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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

    $51,590

    96,306 mi.
    Est. $916/mo

    Weld County Garage GMC Hummer

    4.5
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    Greeley, CO (896 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

    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

    $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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  • 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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  • 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

    $61,495

    $500
    15,583 mi.
    Est. $1,092/mo

    Koons Tysons Toyota

    4.7
    Check Availability
    Vienna, VA (584 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
    Check Availability
    Rockwall, TX (786 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

    $47,393

    $5.7K
    84,150 mi.
    Est. $841/mo

    HGreg.com Orlando

    4.5
    Check Availability
    Orlando, FL (994 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

    $60,699

    $300
    22,503 mi.
    Est. $1,078/mo

    Starling Buick GMC Stuart

    4.9
    Check Availability
    Stuart, FL (1,095 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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  • 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
    Check Availability
    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

    $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

    $62,004

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

    Shottenkirk Chrysler Dodge Jeep RAM

    4.8
    Check Availability
    Canton, GA (555 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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  • White Frost 2020 GMC Sierra 2500 DenaliWhite Frost 2020 GMC Sierra 2500 DenaliWhite Frost 2020 GMC Sierra 2500 DenaliWhite Frost 2020 GMC Sierra 2500 DenaliWhite Frost 2020 GMC Sierra 2500 DenaliWhite Frost 2020 GMC Sierra 2500 Denali

    $49,855

    $141
    139,920 mi.
    Est. $885/mo

    Covert Buick GMC Bee Cave

    4.6
    Check Availability
    Austin, TX (986 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

    $49,995

    $798
    82,480 mi.
    Est. $888/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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  • 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

    $48,199

    148,995 mi.
    Est. $856/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (813 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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  • 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

    4.5
    Check Availability
    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

    $54,897

    $500
    77,817 mi.
    Est. $975/mo

    Kelley Buick GMC of Bartow

    4.0
    Check Availability
    Bartow, FL (1,020 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

    $57,999

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

    Key Acura of Gainesville

    4.9
    Check Availability
    Gainesville, FL (894 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

    $53,650

    89,033 mi.
    Est. $953/mo

    Cable Dahmer of Topeka

    4.6
    Check Availability
    Topeka, KS (468 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

    $59,075

    $1.9K
    58,864 mi.
    Est. $1,049/mo

    Gilroy GMC

    4.7
    Check Availability
    Gilroy, CA (1,829 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. $888/mo

    GREENLINE MOTORS LLC

    4.1
    Check Availability
    Bellevue, NE (437 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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  • 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

    $43,199

    $800
    155,879 mi.
    Est. $767/mo

    Burtness Chevrolet

    4.8
    Check Availability
    Orfordville, WI (99 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

    62,726 mi.
    Est. $961/mo

    Blasius South

    4.2
    Check Availability
    Stratford, CT (752 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

    $57,077

    43,258 mi.
    Est. $1,013/mo

    Colandrea Buick GMC, Inc.

    4.7
    Check Availability
    Newburgh, NY (701 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

    $45,999

    $1.2K
    69,435 mi.
    Est. $817/mo

    Volkswagen of Streetsboro

    4.6
    Check Availability
    Streetsboro, OH (328 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 26 Good deals
2025 GMC Sierra 2500 Denali $75,231 20 Great deals
2024 GMC Sierra 2500 Denali $69,926 34 Great deals
2023 GMC Sierra 2500 Denali $59,903 13 Great deals
2022 GMC Sierra 2500 Denali $57,856 26 Great deals
2021 GMC Sierra 2500 Denali $57,518 25 Great deals
2019 GMC Sierra 2500 Denali $43,704 12 Great deals
2018 GMC Sierra 2500 Denali $45,672 14 Great deals
2017 GMC Sierra 2500 Denali $45,455 6 Good 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 $53,890, 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