2025 GMC Sierra 2500 Denali

Specifications, live market data, colors, and factory features.

300 for sale right now

$55,266 – $99,793

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Specifications

Performance

Engine: 6.6L V8 L5P
Transmission: Automatic
Drivetrain: 4WD

Fuel & Efficiency

Fuel: Diesel
MPG City: 0 mpg
MPG Highway: 0 mpg

Body & Practicality

Body Style: Truck
Doors: 4

Colors

Factory colors on 2025 GMC Sierra 2500 Denalis for sale now.

Exterior

Onyx Black(black)58
Summit White(white)23
Sterling Metallic(silver)17
White Frost Tricoat(white)11
Downpour Metallic9
White Frost Tri-Coat(white)9
Titanium Rush Metallic(silver)7
Metallic6
White Frost(white)4
White4

Interior

Jet Black(black)93
Black29
Atmosphere/Brownstone(brown)14
Atmosphere(brown)11
Jet Black, Forge Perforated Leather Seat Trim(blue)5
Atmosphere/Brownstone, Forge Perforated Leather Se(brown)1
Black Leather(black)1
Jet Black, Forge Perforated Leather seat trim(blue)1
ATMOSPHERE/BROWNSTONE(brown)1
Jet Black Forge Perforated Leather Seat Trim(brown)1

Live Market Data

Computed from active 2025 GMC Sierra 2500 Denali listings nationwide, updated continuously.

For sale now300

Median price$72,230

Average price$72,567

Price range$55,266 – $99,793

Avg. days on market55

Avg. mileage21,672 mi

New / Used26 / 274

Price Distribution

Price vs. Mileage

Latest Denali Listings

The newest 2025 GMC Sierra 2500 Denalis on the market.

View all 300 →

Used 2025 GMC Sierra 2500

Denali

$75,223

14,912 mi

Est. $1,085/mo*

2 days at this dealer

White FrostAtmosphere

Covert Buick GMC Austin

Austin, TX

Used 2025 GMC Sierra 2500

Denali

$73,343

28,663 mi

Est. $1,059/mo*

3 days at this dealer

WhiteBrown

Orr GMC

Longview, TX

Used 2025 GMC Sierra 2500

Denali

$73,044

43,963 mi

Est. $1,054/mo*

3 days at this dealer

SilverBrown

EAG Ford Navasota

Navasota, TX

Used 2025 GMC Sierra 2500

Denali

$67,390

19,290 mi

Est. $974/mo*

3 days at this dealer

WhiteBlack

Jim Schmidt Chevrolet

Hicksville, OH

Used 2025 GMC Sierra 2500

Denali

$68,900

43,070 mi

Est. $995/mo*

3 days at this dealer

SilverBrown

Mullinax Buick GMC

Montgomery, AL

Used 2025 GMC Sierra 2500

Denali

$74,061

15,588 mi

Est. $1,069/mo*

3 days at this dealer

WhiteBlack

Warsaw Buick GMC Chrysler Dodge Jeep RAM

Warsaw, IN

Used 2025 GMC Sierra 2500

Denali

$73,895

36,985 mi

Est. $1,066/mo*

3 days at this dealer

WhiteBlack

Ralph Sellers Chrysler Dodge Jeep Hyundai

Gonzales, LA

Used 2025 GMC Sierra 2500

Denali

$76,003

9,275 mi

Est. $1,096/mo*

3 days at this dealer

SilverBlack

Parks Chevrolet Huntersville

Huntersville, NC

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The median 2025 GMC Sierra 2500 Denali lists for $72,230 today.

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Factory Features

Standard equipment from the window sticker, reviewed for accuracy.

Comfort & Convenience

Remote start
Wireless phone charging
Heated steering wheel
Heated front and rear outboard seats
Ventilated front seats
Driver seat and mirror memory
Power-folding/extending heated trailering mirrors

Driver Assistance

Adaptive Cruise Control with trailering (standard on 2025 Denali)
HD Surround Vision multi-camera system
Bed View Camera
Front and Rear Park Assist
Trailer Side Blind Zone Alert
Rear Cross Traffic Alert

Entertainment

13.4-inch diagonal Premium GMC Infotainment System with Google built-in compatibility, including navigation capability and Bluetooth
Wireless Apple CarPlay and wireless Android Auto for compatible phones
Bose premium sound system
SiriusXM with trial subscription
8 years of OnStar Basics (see OnStar terms)

Exterior

20-inch Ultra-Bright machined aluminum wheels with bright chrome inserts
Signature Denali chrome grille and chrome exterior accents
Animated LED projector headlamps
LED fog lamps
Power-folding/power-extending heated trailering mirrors with auto-dimming
Chrome front recovery hooks
Spray-on bedliner
LED cargo area lighting
Power rear sliding window
GMC MultiPro six-function tailgate
Roof marker lamps
Bed View Camera

Interior

Forge perforated leather seating surfaces
Denali-exclusive authentic open-pore wood and patterned aluminum trim
12-way power front bucket seats
Heated and ventilated front seats
Heated rear outboard seats
60/40 rear folding bench seat with storage package
Driver seat and exterior mirror memory
Leather-wrapped heated steering wheel
12.3-inch diagonal color Driver Information Center

Mechanical & Performance

6.6L V8 gasoline engine (401 hp / 464 lb-ft) — standard; Duramax 6.6L turbo-diesel is optional
Allison 10-speed automatic transmission
4WD with 2-speed Autotrac transfer case (Denali configuration)
Auto-locking rear differential
StabiliTrak with Trailer Sway Control and Hill Start Assist
Digital variable steering assist
All-terrain tires
Trailering Package
Integrated trailer brake controller
In-vehicle trailering app / Vehicle Trailering App (ProGrade Trailering System)

Safety & Security

Sierra HD Pro Safety suite
Forward Collision Alert
Following Distance Indicator
Front Pedestrian Braking
Automatic Emergency Braking
IntelliBeam auto high beams
Lane Departure Warning
Buckle to Drive
Safety Alert Seat
Rear Cross Traffic Alert
Trailer Side Blind Zone Alert
HD Surround Vision
Front and Rear Park Assist
Remote keyless open and start

Warranty

3-year/36,000-mile bumper-to-bumper limited warranty (whichever comes first)
5-year/60,000-mile powertrain limited warranty for standard gas engine (whichever comes first); Duramax diesel powertrain coverage is 5-year/100,000-mile when optionally equipped
5-year/60,000-mile Roadside Assistance and Courtesy Transportation (gas engine; diesel extends to 5-year/100,000-mile when optionally equipped)
First maintenance visit included