Brennan Buick GMC · Plattsburgh, NY

2026 GMC Sierra 2500 HD Denali Ultimate

1 miles · truck

1 / 48 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimDenali Ultimate

VIN1GT4UXEYXTF286907

Stock number260210

Mileage1 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

Horsepower470

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorSummit White

InteriorAlpine Umber, Full Grain Leather seat trim

Doors4

Towing18500

Vehicle description

At Brennan Buick GMC, we're here for you throughout the life of your vehicle. If you're in the market for a new or used truck, SUV, or car, visit our dealership to see the best that Brennan Buick GMC has to offer. - Duramax 6.6L V8 Turbodiesel Engine with 10-Speed Automatic - 4WD with 2-Speed Active Transfer Case - Bose Premium Series 12-Speaker System with SiriusXM 360L - Premium GMC Infotainment System with Apple CarPlay and Android Auto - Multicolor 15 Diagonal Head-Up Display - Bed View Camera with Trailer Camera Provisions - HD Surround Vision with Ultrasonic Front and Rear Park Assist - 16-Way Power Driver and Passenger Seats with Lumbar Support - Full Grain Leather Seat Trim with Heated and Ventilated Front Seats - Heated Rear Seats and 2nd Row Outboard Seating - Power Moonroof and Power Sliding Rear Window - Wireless Charging and Wireless Phone Projection - Gooseneck/5th Wheel Prep Package and Snow Plow Prep/Camper Package - Technology Package with Advanced Driver Assistance Features - 20 Ultra-Bright Machined Aluminum Wheels This 2026 GMC Sierra 2500HD Denali Ultimate in white represents a premium heavy-duty truck built for demanding work and refined daily driving. The Duramax 6.6L V8 Turbodiesel engine paired with the 10-Speed Automatic transmission delivers the capability you need for towing and hauling, while the 4WD system with 2-Speed Active Transfer Case ensures confident performance across varied terrain and weather conditions. The Denali Ultimate trim emphasizes luxury throughout the cabin. Full grain leather seat trim, 16-way power adjustable driver and passenger seats with lumbar support, and heated and ventilated front seats create a comfortable environment for long drives. Heated rear seats extend that comfort to all occupants. The genuine wood dashboard and door panel inserts, combined with the leather steering wheel, establish an upscale atmosphere uncommon in the heavy-duty segment. Technology integration is comprehensive on this model. The Premium GMC Infotainment System connects seamlessly with Apple CarPlay and Android Auto, while the Bose Premium Series 12-Speaker System with SiriusXM 360L delivers quality audio throughout the cabin. A multicolor 15 diagonal head-up display presents essential driving information directly in your line of sight. Wireless charging and wireless phone projection add modern convenience to your daily routine. Safety and visibility features prioritize protection on every journey. The HD Surround Vision system, bed view camera with trailer camera provisions, and ultrasonic front and rear park assist help you navigate tight spaces with confidence. Advanced driver assistance features including automatic emergency braking, forward collision alert, front pedestrian braking, and rear cross traffic alert work together to help prevent accidents. Hitch guidance with hitch view and trailer side blind zone alert specifically support your towing operations. This truck comes equipped with specialty packages that expand its versatility. The Gooseneck/5th Wheel Prep Package and Snow Plow Prep/Camper Package demonstrate the factory's commitment to supporting diverse work applications. Additional features such as the block heater, dual heavy-duty 70-amp battery, and 220-amp alternator ensure reliable operation in demanding conditions. The spray-on pickup bedliner with GMC logo protects your cargo area from wear and damage. Visit us today to experience this 2026 Sierra 2500HD Denali Ultimate firsthand and discover how its combination of capability, luxury, and technology can serve your needs. Price includes: $2000 - Bonus Cash. Exp. 11/30/2026

Features & options (149)

Basic
Corrosion
Maintenance
Roadside Assistance
Max seating capacity
Fuel System
Fuel tank capacity
Horsepower
Towing capacity
13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
MultiPro Audio System by Kicker
SiriusXM with 360L Trial Subscription
Wi-Fi Hotspot capable
Wireless phone projection
18" LT275/70R18 all-terrain, blackwall spare tire
20" LT275/65R20 all-terrain, blackwall tires
20" Ultra Bright machined aluminum wheels with gloss Black inserts
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Body color wheel arch moldings
Body-color front bumper
Body-color rear bumper
Cab-mounted cargo area lamps
Cargo bed LED lighting
Cargo tie-downs
Chrome beltline moldings
Chrome door handles
Chrome mirror caps
CornerStep rear bumper
Deep-tinted glass
Front license plate bracket
GMC MultiPro Tailgate
IntelliBeam
LED fog lamps
Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass
Power sunroof
Power-retractable assist steps with LED perimeter lighting
Rainsense automatic wipers
Rear wheelhouse liners
Side Bed Step
Smoked Amber LED roof marker lamps
Spare tire carrier lock
Spray-on bedliner
Tailgate and bed rail protection caps
Tailgate with EZ Lift assist, power lock & release
Winter Grille Cover
12.3" diagonal color Driver Information Center
120-volt box-mounted power outlet
120-volt power outlet
16-way power driver seat with power lumbar and massage
16-way power passenger seat with power lumbar and massage
Adaptive Cruise Control
Assist handles
Carpeted floor covering
Compass
Driver memory
Dual-zone automatic climate control
Front bucket seats
Front center console
Head-Up Display
Heated driver and front outboard passenger seats
Heated rear outboard seats
Heated steering wheel
Keyless Open and Start
Leather-wrapped steering wheel
Manual tilt and telescoping steering column
Outside temperature display
Power door locks
Power sliding rear window with rear defogger
Power windows with driver and front passenger express-up/down
Power windows with driver express-up/down
Power windows with rear express-down
Premium front floor liners with removable carpet insert
Premium rear floor liners with removable carpet insert
Rear Camera Mirror
Rear Seat Reminder
Rear air vents
Rear window defogger
Remote Start
Steering-wheel mounted controls
Theft-deterrent unauthorized entry system
USB ports
Universal Home Remote
Up-level rear seat with storage package
Ventilated driver and front passenger seats
Wireless Charging
10-speed automatic transmission
11,350 lbs. GVWR
220-amp alternator
3.42 rear axle ratio
4-wheel antilock disc brakes
6.6L Duramax Turbo-Diesel V8 engine
Air filtration monitoring
Automatic locking rear differential
Autotrac 2-speed transfer case with push button controls
Brake pad wear indicator
Capped fuel fill
Chrome vertical recovery hooks
Diesel exhaust brake
Digital Variable Steering Assist
Engine block heater
External auxiliary transmission oil cooler
External engine oil cooler
Fully boxed frame
Gooseneck / 5th Wheel Prep Package
Heavy-Duty Air Filter
Heavy-duty dual batteries with 1460 cold-cranking amps
Hill Descent Control
In-Vehicle Trailering App
Integrated trailer brake controller
Off-Road suspension
Push Button Start
Skid plates
3 Years OnStar One
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
6 airbags
Bed View Camera
Buckle to Drive
Following Distance Indicator
Forward Collision Alert
Front and Rear Park Assist
HD Surround Vision
Hitch Guidance
Hitch View
Lane Departure Warning
OnStar Basics
OnStar services capable
Rear Cross Traffic Alert
Rear Seat Belt Indicator
Safety Alert Seat
Seat Belt Adjustable Guide Loops
Teen Driver
Tire Pressure Monitoring System with Tire Fill Alert
Trailer Side Blind Zone Alert
Trailer Tire Pressure and Temperature Sensors
Trailering Information Label
Trailering camera provisions
Automatic Emergency Braking
Front Pedestrian Braking
StabiliTrak, electronic stability control system with traction control
Snow Plow Prep / Camper Package:
Power feed to accommodate a backup and roof emergency light
A single 220-amp alternator
Heavy-duty front springs
May require additional optional equipment
Snow Plow Prep / Camper Package

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 250 miles of Plattsburgh, New York

Asking price$90,990Dealer asking price · 1 mi

Market value$94,023Market value · based on 56 comparable cars

vs. market Fair price-3.2%Fair price · based on 56 comparable cars

Where this price sits

Among the lowest-priced · 89% of 56 similar listings ask more than this car.

Market value $94,023

This car$90,990

$88,640lowest$102,115highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Fair price$3,033 below the market value of $94,023

Price range

$88,640$102,115

7th lowest price of 57 similar listings within 250 milesTick marks the market value · range of 56 similar listings

AutosXchange Insights

Compared with 56 new 2026 GMC Sierra 2500 Denali Ultimate listings within 250 mi.
Priced $3,033 below the market value of 56 comparable cars.
7th lowest price of 57 similar listings within 250 miles.
About 1 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 260210 — 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 9, 2026. No price change at this dealership since Nov 9 ($90,990).

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

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 Denali Ultimate · new · within 250 miles of Plattsburgh, New York. Showing the 12 nearest of 56 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD Denali Ultimate for sale at Brennan Buick GMC in Plattsburgh, NY

Fair price

51 photos