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Legacy GMC · Slidell, LA

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

9 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 2500 HD
Trim4-Wheel AT4X
Stock number26G2587
Mileage9 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorOnyx Black
InteriorObsidian Rush, Full Grain Leather Seat Trim
Towing18500

Vehicle description

Contact Legacy Buick GMC today for information on dozens of vehicles like this 2026 GMC Sierra 2500HD AT4X. This GMC includes: GOOSENECK / 5TH WHEEL PREP PACKAGE GVWR, 11,350 LBS ALTERNATORS, DUAL, 220-AMPS PRIMARY, 170-AMPS AUXILIARY TRANSMISSION, 10-SPEED AUTOMATIC A/T 10-Speed A/T ONYX BLACK 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 *Note - For third party subscriptions or services, please contact the dealer for more information.* You appreciate the finer things in life, the vehicle you drive should not be the exception. Style, performance, sophistication is in a class of its own with this stunning GMC Sierra 2500HD AT4X. Handle any terrain with ease thanks to this grippy 4WD. Whether you're on a slick pavement or exploring the back country, you'll be able to do it with confidence. The 2026 GMC exterior is finished in a breathtaking Onyx Black, while being complemented by such a gorgeous Obsidian Rush interior. This color combination is stunning and absolutely beautiful! 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
  • Spray-on bedliner
  • Includes GMC logo on all trims except PRO
  • Rear wheelhouse liners
  • IntelliBeam
  • 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
  • 18" LT305/70R18 MT tires
  • Cab-mounted cargo area lamps
  • Activated by switch located on center switch bank
  • Illuminates the cargo bed area
  • Rainsense automatic wipers
  • LED fog lamps
  • Black beltline moldings
  • Tailgate with EZ Lift assist, power lock & release
  • 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
  • Body-color door handles
  • Body-color front bumper
  • Cargo bed LED lighting
  • Provides light to find cargo in the bed
  • Cargo tie-downs
  • 12-fixed rated at 500 lbs. per corner
  • 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
  • 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
  • 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
  • Power sunroof
  • Retracts into the roof
  • Offers tilt and slide features with express-open and -close
  • Grille (Gloss Black header and grille insert bars with Dark Nickel inserts.)
  • High gloss Black mirror caps
  • 18" machined aluminum wheel with High Gloss Black accents
  • Winter Grille Cover
  • Hard Folding Truck Bed Cover by RealTruck Advantage
  • Onyx Black
  • Power windows with driver express-up/down
  • Ventilated driver and front passenger seats
  • Individually controlled
  • Cooling feature includes both seatbacks and cushions
  • Theft-deterrent unauthorized entry system
  • Helps deter unauthorized entry, helping to protect your vehicle
  • USB ports
  • (2) Data/charge ports located inside center console
  • Keyless Open and Start
  • Lockout protection helps you avoid locking keys in the vehicle
  • Head-Up Display
  • Multi-color 15" diagonal Head-Up Display
  • Adjustable vertical position and brightness of the display
  • Steering-wheel mounted controls
  • Leather-wrapped steering wheel
  • Soft, supple leather trim adds comfort to your drive
  • Manual tilt and telescoping steering column
  • 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
  • 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
  • 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
  • Front bucket seats
  • Power windows with rear express-down
  • (2) First row, located on console
  • Rear Seat Reminder
  • 16-way power passenger seat with power lumbar and massage
  • Front center console
  • Universal Home Remote
  • 3-channel programmable
  • 16-way power driver seat with power lumbar and massage
  • Heated rear outboard seats
  • Passengers can manage heat settings with their own controls
  • Heated driver and front outboard passenger seats
  • Rear air vents
  • Provides cabin comfort for rear occupants
  • (2) Charge ports located on rear of console
  • Driver memory
  • 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
  • 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
  • Red vertical recovery hooks
  • Two front frame-mounted
  • 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)
  • Brake pad wear indicator
  • Four wheel drive
  • 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
  • OnStar services capable
  • Trailering camera provisions
  • Includes connector for accessory wiring harness
  • 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
  • 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
  • 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$90,750Dealer asking price · 9 mi
Market value$87,788Market value · based on 34 comparable cars
vs. market Fair price+3.4%Fair price · based on 34 comparable cars

Where this price sits

Among the highest-priced · 9% of 34 similar listings ask more than this car.

$79,529lowest$91,049highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+3.4%
−25%Market value+25%
Fair price$2,962 above the market value of $87,788

Price range

$90,750
$79,529$91,049
30th lowest price of 35 similar listings nationwideTick marks the market value · range of 34 similar listings

AutosXchange Insights

  • Compared with 34 new 2026 GMC Sierra 2500 4-Wheel AT4X listings nationwide.
  • Priced $2,962 above the market value of 34 comparable cars — compare options, condition and history.
  • 30th lowest price of 35 similar listings nationwide.
  • About 9 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 26G2587 — 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 ($90,750).

$90.5k$90.6k$90.7k$90.8k$90.9k$91.0kNov 6Nov 7Nov 8Nov 10Nov 11Nov 12

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 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 2500 4-Wheel AT4X · new · nationwide. Showing the 12 nearest of 34 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$495 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$495 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$196 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$90,750Same 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 AT4X7 miles · Legacy GMC · Slidell, LA · 0 mi away$90,750Same 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 AT4X7 miles · Legacy GMC · Slidell, LA · 0 mi away$91,049$299 more 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$299 more 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$299 more 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$79,529$11,221 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$10,661 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$80,367$10,383 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$80,367$10,383 less than this car

More GMC Sierra 2500 near Slidell

All years and trims. Nearest first.