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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $55,977

    63,064 mi.
    Est. $1,052/mo

    Steve Link Ford-Lincoln Inc.

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    Grinnell, IA (263 mi)

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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $55,397

    77,817 mi.
    Est. $1,041/mo

    Kelley Buick GMC of Bartow

    4.1
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    Bartow, FL (1,020 mi)

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  • Quicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 Denali

    $36,999

    186,445 mi.
    Est. $695/mo

    Hank Graff Chevrolet

    4.7
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    Davison, MI (225 mi)
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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $47,412

    $4.5K
    79,859 mi.
    Est. $891/mo

    Woody Buick GMC of Gurnee

    5.0
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    Gurnee, IL (38 mi)
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  • White Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali Ultimate

    $55,498

    52,090 mi.
    Est. $1,043/mo

    Toyota of Richardson

    4.7
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    Richardson, TX (792 mi)
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  • Summit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 Denali

    $55,217

    $1K
    78,326 mi.
    Est. $1,038/mo

    Emmons Autoplex

    4.5
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    Webster, TX (951 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 Denali

    $54,890

    $1.8K
    43,002 mi.
    Est. $1,032/mo

    AutoNation Chrysler Jeep West

    4.6
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    Golden, CO (928 mi)
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  • Gray 2020 GMC Sierra 2500 DenaliGray 2020 GMC Sierra 2500 DenaliGray 2020 GMC Sierra 2500 DenaliGray 2020 GMC Sierra 2500 DenaliGray 2020 GMC Sierra 2500 DenaliGray 2020 GMC Sierra 2500 Denali

    $52,047

    84,961 mi.
    Est. $978/mo

    Champion Chevrolet GMC

    4.6
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    La Grange, KY (269 mi)

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  • Dark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 Denali

    $53,191

    84,150 mi.
    Est. $1,000/mo

    HGreg.com Orlando

    4.5
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    Orlando, FL (994 mi)
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  • White 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 Denali

    $43,750

    140,773 mi.
    Est. $822/mo

    Show Me Auto Mall

    4.8
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    Harrisonville, MO (419 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 Denali

    $56,993

    59,284 mi.
    Est. $1,071/mo

    Liberty GMC

    4.5
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    Peoria, AZ (1,454 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 Denali

    $49,227

    $800
    96,920 mi.
    Est. $925/mo

    Volkswagen of Salem

    4.2
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    Salem, OR (1,774 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 Denali

    $55,000

    $500
    97,217 mi.
    Est. $1,034/mo

    Beaver Toyota Cumming

    4.7
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    Cumming, GA (567 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 2500 DenaliPacific Blue Metallic 2020 GMC Sierra 2500 DenaliPacific Blue Metallic 2020 GMC Sierra 2500 DenaliPacific Blue Metallic 2020 GMC Sierra 2500 DenaliPacific Blue Metallic 2020 GMC Sierra 2500 DenaliPacific Blue Metallic 2020 GMC Sierra 2500 Denali

    $50,211

    104,746 mi.
    Est. $944/mo

    Phillip Hawkins Motor Company

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    Graniteville, SC (657 mi)

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  • Summit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 Denali

    $59,993

    46,577 mi.
    Est. $1,128/mo

    Gresham Chrysler Dodge Jeep Ram

    4.6
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    Gresham, OR (1,742 mi)
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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $57,158

    $1.5K
    63,678 mi.
    Est. $1,074/mo

    Ferguson Superstore

    4.9
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    Broken Arrow, OK (594 mi)
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  • Summit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 Denali

    $59,613

    $816
    55,543 mi.
    Est. $1,121/mo

    Fowler Dodge Chrysler Jeep and RAM

    4.2
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    Oklahoma City, OK (696 mi)
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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $63,598

    55,237 mi.
    Est. $1,195/mo

    Terryville Chevrolet

    4.4
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    Terryville, CT (753 mi)
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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $54,880

    69,992 mi.
    Est. $1,032/mo

    Beaverton Nissan

    4.4
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    Beaverton, OR (1,761 mi)
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  • White 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 Denali

    $46,995

    108,000 mi.
    Est. $883/mo

    Discovery Auto Group

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    Grand Junction, CO (1,116 mi)

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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $43,999

    $1.2K
    155,879 mi.
    Est. $827/mo

    Burtness Chevrolet

    4.8
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    Orfordville, WI (99 mi)
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  • 2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali

    $41,723

    163,208 mi.
    Est. $784/mo

    Evans Chevrolet GMC

    4.7
    Check Availability
    Wapakoneta, OH (202 mi)
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  • Quartz 2020 GMC Sierra 2500 DenaliQuartz 2020 GMC Sierra 2500 DenaliQuartz 2020 GMC Sierra 2500 DenaliQuartz 2020 GMC Sierra 2500 DenaliQuartz 2020 GMC Sierra 2500 DenaliQuartz 2020 GMC Sierra 2500 Denali

    $63,882

    $2.1K
    36,297 mi.
    Est. $1,201/mo

    Kendall Chevrolet GMC of Eugene

    4.5
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    Eugene, OR (1,786 mi)
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  • White Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 Denali

    $51,645

    98,791 mi.
    Est. $971/mo

    Nelson Nissan

    4.2
    Check Availability
    Broken Arrow, OK (595 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 Denali

    $46,499

    $791
    69,435 mi.
    Est. $874/mo

    Volkswagen of Streetsboro

    4.6
    Check Availability
    Streetsboro, OH (328 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 DenaliQuicksilver Metallic 2020 GMC Sierra 2500 Denali

    $60,777

    41,570 mi.
    Est. $1,142/mo

    James Wood Motors, Inc

    4.8
    Check Availability
    Decatur, TX (809 mi)

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  • Red Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 Denali

    $47,995

    102,814 mi.
    Est. $902/mo

    Barlow Buick GMC

    4.8
    Check Availability
    Manahawkin, NJ (716 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 Denali

    $59,943

    49,159 mi.
    Est. $1,127/mo

    Front Royal Buick GMC

    4.4
    Check Availability
    Front Royal, VA (536 mi)
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  • White Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 DenaliWhite Frost Tricoat 2020 GMC Sierra 2500 Denali

    $49,999

    72,408 mi.
    Est. $940/mo

    GREENLINE MOTORS LLC

    4.1
    Check Availability
    Bellevue, NE (437 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 39 Good deals
2025 GMC Sierra 2500 Denali $75,632 35 Great deals
2024 GMC Sierra 2500 Denali $70,192 68 Great deals
2023 GMC Sierra 2500 Denali $59,992 40 Great deals
2022 GMC Sierra 2500 Denali $57,830 46 Great deals
2021 GMC Sierra 2500 Denali $57,065 36 Great deals
2019 GMC Sierra 2500 Denali $44,987 30 Great deals
2018 GMC Sierra 2500 Denali $45,382 28 Great deals
2017 GMC Sierra 2500 Denali $44,378 12 Great deals

About the 2020 GMC Sierra 2500 Denali

Basics

Denali shown.

Seating
5
Door count
4
Drivetrain
Four Wheel Drive
Combined MPG
0
Transmission
6-Speed A/T
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
Side view of the 2020 GMC Sierra 2500 Denali
FAQs

How much does the 2020 GMC Sierra 2500 Denali cost?

The 2020 GMC Sierra 2500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 2500 Denali is $53,870, with pricing starting at $31,993.

What are some similar vehicles and competitors of the 2020 GMC Sierra 2500 Denali?

The 2020 GMC Sierra 2500 Denali compares to and/or competes against the following vehicles:


Is the 2020 GMC Sierra 2500 Denali reliable?

The 2020 GMC Sierra 2500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 2500 owners.

Ratings (23 reviews)

91% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
4.8
Value
4.5
Exterior
4.9
Reliability
4.7
Trims

Denali (2 styles)

Style
4WD Crew Cab 159" Denali 4WD Crew Cab 172" Denali
Inventory price
Starting at $64,300 Starting at $64,500
Combined MPG
0 0
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
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GMC Sierra 2500 trims