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Auto Mall · Brattleboro, VT

2026 GMC Sierra 3500 HD AT4

5 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 3500 HD
TrimAT4
Stock numberG26245
Mileage5 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorSummit White
InteriorJet Black with Kalahari accents, Perforated Front
Doors4

Vehicle description

Summit White 2026 GMC Sierra 3500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather. This NEW 2026 Summit White GMC Sierra 3500HD AT4 4WD is well equipped and includes these features and benefits: AT4 Preferred Package (LED Smoked Amber Roof Marker Lamps, Power Sliding Rear Window with Defogger, and Universal Home Remote), AT4 Premium Plus Package (Off-Road High Clearance Step and Power Sunroof), Gooseneck/5th Wheel Prep Package, Snow Plow Prep/Camper Package (220 Amp Alternator), Technology Package (Auto-Dimming Inside Rearview Mirror with Camera and Multicolor 15 Diagonal Head-Up Display), X31 Off-Road Package (Hill Descent Control and Off-Road Suspension), 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster with Lumbar, 10-Way Power Passenger Seat Adjuster with Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2 USB Ports, 2-Speed Active Transfer Case, 4-Wheel Disc Brakes, 7 Speakers, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera with Two Trailer Camera Provisions, Bose Premium 7-Speaker Sound System, Brake assist, Buckle to Drive, Bumpers: body-color, Compass, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electronic Stability Control, Emergency communication system: OnStar Services capable, Exterior Parking Camera Rear, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Pedestrian Braking, Front Rain-Sensing Wipers, Front reading lights, Front wheel independent suspension, Fully automatic headlights, GMC Premium 13.4 Diagonal Information Display, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver and Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp-Hour Battery, High Idle Switch, Hitch Guidance with Hitch View, Illuminated entry, IntelliBeam Automatic High Beam on/Off, Keyless Open and Start, Lane Departure Warning System, LED Cargo Area Lighting, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Front Leather Seat Trim, Pickup Bed, Power door mirrors, Power driver seat, Power Front Windows with Passenger Express Up/Down, Power passenger seat, Power steering, Power windows, Premium audio system: Premium GMC Infotainment System, Premium Front Floor Liners with Removable Carpet Insert, Premium Rear Floor Liners with Removable Carpet Insert, Push Button Start, Radio: AM/FM Stereo with Premium GMC Infotainment System, Rain sensing wipers, Rear Cross Traffic Alert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, Security system, SiriusXM with 360L Trial Subscription, Speed control, Speed-sensing steering, Split folding rear seat, Spray-on Pickup Bedliner with GMC Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Tilt steering wheel, Traction control, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Trip computer, Turn signal indicator mirrors, We also have a $1000 purchase allowance . We

Features & options (149)

  • Basic
  • Corrosion
  • Maintenance
  • Roadside Assistance
  • Max seating capacity
  • Fuel System
  • Fuel tank capacity
  • Horsepower
  • Towing capacity
  • 13.4" diagonal GMC Premium Infotainment System with Google built-in
  • Bluetooth
  • Bose Premium Sound System
  • SiriusXM with 360L Trial Subscription
  • Wi-Fi Hotspot capable
  • Wireless phone projection
  • 18" LT275/70R18 all-terrain, blackwall spare tire
  • 20" LT275/65R20 BF Goodrich off-road T/A K blackwall tires
  • 20" high gloss Black aluminum wheels
  • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
  • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  • Black beltline moldings
  • Black power-retractable assist steps with LED perimeter lighting
  • Body-color door handles
  • Body-color front bumper
  • Body-color rear bumper
  • Cargo bed LED lighting
  • Cargo tie-downs
  • CornerStep rear bumper
  • Deep-tinted glass
  • Front license plate bracket
  • GMC MultiPro Tailgate
  • High gloss Black mirror caps
  • IntelliBeam
  • LED fog lamps
  • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
  • Power sliding rear window with rear defogger
  • Power sunroof
  • Rainsense automatic wipers
  • Rear wheelhouse liners
  • Side Bed Step
  • Smoked Amber LED roof marker lamps
  • Spare tire carrier lock
  • Spray-on bedliner
  • Tailgate and bed rail protection caps
  • Tailgate with EZ Lift assist, power lock & release
  • Winter Grille Cover
  • 10-way power driver seat with power lumbar
  • 10-way power front passenger seat
  • 12.3" diagonal color Driver Information Center
  • 120-volt box-mounted power outlet
  • 120-volt power outlet
  • Adaptive Cruise Control
  • Assist handles
  • Carpeted floor covering
  • Compass
  • Driver memory
  • Dual-zone automatic climate control
  • Front bucket seats
  • Front center console
  • Head-Up Display
  • Heated driver and front outboard passenger seats
  • Heated rear outboard seats
  • Heated steering wheel
  • In-Vehicle Trailering App
  • Keyless Open and Start
  • Manual tilt and telescoping steering column
  • Outside temperature display
  • Power door locks
  • Power windows with driver and front passenger express-up/down
  • Power windows with driver express-up/down
  • Power windows with rear express-down
  • Premium front floor liners with removable carpet insert
  • Premium rear floor liners with removable carpet insert
  • Rear Camera Mirror
  • Rear air vents
  • Rear window defogger
  • Remote Start
  • Steering-wheel mounted controls
  • Theft-deterrent unauthorized entry system
  • USB ports
  • Universal Home Remote
  • Up-level rear seat with storage package
  • Upfitter switches
  • Ventilated driver and front passenger seats
  • Wireless Charging
  • Wrapped steering wheel
  • 10-speed automatic transmission
  • 12,100 lbs. GVWR
  • 220-amp alternator
  • 3.42 rear axle ratio
  • 4-wheel antilock disc brakes
  • 6.6L Duramax Turbo-Diesel V8 engine
  • Air filtration monitoring
  • Automatic locking rear differential
  • Autotrac 2-speed transfer case with push button controls
  • Brake pad wear indicator
  • Capped fuel fill
  • Diesel exhaust brake
  • Digital Variable Steering Assist
  • Engine block heater
  • External auxiliary transmission oil cooler
  • External engine oil cooler
  • Fully boxed frame
  • Gooseneck / 5th Wheel Prep Package
  • Heavy-Duty Air Filter
  • Heavy-duty 730 cold-cranking amps battery
  • High idle switch
  • Integrated trailer brake controller
  • Off-Road suspension
  • Pickup bed
  • Push Button Start
  • Red vertical recovery hooks
  • Skid plates
  • Trailering Information Label
  • LED Daytime Running Lamps
  • Signature LED Daytime Running Lamps
  • 6 airbags
  • Bed View Camera
  • Buckle to Drive
  • Following Distance Indicator
  • Forward Collision Alert
  • Front Pedestrian Braking
  • Front and Rear Park Assist
  • HD Surround Vision
  • Hitch Guidance
  • Hitch View
  • Lane Departure Warning
  • OnStar Basics
  • OnStar services capable
  • Rear Cross Traffic Alert
  • Rear Seat Belt Indicator
  • Rear Seat Reminder
  • Safety Alert Seat
  • Seat Belt Adjustable Guide Loops
  • Teen Driver
  • Tire Pressure Monitoring System with Tire Fill Alert
  • Trailer Side Blind Zone Alert
  • Trailering camera provisions
  • Automatic Emergency Braking
  • Hill Descent Control
  • StabiliTrak, electronic stability control system with traction control
  • AT4 Preferred Package
  • AT4 Premium Plus Package
  • ProGrade Trailering System
  • Sierra HD Pro Safety
  • Snow Plow Prep / Camper Package
  • Technology Package
  • Trailering Package
  • X31 Off-Road Package

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 Brattleboro, Vermont
Asking price$88,139Dealer asking price · 5 mi
Market value$86,068Market value · based on 12 comparable cars
vs. market Fair price+2.4%Fair price · based on 12 comparable cars

Where this price sits

Among the highest-priced · 17% of 12 similar listings ask more than this car.

$83,117lowest$89,623highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+2.4%
−25%Market value+25%
Fair price$2,071 above the market value of $86,068

Price range

$88,139
$83,117$89,623
11th lowest price of 13 similar listings within 50 milesTick marks the market value · range of 12 similar listings

AutosXchange Insights

  • Compared with 12 new 2026 GMC Sierra 3500 AT4 listings within 50 mi.
  • Priced $2,071 above the market value of 12 comparable cars — compare options, condition and history.
  • 11th lowest price of 13 similar listings within 50 miles.
  • About 5 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # G26245 — 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 ($88,139).0 price changes at this dealership: $88,139 → $88,139.

$87.9k$88.0k$88.1k$88.2k$88.3k$88.4kNov 6Nov 7Nov 8Nov 9Nov 10Nov 11

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); 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 50 miles of Brattleboro, Vermont. All 12 comparable cars for sale, nearest first.

More GMC Sierra 3500 near Brattleboro

All years and trims. Nearest first.