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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $32,999

    219,544 mi.
    Est. $620/mo

    Luther Brookdale Chevrolet

    4.5
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    BROOKLYN CENTER, MN (361 mi)

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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $50,990

    98,228 mi.
    Est. $958/mo

    Fresno Buick GMC

    3.9
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    Fresno, CA (1,743 mi)
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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $57,340

    58,980 mi.
    Est. $1,078/mo

    Luther Burnsville Hyundai

    4.7
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    Burnsville, MN (346 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 Denali

    $41,000

    152,135 mi.
    Est. $771/mo

    Corwin Honda

    4.5
    Check Availability
    Fargo, ND (571 mi)
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  • Onyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 Denali

    $64,874

    $4K
    51,717 mi.
    Est. $1,219/mo

    Findlay Toyota Prescott

    4.8
    Check Availability
    Prescott, AZ (1,432 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 Denali

    $50,610

    $1K
    91,566 mi.
    Est. $951/mo

    Alpine Buick GMC South

    4.5
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    Colorado Springs, CO (929 mi)
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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $58,795

    $1K
    51,687 mi.
    Est. $1,105/mo

    Criswell Chevrolet GMC

    4.8
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    Gaithersburg, MD (579 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 Denali

    $55,997

    74,239 mi.
    Est. $1,053/mo

    Scranton GMC of Vernon

    4.4
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    Vernon, CT (779 mi)
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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $49,999

    105,339 mi.
    Est. $940/mo

    Phil Long Ford of Denver

    4.8
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    Denver, CO (925 mi)
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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $57,980

    $1K
    47,235 mi.
    Est. $1,090/mo

    Landers Chevrolet Cadillac of Joplin

    4.4
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    Joplin, MO (494 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 Denali

    $56,000

    $998
    49,837 mi.
    Est. $1,053/mo

    Jaguar Land Rover Minneapolis

    4.8
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    Minneapolis, MN (360 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 Denali

    $62,899

    $1K
    26,345 mi.
    Est. $1,182/mo

    Team Nissan

    4.6
    Check Availability
    Manchester, NH (829 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 Denali

    $56,434

    $300
    49,682 mi.
    Est. $1,061/mo

    Crest Lincoln

    4.7
    Check Availability
    Sterling Heights, MI (241 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 Denali

    $51,551

    $884
    91,553 mi.
    Est. $969/mo

    Smedley's Chevrolet

    4.6
    Check Availability
    Vandalia, OH (226 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 Denali

    $51,900

    77,689 mi.
    Est. $976/mo

    Sundance Chevrolet

    4.6
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    Grand Ledge, MI (161 mi)
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  • White 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 Denali

    $54,998

    $1K
    48,528 mi.
    Est. $1,034/mo

    CarMax Rochester

    Check Availability
    Rochester, NY (516 mi)
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  • Onyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 Denali

    $50,284

    100,129 mi.
    Est. $945/mo

    Anderson of Hunt Valley

    4.9
    Check Availability
    Cockeysville, MD (600 mi)
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  • White 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 DenaliWhite 2020 GMC Sierra 3500 Denali

    $49,249

    $250
    89,907 mi.
    Est. $926/mo

    The Internet Car Lot

    4.0
    Check Availability
    Omaha, NE (436 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 Denali

    $49,413

    109,993 mi.
    Est. $929/mo

    Mills GM

    4.8
    Check Availability
    Baxter, MN (451 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 Denali

    $55,990

    74,391 mi.
    Est. $1,052/mo

    Lynch GM Superstore

    4.0
    Check Availability
    Burlington, WI (65 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 Denali

    $59,415

    $797
    39,900 mi.
    Est. $1,117/mo

    Music City Autoplex

    4.8
    Check Availability
    Madison, TN (389 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 Denali

    $51,995

    103,513 mi.
    Est. $977/mo

    Carsandpickups.com of Austin

    4.5
    Check Availability
    Kyle, TX (1,000 mi)
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  • White Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 Denali

    $44,995

    89,563 mi.
    Est. $846/mo

    International Auto Sales

    4.0
    Check Availability
    Garland, TX (794 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 Denali 9 Good deals
2025 GMC Sierra 3500 Denali $81,099 24 Great deals
2024 GMC Sierra 3500 Denali $75,390 16 Great deals
2023 GMC Sierra 3500 Denali $62,679 32 Great deals
2022 GMC Sierra 3500 Denali $60,148 22 Great deals
2021 GMC Sierra 3500 Denali $56,451 13 Great deals
2019 GMC Sierra 3500 Denali $47,015 6 Great deals
2018 GMC Sierra 3500 Denali $47,416 26 Good deals
2017 GMC Sierra 3500 Denali $43,753 25 Good deals

About the 2020 GMC Sierra 3500 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 3500 Denali
FAQs

How much does the 2020 GMC Sierra 3500 Denali cost?

The 2020 GMC Sierra 3500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 3500 Denali is $55,157, with pricing starting at $32,999.

What are some similar vehicles and competitors of the 2020 GMC Sierra 3500 Denali?

The 2020 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2020 GMC Sierra 3500 Denali reliable?

The 2020 GMC Sierra 3500 has an average reliability rating of 4.9 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 3500 owners.

Ratings (9 reviews)

100% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
4.9
Value
4.7
Exterior
5.0
Reliability
4.9
Trims

Denali (2 styles)

Style
4WD Crew Cab 172" Denali 4WD Crew Cab 159" Denali
Inventory price
Starting at $65,700 Starting at $65,500
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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