2021 GMC Sierra 2500HD Denali
Specifications, live market data, colors, and factory features.
206 for sale right now
$30,898 – $74,490
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
- 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)20
- Onyx Black(black)16
- Summit White(white)16
- Quicksilver Metallic(silver)9
- White Frost Tricoat(white)9
- White8
- Black8
- Pacific Blue Metallic(blue)6
- Hunter Metallic(gray)6
- White Frost Tri-Coat(white)6
Interior
- Jet Black(black)68
- Dark Walnut/Dark Ash Grey(gray)20
- Black10
- Walnut(brown)6
- Dark Walnut(brown)3
- Dark Walnut/Dark Ash Grey Hvh(brown)1
- White1
- JET BLACK, FORGE PERFORATED LEATHER SEAT TRIM(brown)1
- Dark Walnut/Dark Ash Grey, Forge Perforated Leather Seat Trim(gray)1
Live Market Data
Computed from active 2021 GMC Sierra 2500HD Denali listings nationwide, updated continuously.
For sale now206
Median price$55,263
Average price$55,000
Price range$30,898 – $74,490
Median vs. MSRP−$9,837
Avg. days on market47
Avg. mileage79,976 mi
New / Used0 / 206
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
90,899 mi
Used 2021 GMC Sierra 2500HD
Denali
$39,099
Est. $571/mo*
1 day on market
SilverBlack
Jeff's Northshore Auto
Menasha, WI
View Used 2021 GMC Sierra 2500HD listing
79,389 mi
Used 2021 GMC Sierra 2500HD
Denali
$54,900
Est. $796/mo*
1 day on market
WhiteBlack
Morelia Auto Sales
Maywood, IL
View Used 2021 GMC Sierra 2500HD listing
39,193 mi
Used 2021 GMC Sierra 2500HD
Denali
$64,495
Est. $932/mo*
1 day on market
BlackBlack
Frontline Motors
Clayton, NC
View Used 2021 GMC Sierra 2500HD listing
88,340 mi
Used 2021 GMC Sierra 2500HD
Denali
$53,965
Est. $782/mo*
1 day on market
SilverBlack
Woody Folsom Ford
Baxley, GA
View Used 2021 GMC Sierra 2500HD listing
135,104 mi
Used 2021 GMC Sierra 2500HD
Denali
$44,819
Est. $652/mo*
1 day on market
BlackBlack
Sam Leman Chevrolet Champaign
Champaign, IL
View Used 2021 GMC Sierra 2500HD listing
85,785 mi
Used 2021 GMC Sierra 2500HD
Denali
$56,118
Est. $813/mo*
1 day on market
WhiteBlack
Go Green Auto LLC
Merced, CA
View Used 2021 GMC Sierra 2500HD listing
58,894 mi
Used 2021 GMC Sierra 2500HD
Denali
$58,114
Est. $842/mo*
1 day on market
BlackBlack
Parks Buick GMC Greenville
Greenville, SC
View Used 2021 GMC Sierra 2500HD listing
46,478 mi
Used 2021 GMC Sierra 2500HD
Denali
$59,720
Est. $864/mo*
1 day on market
WhiteGray
Big Star Buick GMC Baytown
Baytown, TX
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The median 2021 GMC Sierra 2500HD Denali lists for $55,263 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