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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. $994/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

    $56,579

    $2K
    63,678 mi.
    Est. $1,005/mo

    Ferguson Superstore

    4.9
    Check Availability
    Broken Arrow, OK (594 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

    79,859 mi.
    Est. $842/mo

    Woody Buick GMC of Gurnee

    5.0
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    Gurnee, IL (38 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

    78,326 mi.
    Est. $980/mo

    Emmons Autoplex

    4.5
    Check Availability
    Webster, TX (951 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

    $48,727

    $500
    96,920 mi.
    Est. $865/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

    $61,715

    $1.9K
    37,387 mi.
    Est. $1,096/mo

    Liberty GMC

    4.5
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    Peoria, AZ (1,454 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. $944/mo

    HGreg.com Orlando

    4.5
    Check Availability
    Orlando, FL (994 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

    97,217 mi.
    Est. $977/mo

    Beaver Toyota Cumming

    4.7
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    Cumming, GA (567 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 Denali

    $57,757

    84,515 mi.
    Est. $1,026/mo

    Platinum Chevrolet

    4.5
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    Santa Rosa, CA (1,856 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

    $56,178

    66,876 mi.
    Est. $997/mo

    Heritage Buick GMC

    4.6
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    Rockwall, TX (786 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

    $62,004

    37,081 mi.
    Est. $1,101/mo

    Shottenkirk Chrysler Dodge Jeep RAM

    4.8
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    Canton, GA (555 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

    $58,993

    $1K
    46,577 mi.
    Est. $1,047/mo

    Gresham Chrysler Dodge Jeep Ram

    4.6
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    Gresham, OR (1,742 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

    $50,793

    82,480 mi.
    Est. $902/mo

    J & M Automotive

    4.9
    Check Availability
    Naugatuck, 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

    $52,477

    $200
    61,706 mi.
    Est. $932/mo

    McKinney Buick GMC

    4.1
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    McKinney, TX (779 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

    $59,218

    $1.2K
    55,558 mi.
    Est. $1,051/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 Denali

    $51,995

    92,943 mi.
    Est. $923/mo

    St. Charles Nissan

    4.9
    Check Availability
    St Peters, MO (265 mi)
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  • Quicksilver 2020 GMC Sierra 2500 DenaliQuicksilver 2020 GMC Sierra 2500 DenaliQuicksilver 2020 GMC Sierra 2500 DenaliQuicksilver 2020 GMC Sierra 2500 DenaliQuicksilver 2020 GMC Sierra 2500 DenaliQuicksilver 2020 GMC Sierra 2500 Denali

    $47,542

    $400
    150,592 mi.
    Est. $844/mo

    Jaguar Land Rover St. Petersburg

    5.0
    Check Availability
    St. Petersburg, FL (1,011 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

    $59,579

    64,667 mi.
    Est. $1,058/mo

    Royal Kia Tucson

    4.9
    Check Availability
    Tucson, AZ (1,439 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. $657/mo

    Hank Graff Chevrolet

    4.7
    Check Availability
    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

    $63,598

    55,237 mi.
    Est. $1,129/mo

    Terryville Chevrolet

    4.4
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    Terryville, CT (753 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

    $58,995

    62,653 mi.
    Est. $1,047/mo

    Carville's Auto Mart

    4.7
    Check Availability
    Grand Junction, CO (1,116 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. $741/mo

    Evans Chevrolet GMC

    4.7
    Check Availability
    Wapakoneta, OH (202 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

    $58,010

    $200
    44,331 mi.
    Est. $1,030/mo

    Rosen Ford Belleville

    4.3
    Check Availability
    Belleville, WI (120 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

    $53,999

    43,002 mi.
    Est. $959/mo

    AutoNation CDJR Canon City

    4.2
    Check Availability
    Canon City, CO (955 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 2500 Denali

    $58,999

    46,287 mi.
    Est. $1,048/mo

    Key Acura of Gainesville

    4.9
    Check Availability
    Gainesville, FL (894 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 6 Great deals
2025 GMC Sierra 2500 Denali $75,401 33 Great deals
2024 GMC Sierra 2500 Denali $69,940 64 Great deals
2023 GMC Sierra 2500 Denali $59,983 37 Great deals
2022 GMC Sierra 2500 Denali $57,620 48 Great deals
2021 GMC Sierra 2500 Denali $57,185 50 Great deals
2019 GMC Sierra 2500 Denali $44,552 25 Great deals
2018 GMC Sierra 2500 Denali $45,277 19 Great deals
2017 GMC Sierra 2500 Denali $44,768 15 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 $53,706, with pricing starting at $36,995.

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