Auto Mall · Brattleboro, VT

2026 GMC Sierra 3500 HD AT4

5 miles · truck

1 / 20 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 3500 HD

TrimAT4

VIN1GT4UVEY0TF373994

Stock numberG26296

Mileage5 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorOnyx Black

InteriorJet Black with Kalahari accents, Perforated Front

Doors4

Vehicle description

Onyx Black 2026 GMC Sierra 3500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.

Features & options (143)

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
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
Off-Road High Clearance Steps
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
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
Dual, 220 amp primary and 170 auxiliary amp alternators
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
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
Snow Plow Prep / Camper Package
Technology 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$87,876Dealer asking price · 5 mi

Market value$86,068Market value · based on 12 comparable cars

vs. market Fair price+2.1%Fair price · based on 12 comparable cars

Where this price sits

In the typical middle range · 42% of 12 similar listings ask more than this car.

Market value $86,068

This car$87,876

$83,117lowest$89,623highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$1,808 above the market value of $86,068

Price range

$83,117$89,623

8th 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 $1,808 above the market value of 12 comparable cars — compare options, condition and history.
8th 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 # G26296 — 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 ($87,876).

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 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 AT4 · new · within 50 miles of Brattleboro, Vermont. All 12 comparable cars for sale, nearest first.

2026 GMC Sierra 3500 HD AT4 for sale at Auto Mall in Brattleboro, VT

Fair price

27 photos