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  • 2020 GMC Sierra 2500 Denali

    $49,995

    140,395 mi.
    Est. $888/mo

    Boyko Motors

    3.3
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    Tacoma, WA (1,733 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. $984/mo

    Kelley Buick GMC of Bartow

    4.1
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    Bartow, FL (1,020 mi)

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  • Black 2020 GMC Sierra 2500 DenaliBlack 2020 GMC Sierra 2500 DenaliBlack 2020 GMC Sierra 2500 DenaliBlack 2020 GMC Sierra 2500 DenaliBlack 2020 GMC Sierra 2500 DenaliBlack 2020 GMC Sierra 2500 Denali

    $59,500

    77,703 mi.
    Est. $1,056/mo

    CRM Motors Pelham

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    Pelham, AL (594 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
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    Tucson, AZ (1,439 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

    $61,376

    23,967 mi.
    Est. $1,090/mo

    DeHaven Chevrolet

    4.6
    Check Availability
    Fort Wayne, IN (138 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. $980/mo

    Emmons Autoplex

    4.5
    Check Availability
    Webster, TX (951 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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  • 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. $892/mo

    Phillip Hawkins Motor Company

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    Graniteville, SC (657 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

    $51,912

    84,032 mi.
    Est. $922/mo

    Woody Buick GMC of Gurnee

    5.0
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    Gurnee, IL (38 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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  • 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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  • 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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  • 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. $1,012/mo

    Liberty GMC

    4.5
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    Peoria, AZ (1,454 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. $834/mo

    Discovery Auto Group

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    Grand Junction, CO (1,116 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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  • 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

    $3.3K
    66,876 mi.
    Est. $997/mo

    Heritage Buick GMC

    4.6
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    Rockwall, TX (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

    $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 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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  • 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
    Check Availability
    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

    $42,972

    161,949 mi.
    Est. $763/mo

    Vann York Chevrolet Buick GMC

    3.9
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    High Point, NC (578 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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  • 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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  • 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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  • 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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  • 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

    $58,000

    $900
    46,287 mi.
    Est. $1,030/mo

    Key Acura of Gainesville

    4.9
    Check Availability
    Gainesville, FL (894 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

    $58,347

    52,984 mi.
    Est. $1,036/mo

    Walser Buick GMC Bloomington

    4.2
    Check Availability
    Bloomington, MN (353 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. $852/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

    $46,499

    $791
    69,435 mi.
    Est. $826/mo

    Volkswagen of Streetsboro

    4.6
    Check Availability
    Streetsboro, OH (328 mi)
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  • Onyx Black 2020 GMC Sierra 2500 4WD Crew Cab 159" DenaliOnyx Black 2020 GMC Sierra 2500 4WD Crew Cab 159" DenaliOnyx Black 2020 GMC Sierra 2500 4WD Crew Cab 159" DenaliOnyx Black 2020 GMC Sierra 2500 4WD Crew Cab 159" DenaliOnyx Black 2020 GMC Sierra 2500 4WD Crew Cab 159" DenaliOnyx Black 2020 GMC Sierra 2500 4WD Crew Cab 159" Denali

    $41,990

    $1K
    84,212 mi.
    Est. $746/mo

    Auto Trademark

    4.7
    Check Availability
    Manassas, VA (578 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

    $54,137

    $639
    62,726 mi.
    Est. $961/mo

    Blasius South

    4.2
    Check Availability
    Stratford, CT (752 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 7 Great deals
2025 GMC Sierra 2500 Denali $75,447 32 Great deals
2024 GMC Sierra 2500 Denali $70,021 68 Great deals
2023 GMC Sierra 2500 Denali $60,006 39 Great deals
2022 GMC Sierra 2500 Denali $57,514 53 Great deals
2021 GMC Sierra 2500 Denali $57,337 35 Great deals
2019 GMC Sierra 2500 Denali $44,724 25 Great deals
2018 GMC Sierra 2500 Denali $45,054 31 Great deals
2017 GMC Sierra 2500 Denali $44,260 13 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 $53,622, 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