Alpine Buick GMC · Littleton, CO

2026 GMC Sierra 2500 HD Denali

6 miles · truck

1 / 48 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimDenali

VIN1GT4UREYXTF127638

Stock numberTF127638

Mileage6 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorBlack

InteriorJet Black, Forge Perforated Leather Seat Trim

Towing20000

Vehicle description

Thank you for choosing Alpine Buick GMC, this Onyx Black 2026 GMC Sierra 2500HD Denali is a great choice! Checkout the following: Transparent Pricing: At $87,299, what you see is what you pay. Customer-First Service: Our award-winning team treats you like family, backed by an excellent customer satisfaction rating. NOTABLE FEATURES AND OPTIONS YOU SHOULD KNOW ABOUT: EMISSIONS, COLORADO, CONNECTICUT, DELAWARE, MAINE, MARYLAND, MASSACHUSETTS, MINNESOTA, NEVADA, NEW JERSEY, NEW MEXICO, NEW YORK, OREGON, PENNSYLVANIA, RHODE ISLAND, VERMONT AND WASHINGTON STATE REQUIREMENTS, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, TRANSMISSION, 10-SPEED AUTOMATIC, GVWR, 11,750 LBS. (5330 KG), REAR AXLE, 3.42 RATIO, WHEELS, 20" (50.8 CM) ULTRA-BRIGHT MACHINED WHEELS, TIRES, LT275/65R20 ALL-TERRAIN, BLACKWALL, ONYX BLACK, SEATS, FRONT BUCKET, JET BLACK, FORGE PERFORATED LEATHER SEAT TRIM, AUDIO SYSTEM, 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE, DENALI RESERVE PACKAGE, MAX TRAILERING PACKAGE, TECHNOLOGY PACKAGE, LPO, BLACK BADGING PACKAGE, ENGINE BLOCK HEATER, ALTERNATOR, 220 AMP, HIGH IDLE SWITCH, GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH., EXHAUST BRAKE, SUNROOF, POWER, LPO, CARGO TIE-DOWN RINGS, SET OF 4, WINTER GRILLE COVER, LPO, BLACK GMC EMBLEMS, LPO, BLACK SIERRA NAMEPLATES, LICENSE PLATE KIT, FRONT, INCANDESCENT LIGHTING, PREMIUM FLOOR LINERS WITH REMOVABLE CARPET INSERT, FRONT, PREMIUM FLOOR LINERS WITH REMOVABLE CARPET INSERT, REAR, LPO, SPORT PEDAL COVER KIT, MULTICOLOR 15" DIAGONAL HEAD-UP DISPLAY, REAR CAMERA MIRROR Max Trailering Package ($2,085 value)11,750 lbs (5,330 Kg) GVWRGooseneck/5th Wheel Prep PackagePreferred Equipment Group 5SASiriusXM with 360L Trial SubscriptionPower Sliding Rear Window with DefoggerPower Front Passenger Windows with Express Up/downDeep-Tinted GlassKeyless Open and StartRear Wheelhouse LinersPush Button StartRemote Vehicle Starter SystemElectric Rear-Window DefoggerFront Rain-Sensing WipersSpray-On Pickup Bedliner with GMC LogoFloor-Mounted Center ConsoleSignature Chrome Denali GrilleSafety Alert SeatWireless ChargingHeated Driver and Front Outboard Passenger SeatsHeated 2nd Row Outboard Seats120-Volt Bed Mounted Power Outlet120-Volt Instrument Panel Power OutletVentilated Driver and Front Passenger SeatsManual Tilt-Wheel/telescoping Steering Column2-Speed Active Transfer CaseSierra HD Pro SafetyWireless Phone ProjectionProGrade Trailering SystemTrailer Cam Provisions and Trailer Viewing SoftwareLED Smoked Amber Roof Marker Lamps2 Charge/data USB Ports Inside Center Console2 USB Ports2 Charge-Only Rear USB PortsUltrasonic Front and Rear Park AssistOnStar Services CapableLED Cargo Area LightingRear Cross Traffic AlertUniversal Home RemoteSteering Wheel Audio ControlsTrailer Side Blind Zone AlertBose Premium 7-Speaker Sound SystemUnauthorized Entry Theft-Deterrent SystemHD Surround VisionBed View Camera with Two Trailer Camera ProvisionsPolished Exhaust TipX31 Off-Road PackageDenali Reserve Package ($1,835 value)Power SunroofTechnology PackageBlack Badging PackageBlack Sierra NameplatesBlack GMC Emblems Safety and Security Forward collision mitigation - Forward thinking. You look away for just a second and suddenly the vehicle in front of you has stopped. That's when the forward collision mitigation system comes to life. When it senses an impending impact, it will activate a combination of features to help prevent or reduce the severity of an accident. Forward collision mitigation is always looking ahead. Pedestrian impact prevention - An extra step toward safety. Pedestrians don't always stop, look, and listen, but with Pedestrian Impact Prevention, your vehicle is equipped to better see them and avoid them. This system constantly monitors the road ahead to identify and track pedestrians. It projects that image to an interior display screen, AND should an impact become l

Features & options (250)

Adaptive Cruise Control
Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
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
Place and receive hands-free phone calls
Wi-Fi Hotspot capable
May require additional optional equipment
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
SiriusXM with 360L Trial Subscription
SiriusXM Trial Subscription
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
Body-color rear bumper
With integrated CornerSteps
Grille (Signature Chrome Denali grille.)
6" Chrome rectangular assist steps (factory installed)
Textured step pads help provide secure footing
LED fog lamps
Spare tire carrier lock
Helps keep spare tire secure
Tailgate and bed rail protection caps
IntelliBeam
Rear wheelhouse liners
Smoked Amber LED roof marker lamps
Roof-mounted lamps near the front of the cab
20" LT275/65R20 all-terrain, blackwall tires
20" Ultra Bright machined aluminum wheels with bright chrome inserts
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
18" LT275/70R18 all-terrain, blackwall spare tire
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
LED taillamps with LED stop lights and animation
Side Bed Step
Black textured step pads help provide secure footing
GMC MultiPro Tailgate
Power lock and release
Rainsense automatic wipers
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
Deep-tinted glass
Provides added protection from sun and glare
Body-color front bumper
Spray-on bedliner
Includes GMC logo on all trims except PRO
Chrome mirror caps
Chrome beltline moldings
Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
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
Cargo bed LED lighting
Provides light to find cargo in the bed
Chrome door handles
Cargo tie-downs
12-fixed rated at 500 lbs. per corner
Cab-mounted cargo area lamps
Activated by switch located on center switch bank
Illuminates the cargo bed area
Winter Grille Cover
Cargo tie-downs (set of 4)
Power sunroof
Retracts into the roof
Offers tilt and slide features with express-open and -close
Front license plate bracket
Onyx Black
Rear air vents
Provides cabin comfort for rear occupants
Power windows with driver and front passenger express-up/down
If obstruction is detected, the anti-pinch feature will auto-reverse
Wrapped steering wheel
Carpeted floor covering
Color-keyed to match the interior
Ventilated driver and front passenger seats
Individually controlled
Cooling feature includes both seatbacks and cushions
Steering-wheel mounted controls
Power door locks
12-way power front passenger seat
Includes 8-way power front passenger seat
Includes a 4-way power lumbar control
Compass
Located in instrument cluster
Driver memory
12.3" diagonal color Driver Information Center
High definition display provides crisp, premium appearance
120-volt box-mounted power outlet
3-prong auxiliary household-style outlet
Located in the pickup bed
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)
Power windows with rear express-down
Power sliding rear window with rear defogger
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
Manual tilt and telescoping steering column
Keyless Open and Start
Lockout protection helps you avoid locking keys in the vehicle
Power windows with driver express-up/down
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
Front bucket seats
USB ports
(2) Data/charge ports located inside center console
Heated rear outboard seats
Passengers can manage heat settings with their own controls
Outside temperature display
Located in infotainment display
You can always override the feature and take control
Rear window defogger
Universal Home Remote
3-channel programmable
Wireless Charging
Uses induction technology for select portable electronic devices
Convenient charging location
Inside rearview auto-dimming mirror
Rear Seat Reminder
Seat trim, Forge Perforated Leather
(2) First row, located on console
(2) Charge ports located on rear of console
Heated driver and front outboard passenger seats
120-volt power outlet
Located on the instrument panel
12-way power driver seat
Includes 8-way power driver seat
Includes 4-way power lumbar
Front center console
Head-Up Display
Multi-color 15" diagonal Head-Up Display
Adjustable vertical position and brightness of the display
Sport pedal cover set
Rear Camera Mirror
The feature also allows brightness, vertical tilt and zoom adjustments
Premium rear floor liners with removable carpet insert
Premium front floor liners with removable carpet insert
1-Year MobileService+
Jet Black, Forge Perforated Leather seat trim
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
4-wheel antilock disc brakes
Hill Descent Control
Uses antilock braking to help provide a smooth, controlled descent
Activates by pushing a button below the instrument panel
Four wheel drive
Heavy-Duty Air Filter
Automatic locking rear differential
Chrome 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
Brake pad wear indicator
Fully boxed frame
Hydroformed front section
High-strength steel
Off-Road suspension
In-Vehicle Trailering App
Checklist
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Digital Variable Steering Assist
Skid plates
Help protect the front underbody, oil pan and transfer case
11,750 lbs. GVWR
Heavy-duty dual batteries with 1460 cold-cranking amps
70 Amp-hr
Maintenance-free with rundown protection and retained accessory power
220-amp alternator
Gooseneck / 5th Wheel Prep Package
Hitch platform to accept Gooseneck or 5th wheel hitch
Box mounted 7-pin trailer harness
Max Trailering Package
3500 HD Frame
3500 HD Leaf Springs
12" Rear axle
3500 HD Shock Package
Gooseneck / 5th Wheel Prep provisions
Bed stamped holes with caps installed
Denali Reserve Package
Technology Package
Sunroof
Denali Preferred Equipment Group includes standard equipment
AT4 Preferred Package on AT4
Option/package discount
3 Years OnStar One
Safety Services, Wi-Fi, and In-Vehicle Apps, all connected by OnStar
Info at OnStar.com/plans
Signature LED Daytime Running Lamps
LED Daytime Running Lamps
Trailering camera provisions
Includes connector for accessory wiring harness
Seat Belt Adjustable Guide Loops
Front row only
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
Forward Collision Alert
Bed View Camera
Includes 2 Trailer Camera Provisions
Following Distance Indicator
Designed to help you maintain a safe following distance
OnStar services capable
Teen Driver
Hitch View
Shows a close-up view of the trailer hitch

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 Littleton, Colorado

Asking price$84,322Dealer asking price · 6 mi

Market value$84,322Market value · based on 33 comparable cars

vs. market Fair price0.0%Fair price · based on 33 comparable cars

Where this price sits

In the typical middle range · 42% of 33 similar listings ask more than this car.

Market value $84,322

This car$84,322

$77,499lowest$90,336highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$0 above the market value of $84,322

Price range

$77,499$90,336

13th lowest price of 34 similar listings within 50 milesTick marks the market value · range of 33 similar listings

AutosXchange Insights

Compared with 33 new 2026 GMC Sierra 2500 Denali listings within 50 mi.
13th lowest price of 34 similar listings within 50 miles.
About 6 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # TF127638 — 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 8, 2026. No price change at this dealership since Nov 8 ($84,322).

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 13); 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 Denali · new · within 50 miles of Littleton, Colorado. Showing the 12 nearest of 33 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD Denali for sale at Alpine Buick GMC in Littleton, CO

Fair price

48 photos