Swanson GMC · Acton, MA

2026 GMC Sierra 2500 HD Denali Ultimate

7 miles · truck

1 / 55 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 2500 HD

TrimDenali Ultimate

VIN1GT4UXEY2TF172030

Stock numberP8115

Mileage7 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorGlacier White Tricoat

InteriorAlpine Umber, Full Grain Leather seat trim

Doors4

Vehicle description

Meet the 2026 GMC Sierra 2500HD Denali Ultimate a truck engineered for those who demand capability without compromise, offering the refinement and power needed for serious work and genuine comfort on every mile. This Sierra 2500HD comes equipped with premium features designed to enhance your driving experience: - Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission and 4WD - MAX TRAILERING PACKAGE with 3500 HD frame, heavy-duty leaf springs, 12 rear axle, and gooseneck/5th wheel prep - Technology Package and X31 Off-Road Package - Bose Premium Series 12-speaker audio system with SiriusXM and wireless phone projection - Multicolor 15 head-up display - HD Surround Vision with bed view camera and trailer camera provisions - Advanced safety features including lane departure warning, forward collision alert, and automatic emergency braking - Heated and ventilated leather seating with 16-way power adjusters - Power moonroof and automatic high-beam headlights - Hitch guidance with hitch view and in-vehicle trailering system app - 20 ultra-bright machined aluminum wheels - Spray-on pickup bedliner with signature Denali Ultimate Vadar Chrome grille The truck's foundation speaks volumes about its engineering. The MAX TRAILERING PACKAGE transforms this Sierra into a serious hauling machine with reinforced frame architecture, upgraded suspension geometry, and purposeful bed preparation. Whether you're managing a job site, towing a significant load, or navigating challenging terrain, the truck's infrastructure is built to handle real-world demands without hesitation. Inside, the Denali Ultimate trim reflects genuine craftsmanship. Full grain leather wraps the seats, which feature heating and ventilation technology to maintain comfort across seasons. The 16-way power adjustable seating with lumbar support means you'll arrive refreshed after long days behind the wheel. Genuine wood accents on the dashboard and door panels add sophistication, while the automatic temperature control and dual-zone air conditioning keep the cabin precisely as you prefer it. Technology integration is seamless and purposeful. The Premium GMC Infotainment System pairs with Apple CarPlay and Android Auto, while wireless charging keeps your devices powered. The in-vehicle trailering system app puts trailer management at your fingertips, and the hitch guidance system removes guesswork from trailer backing. The 15 head-up display keeps essential information in your line of sight without distraction. Safety systems work unobtrusively to help protect you and your investment. Forward collision alert, lane departure warning, and automatic emergency braking provide active protection, while the HD surround vision gives you comprehensive awareness around the truck. Ultrasonic front and rear park assist and trailer side blind zone alert integrate intelligence into everyday driving. This 2026 Sierra 2500HD Denali Ultimate in Glacier White Tricoat comes with a $5,000 dealer discount and flexible financing at 4.9-5.9-6.9% for 36-84 months, making premium capability more accessible. We invite you to experience the truck's command and composure in person, then take it to where it belongs working hard for you. Price includes: $2000 - Bonus Cash. Exp. 11/30/2026

Features & options (153)

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
All-weather floor liners
Assist handles
Carpeted floor covering
Compass
Driver memory
Dual-zone automatic climate control
Front bucket seats
Front carpeted floor mats
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
Rear Camera Mirror
Rear Seat Reminder
Rear air vents
Rear carpeted floor mats
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
11,750 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
Pickup bed
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
Gooseneck Hitch Package
Max Trailering Package
ProGrade Trailering System
Sierra HD Pro Safety
Snow Plow Prep / Camper Package
Technology Package
Trailering Package
X31 Off-Road 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 50 miles of Acton, Massachusetts

Asking price$99,310Dealer asking price · 7 mi

Market value$93,905Market value · based on 28 comparable cars

vs. market High price+5.8%High price · based on 28 comparable cars

Where this price sits

Among the highest-priced · 11% of 28 similar listings ask more than this car.

Market value $93,905

This car$99,310

$88,640lowest$102,115highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

High price$5,405 above the market value of $93,905

Price range

$88,640$102,115

26th lowest price of 29 similar listings within 50 milesTick marks the market value · range of 28 similar listings

AutosXchange Insights

Compared with 28 new 2026 GMC Sierra 2500 Denali Ultimate listings within 50 mi.
Priced $5,405 above the market value of 28 comparable cars — compare options, condition and history.
26th lowest price of 29 similar listings within 50 miles.
About 7 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # P8115 — 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 7, 2026. No price change at this dealership since Nov 7 ($99,310).0 price changes at this dealership: $99,310 → $99,310.

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); 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 50 miles of Acton, Massachusetts. Showing the 12 nearest of 28 comparable cars for sale, nearest first.

2026 GMC Sierra 2500 HD Denali Ultimate for sale at Swanson GMC in Acton, MA

Good deal

44 photos