O'Meara GMC · Thornton, CO

2026 GMC Sierra 3500 HD Denali

11 miles · truck · Price dropped $2,500

1 / 6 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 3500 HD

TrimDenali

VIN1GT4UWEY8TF303665

Stock numberTF303665

Mileage11 miles

BodyPickup

Engine6.6L V8 turbo

Cylinders8

Displacement6.6L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

ExteriorDownpour Metallic

InteriorAtmosphere/Brownstone, Forge Perforated Leather se

Doors4

Vehicle description

Navigation, Heated/Cooled Leather Seats, LPO, ALL-WEATHER FLOOR LINER, 1ST AND... ASSIST STEPS, POWER-RETRACTABLE, TECHNOLOGY PACKAGE, Premium Sound System. Downpour Metallic exterior and Atmosphere/Brownstone interior, Denali trim. KEY FEATURES INCLUDE Leather Seats, 4x4, Heated Driver Seat, Heated Rear Seat, Cooled Driver Seat, Premium Sound System, Satellite Radio, Onboard Communications System, Trailer Hitch, Remote Engine Start Keyless Entry, Privacy Glass, Steering Wheel Controls, Alarm. GMC Denali with Downpour Metallic exterior and Atmosphere/Brownstone interior features a 8 Cylinder Engine with 470 HP at 2800 RPM*. OPTION PACKAGES ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), LPO, 20" (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS WITH MACHINED ACCENTS LPO wheels will come with 4 aluminum 20" Transit Wheels from the factory with alignment specs set to 20" LPO wheel selected (dealer-installed), ASSIST STEPS, POWER-RETRACTABLE with LED perimeter lighting and bright accent, TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15" Diagonal Head-Up Display, LPO, ALL-WEATHER FLOOR LINER, 1ST AND 2ND ROWS (dealer-installed), AUDIO SYSTEM, 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM with Google built in apps such as navigation and voice assistance, includes color touch-screen, multi-touch display, AM/FM stereo, BluetoothÂ® streaming audio for music and most phones; featuring wireless Android AutoÂ® and Apple CarPlayÂ® capability for compatible phones. (STD), TRANSMISSION, 10-SPEED AUTOMATIC.

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 Sound System
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" high gloss Black aluminum wheels with machined accents
Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
Black Badging Package
Black nameplates
Body-color front bumper
Body-color rear bumper
Cargo bed LED lighting
Cargo tie-downs
Chrome door handles
Chrome mirror caps
CornerStep rear bumper
Deep-tinted glass
Front and rear Black GMC emblems
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
Polished exhaust tip
Power sliding rear window with rear defogger
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
Stainless-steel beltline moldings
Tailgate and bed rail protection caps
Tailgate with EZ Lift assist, power lock & release
Winter Grille Cover
12-way power driver seat
12-way power front passenger seat
12.3" diagonal color Driver Information Center
120-volt box-mounted power outlet
120-volt power outlet
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
In-Vehicle Trailering App
Keyless Open and Start
Manual tilt and telescoping steering column
Outside temperature display
Power door locks
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 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
Wrapped steering wheel
10-speed automatic transmission
12,100 lbs. GVWR
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
Dual, 220 amp primary and 170 auxiliary amp alternators
Engine block heater
External auxiliary transmission oil cooler
External engine oil cooler
Fully boxed frame
Heavy Duty Front Spring / Camper Package
Heavy-Duty Air Filter
Heavy-duty 730 cold-cranking amps battery
Integrated trailer brake controller
Off-Road suspension
Pickup bed
Push Button Start
Skid plates
Trailering wiring provisions for camper, 5th wheel and gooseneck trailer
3 Years OnStar One
Trailering Information Label
LED Daytime Running Lamps
Signature LED Daytime Running Lamps
6 airbags
Auxiliary Trailer Camera
Bed View Camera
Buckle to Drive
Following Distance Indicator
Forward Collision Alert
Front Pedestrian Braking
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
Rear Seat Reminder
Safety Alert Seat
Seat Belt Adjustable Guide Loops
Teen Driver
Tire Pressure Monitoring System with Tire Fill Alert
Trailer Side Blind Zone Alert
Trailering camera provisions
Automatic Emergency Braking
Hill Descent Control
StabiliTrak, electronic stability control system with traction control
Denali Reserve Package
ProGrade Trailering System
Sierra HD Pro Safety
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 Thornton, Colorado

Asking price$91,682Dealer asking price · 11 mi

Market value$100,259Market value · based on 9 comparable cars

vs. market Good deal-8.6%Good deal · based on 9 comparable cars

Where this price sits

In the typical middle range · 67% of 9 similar listings ask more than this car.

Market value $100,259

This car$91,682

$81,749lowest$100,859highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Good deal$8,577 below the market value of $100,259

Price range

$81,749$100,859

4th lowest price of 10 similar listings within 50 milesTick marks the market value · range of 9 similar listings

AutosXchange Insights

Compared with 9 new 2026 GMC Sierra 3500 Denali listings within 50 mi.
Priced $8,577 below the market value of 9 comparable cars.
4th lowest price of 10 similar listings within 50 miles.
About 11 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # TF303665 — 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. 1 price change at this dealership: $94,182 → $91,682 (−$2,500).

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 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 3500 Denali · new · within 50 miles of Thornton, Colorado. All 9 comparable cars for sale, nearest first.

2026 GMC Sierra 3500 HD Denali for sale at Shortline Buick GMC in Aurora, CO

Great deal

71 photos