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Legacy GMC · Slidell, LA

2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X

7 miles · truck · Listed yesterday on AutosXchange

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 2500 HD
Trim4-Wheel AT4X
Stock number26G2777
Mileage7 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorCoastal Dune
InteriorObsidian Rush, Full Grain Leather Seat Trim
Towing18500

Vehicle description

Legacy Buick GMC is excited to offer this 2026 GMC Sierra 2500HD AT4X. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE COASTAL DUNE GVWR, 11,350 LBS ALTERNATORS, DUAL, 220-AMPS PRIMARY, 170-AMPS AUXILIARY TRANSMISSION, 10-SPEED AUTOMATIC A/T 10-Speed A/T LPO, HARD FOLDING TRUCK BED COVER BY REALTRUCK ADVANTAGE Pickup Bed Tonneau Cover ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE Diesel Fuel 8 Cylinder Engine Turbocharged 3 YEARS SIRIUSXM Satellite Radio Requires Subscription *Note - For third party subscriptions or services, please contact the dealer for more information.* Taking the road less traveled has never been more fun than with this 4WD. With improved performance, mileage and acceleration, this 2026 4WD GMC Sierra 2500HD AT4X is king of the off-road. The look is unmistakably GMC, the smooth contours and cutting-edge technology of this GMC Sierra 2500HD AT4X will definitely turn heads. You can finally stop searching... You've found the one you've been looking for. Dealer Disclosure: Prices do not include state and local tax, title, license, notarial fees, convenience fees, documentary fees, and any finance charges. All prices, specifications and availability subject to change without notice. Contact dealer for most current information .Not available with special finance, lease and some other offers

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
  • 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
  • SiriusXM Trial Subscription
  • Place and receive hands-free phone calls
  • MultiPro Audio System by Kicker
  • Bluetooth® compatibility for wireless playback
  • 3.5mm and USB inputs for audio playbacks
  • A custom ABS baffle with full gasket sealing
  • A weatherproof amplifier hidden in the tailgate
  • SiriusXM with 360L Trial Subscription
  • Wireless phone projection
  • For Apple CarPlay and Android Auto
  • Wi-Fi Hotspot capable
  • May require additional optional equipment
  • 3 Years SiriusXM
  • Enjoy channels curated by DJs, personalities, and tastemakers
  • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  • Side Bed Step
  • Black textured step pads help provide secure footing
  • Body-color rear bumper
  • With integrated CornerSteps
  • Smoked Amber LED roof marker lamps
  • Roof-mounted lamps near the front of the cab
  • CornerStep rear bumper
  • Located at each end of the rear bumper
  • Textured step pads to help provide secure footing
  • 18" LT305/70R18 MT tires
  • Cab-mounted cargo area lamps
  • Activated by switch located on center switch bank
  • Illuminates the cargo bed area
  • IntelliBeam
  • Cargo tie-downs
  • 12-fixed rated at 500 lbs. per corner
  • GMC MultiPro Tailgate
  • Hitch area lighting
  • Power lock and release
  • Spray-on bedliner
  • Includes GMC logo on all trims except PRO
  • Rainsense automatic wipers
  • 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
  • Deep-tinted glass
  • Provides added protection from sun and glare
  • LED fog lamps
  • Black beltline moldings
  • Tailgate with EZ Lift assist, power lock & release
  • Grille (Gloss Black header and grille insert bars with Dark Nickel inserts.)
  • Body-color door handles
  • Body-color front bumper
  • Cargo bed LED lighting
  • Provides light to find cargo in the bed
  • Spare tire carrier lock
  • Helps keep spare tire secure
  • Tailgate and bed rail protection caps
  • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
  • Chrome mirror caps
  • AT4 and AT4X 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
  • Power sunroof
  • Retracts into the roof
  • Offers tilt and slide features with express-open and -close
  • Rear wheelhouse liners
  • 18" LT305/70R18 MT spare tire
  • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
  • LED taillamps with LED stop lights and animation
  • High gloss Black mirror caps
  • 18" machined aluminum wheel with High Gloss Black accents
  • Winter Grille Cover
  • Coastal Dune
  • Hard Folding Truck Bed Cover by RealTruck Advantage
  • Power windows with rear express-down
  • USB ports
  • (2) First row, located on console
  • Universal Home Remote
  • 3-channel programmable
  • 16-way power driver seat with power lumbar and massage
  • (2) Charge ports located on rear of console
  • Driver memory
  • Head-Up Display
  • Multi-color 15" diagonal Head-Up Display
  • Adjustable vertical position and brightness of the display
  • Assist handles
  • Front A-pillar mounted for Driver and Passenger
  • Rear B-pillar mounted
  • Premium rear floor liners with removable carpet insert
  • Rear window defogger
  • 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)
  • Seat trim, Full Grain Leather
  • Compass
  • Located in instrument cluster
  • Leather-wrapped steering wheel
  • Soft, supple leather trim adds comfort to your drive
  • Keyless Open and Start
  • Lockout protection helps you avoid locking keys in the vehicle
  • Steering-wheel mounted controls
  • Power windows with driver express-up/down
  • Ventilated driver and front passenger seats
  • Individually controlled
  • Cooling feature includes both seatbacks and cushions
  • Manual tilt and telescoping steering column
  • Power door locks
  • Outside temperature display
  • Located in infotainment display
  • 12.3" diagonal color Driver Information Center
  • High definition display provides crisp, premium appearance
  • Dual-zone automatic climate control
  • Allows individual climate settings for both driver and front passenger
  • 120-volt box-mounted power outlet
  • 3-prong auxiliary household-style outlet
  • Located in the pickup bed
  • Front bucket seats
  • Power windows with driver and front passenger express-up/down
  • If obstruction is detected, the anti-pinch feature will auto-reverse
  • Power sliding rear window with rear defogger
  • Premium front floor liners with removable carpet insert
  • Wireless Charging
  • Uses induction technology for select portable electronic devices
  • Convenient charging location
  • Rear Seat Reminder
  • 16-way power passenger seat with power lumbar and massage
  • Front center console
  • Heated rear outboard seats
  • Passengers can manage heat settings with their own controls
  • Theft-deterrent unauthorized entry system
  • Helps deter unauthorized entry, helping to protect your vehicle
  • Heated driver and front outboard passenger seats
  • Rear air vents
  • Provides cabin comfort for rear occupants
  • (2) Data/charge ports located inside center console
  • You can always override the feature and take control
  • 120-volt power outlet
  • Located on the instrument panel
  • Carpeted floor covering
  • Color-keyed to match the interior
  • Rear Camera Mirror
  • The feature also allows brightness, vertical tilt and zoom adjustments
  • Obsidian Rush, Full Grain Leather seat trim
  • Brake pad wear indicator
  • Four wheel drive
  • Red vertical recovery hooks
  • Two front frame-mounted
  • 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
  • 4-wheel antilock disc brakes
  • In-Vehicle Trailering App
  • Checklist
  • Trailer maintenance reminders
  • Trailer security alerts
  • Trailer mileage
  • Tow/haul reminder
  • Trailer electrical diagnostics
  • Skid Plates, front aluminum
  • Integrated trailer brake controller
  • Integrated with the antilock brake system (ABS)
  • Fully boxed frame
  • Hydroformed front section
  • High-strength steel
  • Skid Plates, Transfer case, steel
  • Driver-selectable e-locking rear differential
  • When activated, locks both rear wheels in unison
  • Increase traction in off-road situations
  • Off-Road suspension with 1.5" factory installed lift and Multimatic DSSV dampers
  • Front suspension kit composed of: Control Arms, Ball Joints, Knuckles
  • Digital Variable Steering Assist
  • Heavy-Duty Air Filter
  • Dual, 220 amp primary and 170 auxiliary amp alternators
  • Heavy-duty dual batteries with 1460 cold-cranking amps
  • 70 Amp-hr
  • Maintenance-free with rundown protection and retained accessory power
  • 11,350 lbs. GVWR
  • Emissions, Federal requirements
  • Gooseneck / 5th Wheel Prep Package
  • Hitch platform to accept Gooseneck or 5th wheel hitch
  • Box mounted 7-pin trailer harness
  • AT4X Preferred Equipment Group includes standard equipment
  • Signature LED Daytime Running Lamps
  • LED Daytime Running Lamps
  • Front and Rear Park Assist
  • These can help you park and avoid collisions
  • Rear Seat Belt Indicator
  • Trailer Tire Pressure and Temperature Sensors
  • Set of 4 sensors
  • Additional or replacement sensors are available as GM Accessory
  • System is capable of monitoring up to 6 wheels
  • OnStar services capable
  • Following Distance Indicator
  • Designed to help you maintain a safe following distance
  • Rear Cross Traffic Alert
  • 6 airbags
  • Dual-stage frontal airbags for driver and front outboard passenger
  • Head-curtain airbags for outboard seating positions
  • Teen Driver
  • Tire Pressure Monitoring System with Tire Fill Alert
  • Trailer Side Blind Zone Alert
  • Hitch View
  • Shows a close-up view of the trailer hitch
  • Hitch Guidance
  • Can help you line up the hitch to your trailer
  • Trailering Information Label
  • HD Surround Vision
  • Can help you park or avoid vehicles and objects
  • Safety Alert Seat
  • You can also switch to beeping crash avoidance alerts
  • 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

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$91,349Dealer asking price · 7 mi
Market value$87,788Market value · based on 38 comparable cars
vs. market+4.1%Not rated · stock photos only

Where this price sits

Among the highest-priced · 5% of 38 similar listings ask more than this car.

$79,529lowest$97,530highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+4.1%
−25%Market value+25%
Not rated · stock photos only$3,561 above the market value of $87,788

Price range

$91,349
$79,529$97,530
36th lowest price of 39 similar listings nationwideTick marks the market value · range of 38 similar listings

AutosXchange Insights

  • Compared with 38 new 2026 GMC Sierra 2500 4-Wheel AT4X listings nationwide.
  • Priced $3,561 above the market value of 38 comparable cars — compare options, condition and history.
  • 36th lowest price of 39 similar listings nationwide.
  • About 7 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 26G2777 — 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 14, 2026. No price change at this dealership since Nov 14 ($91,349).

$91.1k$91.2k$91.3k$91.4k$91.5k$91.6kNov 14Nov 15

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 15); 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 2500 4-Wheel AT4X · new · nationwide. Showing the 12 nearest of 38 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X8 miles · Legacy GMC · Slidell, LA · 0 mi away$90,255$1,094 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X8 miles · Legacy GMC · Slidell, LA · 0 mi away$90,255$1,094 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X8 miles · Legacy GMC · Slidell, LA · 0 mi away$90,554$795 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X9 miles · Legacy GMC · Slidell, LA · 0 mi away$90,750$599 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X7 miles · Legacy GMC · Slidell, LA · 0 mi away$90,750$599 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X7 miles · Legacy GMC · Slidell, LA · 0 mi away$90,750$599 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X7 miles · Legacy GMC · Slidell, LA · 0 mi away$91,049$300 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X8 miles · Legacy GMC · Slidell, LA · 0 mi away$91,049$300 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X3 miles · Legacy GMC · Slidell, LA · 0 mi away$91,049$300 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X7 miles · Legacy GMC · Slidell, LA · 0 mi away$91,349Same price2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X3 miles · Everett Buick GMC · Bryant, AR · 343 mi away$79,529$11,820 less than this car2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X vehicle photo2026 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4X3 miles · Everett Buick GMC · Bryant, AR · 343 mi away$80,089$11,260 less than this car

More GMC Sierra 2500 near Slidell

All years and trims. Nearest first.