2021 GMC Sierra 2500HD Denali
Specifications, live market data, colors, and factory features.
265 for sale right now
$29,999 – $70,698
Specifications
401
Horsepower
464
lb-ft Torque
5
Seats
$65k
Base MSRP
Performance
- Engine
- 6.6L V8 L5P - DI, DURAMAX, GEN 5 VAR. 1
- Horsepower
- 401 hp
- Torque
- 464 lb-ft
- Transmission
- 6-Speed Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Diesel
- MPG City
- 0 mpg
- MPG Highway
- 0 mpg
- Fuel Tank
- 36 gal
Dimensions
- Length
- 266.1″
- Width
- 81.9″
- Height
- 79.7″
- Wheelbase
- 172″
- Curb Weight
- 6,950 lbs
Body & Practicality
- Body Style
- Truck
- Doors
- 4
- Seating
- 5
- Base MSRP
- $65,100
Colors
Factory colors on 2021 GMC Sierra 2500HD Denalis for sale now.
Exterior
- Ebony Twilight Metallic(black)30
- Onyx Black(black)21
- Summit White(white)19
- White Frost Tricoat(white)18
- Black11
- Pacific Blue Metallic(blue)10
- Cayenne Red Tintcoat(red)7
- Hunter Metallic5
- Carbon Black Metallic(black)5
- Quicksilver Metallic(silver)5
Interior
- Jet Black(black)93
- Dark Walnut/Dark Ash Grey(gray)25
- Black8
- Walnut(brown)7
- Dark Walnut/Dark Ash Gray(gray)1
- Gray1
- Tan(brown)1
- Dark Walnut(gray)1
- White1
- JET BLACK, FORGE PERFORATED LEATHER SEAT TRIM(blue)1
Live Market Data
Computed from active 2021 GMC Sierra 2500HD Denali listings nationwide, updated continuously.
For sale now265
Median price$54,580
Average price$54,028
Price range$29,999 – $70,698
Median vs. MSRP−$10,520
Avg. days on market46
Avg. mileage81,001 mi
New / Used0 / 265
Price Distribution
Price vs. Mileage
Latest Denali Listings
The newest 2021 GMC Sierra 2500HD Denalis on the market.
View Used 2021 GMC Sierra 2500HD listing
98,833 mi
Used 2021 GMC Sierra 2500HD
Denali
$50,995
Est. $740/mo*
3 days at this dealer
WhiteBlack
McCloskey Motors
Colorado Springs, CO
View Used 2021 GMC Sierra 2500HD listing
44,506 mi
Used 2021 GMC Sierra 2500HD
Denali
$60,476
Est. $875/mo*
3 days at this dealer
Black
Pueblo Toyota
Pueblo, CO
View Used 2021 GMC Sierra 2500HD listing
119,650 mi
Used 2021 GMC Sierra 2500HD
Denali
$51,990
Est. $754/mo*
3 days at this dealer
BlackBlack
Lakeside Motors
Sachse, TX
View Used 2021 GMC Sierra 2500HD listing
88,926 mi
Used 2021 GMC Sierra 2500HD
Denali
$52,421
Est. $760/mo*
3 days at this dealer
BlackJet Black
Future Chevrolet of Sacramento
Sacramento, CA
View Used 2021 GMC Sierra 2500HD listing
68,900 mi
Used 2021 GMC Sierra 2500HD
Denali
$56,041
Est. $812/mo*
4 days at this dealer
BlackJet Black
Minnesota Truck Headquarters of Forest Lake
Forest Lake, MN
View Used 2021 GMC Sierra 2500HD listing
74,814 mi
Used 2021 GMC Sierra 2500HD
Denali
$54,579
Est. $791/mo*
4 days at this dealer
Hunter MetallicGray
Lithia Chrysler Jeep of Reno
Reno, NV
View Used 2021 GMC Sierra 2500HD listing
123,137 mi
Used 2021 GMC Sierra 2500HD
Denali
$46,872
Est. $681/mo*
4 days at this dealer
Onyx BlackJet Black
Laura Buick GMC
Collinsville, IL
View Used 2021 GMC Sierra 2500HD listing
48,453 mi
Used 2021 GMC Sierra 2500HD
Denali
$43,200
Est. $629/mo*
6 days at this dealer
BlackBlack
reCar
Benton, MO
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The median 2021 GMC Sierra 2500HD Denali lists for $54,580 today.
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Factory Features
Standard equipment from the window sticker, reviewed for accuracy.
Comfort & Convenience
- Keyless Open and Start
- Remote vehicle start
- Wireless device charging
- Power windows and locks (Crew Cab Denali)
- Rear-window defogger (as equipped on this trim level)
- Dual-zone automatic climate control (SLT-and-above Denali equipment content)
- Carpeted flooring with Denali interior appointments
Driver Assistance
- Driver Alert Package I content standard (front/rear park assist; blind-spot/lane-change alert; rear cross-traffic alert)
- Driver Alert Package II content standard (forward collision alert; automatic emergency braking; lane departure warning; following distance indicator; Safety Alert Seat; IntelliBeam)
- HD Surround Vision and bed-view/trailer-camera provisions standard on Denali for 2021
- ProGrade trailering camera and hitch-guidance features as equipped with standard camera suite
Entertainment
- GMC Premium Infotainment System with Navigation — 8" diagonal HD color touchscreen
- Voice recognition
- Bluetooth audio streaming
- Wireless Apple CarPlay capability
- Wireless Android Auto capability
- In-vehicle apps and personalization capability
- Bose premium sound system with Richbass woofer (7-speaker)
- SiriusXM capable with All Access trial (subscription sold separately)
- 4G LTE Wi-Fi hotspot capability (OnStar/AT&T plan required)
Exterior
- GMC MultiPro six-function tailgate
- Spray-on bedliner with GMC logo
- Chrome assist steps (cab-length)
- Power-folding/extending heated vertical trailering mirrors with auto-dimming
- LED reflector headlamps
- LED fog lamps
- LED taillamps and wheel-arch lamps
- LED cargo-area lighting
- Smoked amber LED roof marker lamps
- Power-sliding rear window
- CornerStep rear bumper and side bed steps
- Denali chrome grille/appearance with functional hood scoop
- Roll-formed high-strength steel pickup bed
Interior
- Perforated Forge leather seating surfaces
- Authentic open-pore wood, aluminum trim, and chrome accents
- 10-way power front bucket seats
- Ventilated front seats
- Heated front seats and heated rear outboard seats
- Driver seat and outside-mirror memory
- 60/40 split-folding rear bench seat with storage package
- Heated leather-wrapped steering wheel
- Crew Cab seating with spacious front/rear room (brochure: 43.0" front head room, 44.5" front leg room, 43.4" rear leg room)
Mechanical & Performance
- 6.6L V8 gasoline engine with direct injection (401 hp / 464 lb-ft) — standard powertrain; Duramax diesel is optional
- 6-speed heavy-duty automatic transmission (standard with gas engine)
- Four-wheel drive standard on Denali (Crew Cab only)
- 2-speed AutoTrac transfer case
- Auto-locking rear differential
- X31 off-road suspension with Rancho shocks and skid plates
- All-terrain tires
- 20-inch multidimensional polished aluminum wheels (SRW)
- StabiliTrak electronic stability control with Trailer Sway Control and Hill Start Assist
- Digital Variable Steering Assist
- Trailering Package
- Integrated trailer brake controller
- ProGrade Trailering System
- Independent short-/long-arm front suspension (Sierra HD architecture)
- Duralife brake rotors / four-wheel disc brakes
- Standard rear axle ratio 3.73 with gas engine (ratio varies with options)
Safety & Security
- HD Surround Vision with two trailer-camera provisions
- Bed View Camera
- Front and Rear Park Assist
- Lane Change Alert with Side Blind Zone Alert
- Rear Cross Traffic Alert
- Forward Collision Alert
- Lane Departure Warning
- Automatic Emergency Braking
- IntelliBeam auto high-beam headlamps
- Following Distance Indicator
- Safety Alert Seat
- OnStar safety and security services (subscription/terms apply)
Warranty
- 3 years / 36,000 miles bumper-to-bumper limited warranty (whichever comes first)
- 5 years / 60,000 miles powertrain limited warranty, roadside assistance, and courtesy transportation on standard gas models (whichever comes first; diesel-equipped vehicles show 5 years / 100,000 miles powertrain on factory labels)
- First maintenance visit included per factory owner-benefits listing
- See GMC.com or dealer for full terms, details, and limits