2026 GMC Sierra 2500HD AT4 Truck Duramax V8 Turbodiesel
- Used
- Diesel
IT'S NOT REAL!
- "Must Finance" or "Must Trade" Discounts
- Rebates not everyone qualifies for
- Doc Fees, Electronic Fees, and Worthless Dealer Add-Ons
At Long-Lewis:
- NO Dealer Fees!
- NO Bogus Markups!
- NO Gimmicks!
- Just Add Tax and Title!
- Our Absolute BEST Price, Up-Front, Every Time.
- NO Dealer Fees, Hidden Fees or Bogus Mark Ups.
- Non-Commissioned Salespeople.
- 3 Day/300 Mile Money Back Guarantee.
The overview
- Exterior Color
- Coastal Dune
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 11,730 miles
- Body/Seating
- Truck/5 seats
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- VIN
- 1GT4UPEY0TF153850
- Stock Number
- P26SD236A
The highlights
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
- Front dual zone A/C
We can come to you

Video walkaround
Experience this vehicle via video call and ask us any questions you have.
Schedule a video call
Test drive at home
We’ll bring this vehicle to you for a no-obligation test drive.
Request a test drive
Home delivery
We’ll deliver the vehicle you want to your home and help you complete the paperwork.
Ask about delivery
The full specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Surround View Monitor: HD Surround Vision w/Hitch View yes
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 13.4"
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless Phone Charger: front
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Cylinder configuration: V-8
- Drive type: four-wheel
- Electric motor 1 torque: none
- Electric motor horsepower: none
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid electric powertrain type: none
- Hybrid system combined power torque: none
- Hybrid system net power: none
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Engine displacement: 6.6 L
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,027mm (79.8")
- Exterior length: 6,369mm (250.8")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Trailer Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Departure Warning warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: UltraSonic front and rear
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Security system
- Traction control
Notes from the dealer
When the job gets bigger and the road gets rougher, the 2026 GMC Sierra 2500HD AT4 answers the call. Built with serious towing power, premium comfort, and rugged off-road capability, this truck is ready for workdays, weekends, and everything in between.
ð'ª Heavy-Duty Performance
⢠Powerful Gas or Available Duramax® Diesel Engine
⢠Allison® Automatic Transmission
⢠Outstanding Towing Capability
⢠Exceptional Payload Capacity
⢠Integrated Trailer Technology
⢠Confident Heavy-Duty Performance
Built to handle demanding jobs while delivering a smooth, controlled ride.
ð" AT4 Off-Road Capability
⢠Factory Off-Road Suspension
⢠Four-Wheel Drive
⢠Skid Plates
⢠Hill Descent Control
⢠Off-Road Drive Modes
⢠Rancho® Shocks
⢠Rugged AT4 Engineering
Take on trails, job sites, and challenging terrain with confidence.
ð Bold AT4 Styling
⢠Exclusive AT4 Grille and Badging
⢠Premium Alloy Wheels
⢠LED Lighting
⢠Red Recovery Hooks
⢠Aggressive Stance
⢠Signature GMC Design
A truck that looks as capable as it performs.
ð Premium Interior Comfort
⢠Leather-Appointed Seating
⢠Heated & Ventilated Front Seats
⢠Heated Rear Seats
⢠Power Adjustable Front Seats
⢠Dual-Zone Automatic Climate Control
⢠Spacious Crew Cab Interior
Premium comfort designed for long hauls and everyday driving.
ð"± Advanced Technology
⢠Large GMC Infotainment Touchscreen
⢠Apple CarPlay® & Android Autoâ¢
⢠Wireless Smartphone Integration
⢠Premium Audio System
⢠Bluetooth® Connectivity
⢠Multiple Camera Views for Towing
⢠Wireless Charging
Stay connected, informed, and in control wherever the road leads.
ð¡ Advanced Safety Features
⢠Forward Collision Alert
⢠Automatic Emergency Braking
⢠Lane Departure Warning
⢠Following Distance Indicator
⢠Rear Cross Traffic Alert
⢠HD Surround Vision
⢠GMC Pro Safety Technologies
Designed to help provide confidence whether towing, traveling, or commuting.
ð"¥ Why This Sierra 2500HD AT4?
â" Premium AT4 Off-Road Package
â" Serious Towing & Hauling Capability
â" Luxury-Level Interior Comfort
â" Advanced Technology & Safety
â" Aggressive GMC Styling
â" Ready for Work, Play, and Adventure
ð" Available NOW at Long-Lewis Auto Group
ð" 334-365-2272
â" No Doc Fees
â" Non-Commission Sales Team
â" Fully Inspected Vehicles
â" Easy, Straightforward Financing
â" Family-Owned and Trusted in Alabama
If you're looking for a heavy-duty truck that delivers premium comfort, legendary capability, advanced technology, and off-road confidence, this 2026 GMC Sierra 2500HD AT4 is ready for whatever comes next.
ð" Hashtags
#GMCSierra2500HD #SierraAT4 #GMCTrucks #AT4 #HeavyDutyTruck #Duramax #TruckLife #OffRoadReady
#TowingPower #BuiltToWork #AdventureReady #LuxuryTruck #DieselTruck #TruckGoals
#CarsOfInstagram #TruckGram #UsedTrucks #AutoSales #VehicleDeals #CarShopping
#PrattvilleAL #MontgomeryAL #MillbrookAL #WetumpkaAL #RiverRegion #CentralAlabama #AlabamaDeals
#LongLewis #LongLewisAutoGroup #NoDocFees #NonCommissionSales #EasyFinancing #FamilyOwned #ShopLocal #TestDriveToday
Peace of mind
Vehicle history report
- Title information
- Odometer readings
- Accident data (if applicable)
- Service history
- Vehicle usage
- Recall information (if applicable)
- Warranty status



