Auto Town GMC · Gladstone, OR

2026 GMC Sierra 3500 HD Crew Cab Standard Box 4-Wheel Drive AT4

6 miles · truck

1 / 24 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 3500 HD

Trim4-Wheel AT4

VIN1GT4UVEY2TF267546

Stock numberG26320

Mileage6 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorSummit White

Towing20000

Vehicle description

The 2026 GMC Sierra 3500HD AT4 represents premium heavy-duty capability wrapped in refined design. This white crew cab with jet black and Kalahari leather interior combines legendary Duramax 6.6L V8 turbodiesel power with the sophisticated features that define the AT4 lineup. With 4WD and a 10-speed automatic transmission, this truck is engineered to handle demanding work and towing while delivering the comfort you expect from GMC's top-tier trucks. - Duramax 6.6L V8 Turbodiesel with 10-Speed Automatic - Gooseneck/5th Wheel Prep Package - AT4 Premium Plus Package - Dual 220-Amp Primary and 170-Amp Auxiliary Alternators - Heated and Ventilated Front Seats with 10-Way Power Adjusters - Premium GMC Infotainment System with 13.4 Display and Wireless Phone Projection - Bose Premium 7-Speaker Sound System with SiriusXM (3 Years Included) - HD Surround Vision with Bed View and Trailer Cameras - Engine Block Heater and High Idle Switch - Cargo Tie-Down Rings and Upfitter Switch Kit (5) The AT4 Premium Plus Package elevates this truck with technology and comfort designed for serious work and weekend adventures alike. Standard safety features including automatic emergency braking, lane departure warning, and a full suite of airbags keep you protected on every journey. The off-road suspension and X31 package deliver enhanced capability, while trailer pressure monitors and hitch guidance make towing intuitive and secure. Come experience the power, precision, and prestige of the Sierra 3500HD AT4. This is a truck built for those who demand more from their vehicles. Price includes: $2000 - GMC Bonus Cash. Exp. 11/30/2026 $2500 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026

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
Cargo bed LED lighting
Provides light to find cargo in the bed
Rainsense automatic wipers
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
Front and rear Black GMC emblems
Black nameplates
Add a personalized feel to your vehicle's exterior
Cargo tie-downs (set of 4)
Off-Road High Clearance Steps
Textured step pads help provide secure footing
Power sunroof
Retracts into the roof
Offers tilt and slide features with express-open and -close
Summit White
Front license plate bracket
Smoked Amber LED roof marker lamps
Roof-mounted lamps near the front of the cab
Power sliding rear window with rear defogger
USB ports
(2) Charge ports located on rear of console
(2) Data/charge ports located inside center console
Outside temperature display
Located in infotainment display
Front center console
Keyless Open and Start
Lockout protection helps you avoid locking keys in the vehicle
Rear air vents
Provides cabin comfort for rear occupants
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
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
Power windows with rear express-down
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
3 Years SiriusXM
Enjoy channels curated by DJs, personalities, and tastemakers
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
Heavy-Duty Air Filter
Four wheel drive
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
Dual, 220 amp primary and 170 auxiliary amp alternators
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
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
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
Front and Rear Park Assist

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

AutosXchange Intel

Vehicle price analysis

Live listings · nationwide

Asking price$91,939Dealer asking price · 6 mi

Market value$91,059Market value · based on 13 comparable cars

vs. market Fair price+1.0%Fair price · based on 13 comparable cars

Where this price sits

Among the highest-priced · 15% of 13 similar listings ask more than this car.

Market value $91,059

This car$91,939

$77,962lowest$92,584highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$880 above the market value of $91,059

Price range

$77,962$92,584

12th lowest price of 14 similar listings nationwideTick marks the market value · range of 13 similar listings

AutosXchange Insights

Compared with 13 new 2026 GMC Sierra 3500 4-Wheel AT4 listings nationwide.
Priced $880 above the market value of 13 comparable cars — compare options, condition and history.
12th lowest price of 14 similar listings nationwide.
About 6 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # G26320 — 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 ($91,939).

Market activity: 2027 Ram 2500 prices nationally: 30.5% of listings cut in 48 hours

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 4-Wheel AT4 · new · nationwide. Showing the 12 nearest of 13 comparable cars for sale, nearest first.

Stock photo

7 photos