular assist steps (factory installed)
  • Textured step pads help provide secure footing
  • Tailgate with EZ Lift assist, power lock & release
  • Hitch area lighting
  • Tailgate and bed rail protection caps
  • GMC MultiPro Tailgate
  • Power lock and release
  • CornerStep rear bumper
  • Located at each end of the rear bumper
  • Textured step pads to help provide secure footing
  • LED fog lamps
  • Body-color rear bumper
  • With integrated CornerSteps
  • Chrome door handles
  • Winter Grille Cover
  • Power sunroof
  • Retracts into the roof
  • Offers tilt and slide features with express-open and -close
  • Onyx Black
  • Carpeted floor covering
  • Color-keyed to match the interior
  • Rear air vents
  • Provides cabin comfort for rear occupants
  • You can always override the feature and take control
  • 120-volt power outlet
  • 3-prong auxiliary household-style 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
  • Rear Seat Reminder
  • Ventilated driver and front passenger seats
  • Individually controlled
  • Cooling feature includes both seatbacks and cushions
  • Seat trim, Forge Perforated Leather
  • Power sliding rear window with rear defogger
  • Driver memory
  • Power windows with driver and front passenger express-up/down
  • If obstruction is detected, the anti-pinch feature will auto-reverse
  • Theft-deterrent unauthorized entry system
  • Helps deter unauthorized entry, helping to protect your vehicle
  • USB ports
  • (2) Data/charge ports located inside center console
  • Keyless Open and Start
  • Lockout protection helps you avoid locking keys in the vehicle
  • Power door locks
  • 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
  • Front bucket seats
  • (2) Charge ports located on rear of console
  • Steering-wheel mounted controls
  • Power windows with driver express-up/down
  • Dual-zone automatic climate control
  • Allows individual climate settings for both driver and front passenger
  • Wireless Charging
  • Uses induction technology for select portable electronic devices
  • Convenient charging location
  • Compass
  • Located in instrument cluster
  • Rear carpeted floor mats
  • Helps protect your interior from road debris and the elements
  • Denali models feature unique premium tufted carpeting
  • (2) First row, located on console
  • Universal Home Remote
  • 3-channel programmable
  • Inside rearview auto-dimming mirror
  • Front carpeted floor mats
  • 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)
  • Power windows with rear express-down
  • 120-volt box-mounted power outlet
  • Located in the pickup bed
  • Wrapped steering wheel
  • Manual tilt and telescoping steering column
  • Rear window defogger
  • 12-way power driver seat
  • Includes 8-way power driver seat
  • Includes 4-way power lumbar
  • Outside temperature display
  • Located in infotainment display
  • Front center console
  • Heated rear outboard seats
  • Passengers can manage heat settings with their own controls
  • Heated driver and front outboard passenger seats
  • 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
  • Jet Black, Forge Perforated Leather seat trim
  • 4-wheel antilock disc brakes
  • Heavy-Duty Air Filter
  • Hill Descent Control
  • Uses antilock braking to help provide a smooth, controlled descent
  • Activates by pushing a button below the instrument panel
  • Off-Road suspension
  • Brake pad wear indicator
  • Chrome vertical recovery hooks
  • Two front frame-mounted
  • Fully boxed frame
  • Hydroformed front section
  • High-strength steel
  • Push Button Start
  • Automatic locking rear differential
  • Pickup bed
  • Roll-formed high-strength steel
  • Includes bed assist step
  • Digital Variable Steering Assist
  • Skid plates
  • Help protect the front underbody, oil pan and transfer case
  • In-Vehicle Trailering App
  • Checklist
  • Trailer maintenance reminders
  • Trailer security alerts
  • Trailer mileage
  • Tow/haul reminder
  • Trailer electrical diagnostics
  • Four wheel drive
  • 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
  • Integrated trailer brake controller
  • Integrated with the antilock brake system (ABS)
  • Heavy-duty dual batteries with 1460 cold-cranking amps
  • 70 Amp-hr
  • Maintenance-free with rundown protection and retained accessory power
  • 11,350 lbs. GVWR
  • 220-amp alternator
  • Emissions, Federal requirements
  • Gooseneck / 5th Wheel Prep Package
  • Hitch platform to accept Gooseneck or 5th wheel hitch
  • Box mounted 7-pin trailer harness
  • ProGrade Trailering System
  • Hitch Guidance with Hitch View
  • X31 Off-Road Package
  • Twin-tube Rancho shocks
  • Trailering Package
  • Trailer hitch
  • Trailering hitch platform
  • Hitch Guidance
  • Sierra HD Pro Safety
  • Forward Collision Alert
  • Following Distance Indicator
  • Front Pedestrian Braking
  • Buckle to Drive
  • Automatic Emergency Braking
  • Denali Reserve Package
  • Technology Package
  • Sunroof
  • Denali Preferred Equipment Group includes standard equipment
  • AT4 Preferred Package on AT4
  • Option/package discount
  • 3 Years OnStar One
  • Safety Services, Wi-Fi, and In-Vehicle Apps, all connected by OnStar
  • Info at OnStar.com/plans
  • LED Daytime Running Lamps
  • Signature LED Daytime Running Lamps
  • Trailering Information Label
  • 6 airbags
  • Dual-stage frontal airbags for driver and front outboard passenger
  • Head-curtain airbags for outboard seating positions
  • Seat Belt Adjustable Guide Loops
  • Front row only
  • HD Surround Vision
  • Can help you park or avoid vehicles and objects
  • Teen Driver

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 50 miles of Riverhead, New York
Asking price$108,978Dealer asking price · 24 mi
Market value$85,081Market value · based on 4 comparable cars
vs. market High price+28.1%High price · based on 4 comparable cars

Where this price sits

Among the highest-priced · 0% of 4 similar listings ask more than this car.

$79,654lowest$108,978highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+28.1%
−25%Market value+25%
High price$23,897 above the market value of $85,081

Price range

$108,978
$79,654$108,978
5th lowest price of 5 similar listings within 50 milesTick marks the market value · range of 4 similar listings

AutosXchange Insights

  • Compared with 4 new 2026 GMC Sierra 2500 Denali listings within 50 mi.
  • Priced $23,897 above the market value of 4 comparable cars — compare options, condition and history.
  • 5th lowest price of 5 similar listings within 50 miles.
  • About 24 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 56554 — 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 12, 2026. No price change at this dealership since Nov 12 ($108,978).

$108.7k$108.8k$108.9k$109.0k$109.1k$109.2kNov 11Nov 12

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 2500 Denali · new · within 50 miles of Riverhead, New York. All 4 comparable cars for sale, nearest first.

More GMC Sierra 2500 near Riverhead

All years and trims. Nearest first.