REAL DEALER INVENTORY · ONE PREMIUM MARKETPLACE
Sell My Car
← All vehicles
Larry Spacc GMC · Dunkirk, NY

2026 GMC Sierra 3500 HD AT4

3 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 3500 HD
TrimAT4
Stock number26L390
Mileage3 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorOnyx Black
Towing20000

Vehicle description

Standard EquipmentEntertainment13.4 diagonal GMC Premium Infotainment System with Google built-in 13.4 diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM1 radio capable Bluetooth®2 streaming audio for music and select phones Wireless Apple CarPlay capability for compatible phones3Wireless Android Auto capability for compatible phones4Customize and manage entertainment and vehicle feature settingUse, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone Wireless phone projection For Apple CarPlay1 and Android Auto2Bluetooth® Pair your compatible mobile phone to your vehicle's infotainment system1Place and receive hands-free phone calls Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command systemWith streaming audio capability, you can listen to files stored on your phone or Bluetooth® digital media deviceWi-Fi Hotspot capable Terms and limitations apply. See onstar.com or dealer for details.May require additional optional equipmentSiriusXMSiriusXM with 360L Trial Subscription With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes1SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and moreExperience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever beforeExteriorGMC MultiPro Tailgate Six function tailgate designed to help improve loading, unloading and accessing the cargo boxHitch area lightingPower lock and releaseMay require additional optional equipmentCornerStep rear bumper Helps make it easier to get into and out of the pickup bedLocated at each end of the rear bumperTextured step pads to help provide secure footingSpray-on bedliner Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shiftingCovers the entire bed surface below side rails, front box top rail, gauge hole plugs and tie-downsChemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight sealDoes not include spray-on liner on tailgate due to Black composite inner panelIncludes GMC logo on all trims except PROOutside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass Chrome mirror capsAT4 features high gloss Black mirror caps Power folding/extendingLower convex mirrorsHeated upper glassIntegrated turn signal indicatorsPuddle lampsPerimeter lightingAuxiliary lightingExtends 3.31-inchesLED fog lampsSingle Rear WheelsLamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheelRainsense automatic wipers When turned on, will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshieldCargo bed LED lighting Provides light to find cargo in the bedMay require additional optional equipmentRear wheelhouse liners Help protect your truck's rear wheelhouse area from damage caused by dirt, rocks, mud, road salt and the weatherMay require additional optional equipmentDeep-tinted glass Provides added protection from sun and glareAnimated LED projectors headlamps with LED turn signals and Daytime Running LampsBody-color front bumperIntelliBeam At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1Side Bed Step Black textured step pads help provide secure footingIntegrated on forward portion of outer bed on driver and passenger side to provide ease of access to forward portion of the bed20 LT275/65R20 all-terrain, blackwall tiresBlack beltline moldingsTailgate with EZ Lift assist, power lock & release Hitch area lightingMay require additional optional equipment18 LT275/70R18 all-terrain, blackwall spare tire May require additional optional equipmentBody-color rear bumper With integrated CornerStepsAnimated LED Signature Tail lamps with Stop, turn and Reverse lamps20 high gloss Black aluminum wheelsHigh gloss Black mirror capsBody-color door handlesCargo tie-downs 12-fixed rated at 500 lbs. per cornerGrille, Gloss Black header and grille insert bars with Black chrome accentsTailgate and bed rail protection capsSpare tire carrier lock Helps keep spare tire secure Winter Grille Cover May require additional optional equipmentPower sunroof Opens over the first row at the push of a buttonRetracts into the roofOffers tilt and slide features with express-open and -closeMay require additional optional equipmentFront license plate bracket Front bra...

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
  • 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
  • Wireless phone projection
  • For Apple CarPlay and Android Auto
  • Place and receive hands-free phone calls
  • Wi-Fi Hotspot capable
  • May require additional optional equipment
  • SiriusXM
  • SiriusXM with 360L Trial Subscription
  • GMC MultiPro Tailgate
  • Hitch area lighting
  • Power lock and release
  • CornerStep rear bumper
  • Located at each end of the rear bumper
  • Textured step pads to help provide secure footing
  • Spray-on bedliner
  • Includes GMC logo on all trims except PRO
  • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
  • Chrome mirror caps
  • 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
  • LED fog lamps
  • Single Rear Wheels
  • Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Rainsense automatic wipers
  • Cargo bed LED lighting
  • Provides light to find cargo in the bed
  • Rear wheelhouse liners
  • Deep-tinted glass
  • Provides added protection from sun and glare
  • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  • Body-color front bumper
  • IntelliBeam
  • Side Bed Step
  • Black textured step pads help provide secure footing
  • 20" LT275/65R20 all-terrain, blackwall tires
  • Black beltline moldings
  • Tailgate with EZ Lift assist, power lock & release
  • 18" LT275/70R18 all-terrain, blackwall spare tire
  • Body-color rear bumper
  • With integrated CornerSteps
  • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
  • 20" high gloss Black aluminum wheels
  • High gloss Black mirror caps
  • Body-color door handles
  • Cargo tie-downs
  • 12-fixed rated at 500 lbs. per corner
  • Grille, Gloss Black header and grille insert bars with Black chrome accents
  • Tailgate and bed rail protection caps
  • Spare tire carrier lock
  • Helps keep spare tire secure
  • Winter Grille Cover
  • Power sunroof
  • Retracts into the roof
  • Offers tilt and slide features with express-open and -close
  • Front license plate bracket
  • Smoked Amber LED roof marker lamps
  • Roof-mounted lamps near the front of the cab
  • Onyx Black
  • Power sliding rear window with rear defogger
  • Black power-retractable assist steps with LED perimeter lighting
  • Textured step pads help provide secure footing
  • Retracts when not in use
  • Deploy Running Board mode for car wash cleaning
  • LED perimeter lighting
  • Keyless Open and Start
  • Lockout protection helps you avoid locking keys in the vehicle
  • USB ports
  • (2) Charge ports located on rear of console
  • (2) Data/charge ports located inside center console
  • Rear air vents
  • Provides cabin comfort for rear occupants
  • Outside temperature display
  • Located in infotainment display
  • Front center console
  • Rear window defogger
  • Premium front floor liners with removable carpet insert
  • Seat trim, Perforated Front Leather seating surfaces
  • Steering-wheel mounted controls
  • Heated rear outboard seats
  • Passengers can manage heat settings with their own controls
  • Power windows with driver express-up/down
  • 10-way power front passenger seat
  • Includes 8-way power front passenger seat
  • Includes a 2-way power lumbar control
  • Compass
  • Located in instrument cluster
  • Power door locks
  • Assist handles
  • Front A-pillar mounted for Driver and Passenger
  • Rear B-pillar mounted
  • Heated driver and front outboard passenger seats
  • Individually controlled
  • 120-volt power outlet
  • 3-prong auxiliary household-style outlet
  • Located on the instrument panel
  • Manual tilt and telescoping steering column
  • Front bucket seats
  • You can always override the feature and take control
  • Power windows with rear express-down
  • Dual-zone automatic climate control
  • Allows individual climate settings for both driver and front passenger
  • 12.3" diagonal color Driver Information Center
  • High definition display provides crisp, premium appearance
  • (2) First row, located on console
  • 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)
  • 10-way power driver seat with power lumbar
  • Includes 8-way power driver seat
  • Wrapped steering wheel
  • Carpeted floor covering
  • Color-keyed to match the interior
  • Power windows with driver and front passenger express-up/down
  • If obstruction is detected, the anti-pinch feature will auto-reverse
  • 120-volt box-mounted power outlet
  • Located in the pickup bed
  • Driver memory
  • Premium rear floor liners with removable carpet insert
  • Ventilated driver and front passenger seats
  • Cooling feature includes both seatbacks and cushions
  • In-Vehicle Trailering App
  • Checklist
  • Trailer maintenance reminders
  • Trailer security alerts
  • Trailer mileage
  • Tow/haul reminder
  • Trailer electrical diagnostics
  • Wireless Charging
  • Uses induction technology for select portable electronic devices
  • Convenient charging location on the top of the center console
  • Theft-deterrent unauthorized entry system
  • Helps deter unauthorized entry, helping to protect your vehicle
  • Head-Up Display
  • Multi-color 15" diagonal Head-Up Display
  • Adjustable vertical position and brightness of the display
  • Universal Home Remote
  • 3-channel programmable
  • Rear Camera Mirror
  • The feature also allows brightness, vertical tilt and zoom adjustments
  • Upfitter switches
  • Jet Black with Kalahari accents, Perforated Front Leather seating surfaces
  • 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
  • Four wheel drive
  • Heavy-Duty Air Filter
  • Integrated trailer brake controller
  • Integrated with the antilock brake system (ABS)
  • Digital Variable Steering Assist
  • Skid plates
  • Help protect the front underbody, oil pan and transfer case
  • Fully boxed frame
  • Hydroformed front section
  • High-strength steel
  • Red vertical recovery hooks
  • Two front frame-mounted
  • 4-wheel antilock disc brakes
  • Brake pad wear indicator
  • Automatic locking rear differential
  • Off-Road suspension
  • Gooseneck / 5th Wheel Prep Package
  • Hitch platform to accept Gooseneck or 5th wheel hitch
  • Box mounted 7-pin trailer harness
  • 12,100 lbs. GVWR
  • Heavy-duty 730 cold-cranking amps battery
  • 70 Amp-hr
  • Maintenance-free with rundown protection and retained accessory power
  • 220-amp alternator
  • AT4 Preferred Package
  • Rear sliding power window
  • LED roof marker lamps
  • AT4 Preferred Equipment Group includes standard equipment
  • AT4 Premium Plus Package
  • Technology Package
  • AT4 high clearance step
  • 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
  • Trailering Information Label
  • LED Daytime Running Lamps
  • Signature LED Daytime Running Lamps
  • Following Distance Indicator
  • Designed to help you maintain a safe following distance
  • Rear Seat Reminder
  • Forward Collision Alert
  • 6 airbags
  • Dual-stage frontal airbags for driver and front outboard passenger
  • Head-curtain airbags for outboard seating positions
  • OnStar services capable
  • Safety Alert Seat
  • You can also switch to beeping crash avoidance alerts
  • Buckle to Drive
  • Trailering camera provisions
  • Includes connector for accessory wiring harness
  • Trailer Side Blind Zone Alert
  • 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
  • Tire Pressure Monitoring System with Tire Fill Alert
  • Rear Cross Traffic Alert
  • Hitch Guidance
  • Can help you line up the hitch to your trailer
  • Hitch View
  • Shows a close-up view of the trailer hitch
  • Seat Belt Adjustable Guide Loops
  • Front row only
  • 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 250 miles of Dunkirk, New York
Asking price$87,735Dealer asking price · 3 mi
Market value$82,545Market value · based on 19 comparable cars
vs. market High price+6.3%High price · based on 19 comparable cars

Where this price sits

Among the highest-priced · 5% of 19 similar listings ask more than this car.

$75,954lowest$87,800highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+6.3%
−25%Market value+25%
High price$5,190 above the market value of $82,545

Price range

$87,735
$75,954$87,800
19th lowest price of 20 similar listings within 250 milesTick marks the market value · range of 19 similar listings

AutosXchange Insights

  • Compared with 19 new 2026 GMC Sierra 3500 AT4 listings within 250 mi.
  • Priced $5,190 above the market value of 19 comparable cars — compare options, condition and history.
  • 19th lowest price of 20 similar listings within 250 miles.
  • About 3 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 26L390 — 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 6, 2026. No price change at this dealership since Nov 6 ($87,735).0 price changes at this dealership: $87,735 → $87,735.

$87.5k$87.6k$87.7k$87.8k$87.9k$88.0kNov 6Nov 7Nov 8Nov 9Nov 10

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 10); 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 AT4 · new · within 250 miles of Dunkirk, New York. Showing the 12 nearest of 19 comparable cars for sale, nearest first.

More GMC Sierra 3500 near Dunkirk

All years and trims. Nearest first.