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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

    $59,200

    72,760 mi.
    Est. $1,113/mo

    Pryor Chevrolet Gmc

    4.7
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    Pryor, OK (566 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

    $45,985

    139,217 mi.
    Est. $864/mo

    Quality Buick GMC Cadillac

    4.1
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    Alton, IL (245 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

    $54,987

    74,239 mi.
    Est. $1,034/mo

    Scranton GMC of Vernon

    4.4
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    Vernon, CT (779 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

    $63,688

    $1.3K
    40,139 mi.
    Est. $1,197/mo

    Randy Marion Buick GMC of Huntersville

    4.7
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    Huntersville, NC (578 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

    $56,231

    $1.3K
    53,672 mi.
    Est. $1,057/mo

    Heritage Buick GMC

    4.6
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    Rockwall, TX (786 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

    $55,799

    47,771 mi.
    Est. $1,049/mo

    Walser Toyota

    4.2
    Check Availability
    Minneapolis, MN (353 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

    $56,998

    49,837 mi.
    Est. $1,071/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

    $63,941

    26,345 mi.
    Est. $1,202/mo

    Team Nissan

    4.6
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    Manchester, NH (829 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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  • Black 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 Denali

    $49,990

    $500
    82,676 mi.
    Est. $940/mo

    Tonkin Wilsonville Nissan

    4.7
    Check Availability
    Wilsonville, OR (1,760 mi)
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  • White Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 Denali

    $51,988

    96,120 mi.
    Est. $977/mo

    Mark Allen Chevrolet

    4.7
    Check Availability
    Glenpool, OK (610 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

    $56,734

    49,682 mi.
    Est. $1,066/mo

    Crest Lincoln

    4.7
    Check Availability
    Sterling Heights, MI (241 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

    $50,900

    $1K
    70,794 mi.
    Est. $957/mo

    Napleton's Northlake Chrysler Jeep Dodge RAM

    4.0
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    Palm Beach Gardens, FL (1,126 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

    $54,999

    113,062 mi.
    Est. $1,034/mo

    Susan Schein Automotive

    3.8
    Check Availability
    Pelham, AL (596 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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  • 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

    $44,000

    $500
    122,558 mi.
    Est. $827/mo

    Auto Boutique Jacksonville

    4.5
    Check Availability
    Jacksonville, FL (870 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
    Check Availability
    Grand Ledge, MI (161 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

    $54,999

    $672
    58,980 mi.
    Est. $1,034/mo

    Luther Family Buick GMC

    4.5
    Check Availability
    Fargo, ND (569 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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  • 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

    $49,499

    89,907 mi.
    Est. $930/mo

    The Internet Car Lot

    4.0
    Check Availability
    Omaha, NE (436 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

    $47,177

    104,916 mi.
    Est. $887/mo

    Atwater Chevrolet

    4.6
    Check Availability
    Aitkin, MN (440 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

    $60,212

    39,900 mi.
    Est. $1,132/mo

    Music City Autoplex

    4.8
    Check Availability
    Madison, TN (389 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

    $65,100

    29,891 mi.
    Est. $1,224/mo

    Lithia Chevrolet GMC of Helena

    4.3
    Check Availability
    Helena, MT (1,245 mi)
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  • White Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 DenaliWhite Frost 2020 GMC Sierra 3500 Denali

    $48,188

    $1K
    107,255 mi.
    Est. $906/mo

    Granger Motors

    4.4
    Check Availability
    Granger, IA (319 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 $81,228 20 Great deals
2024 GMC Sierra 3500 Denali $76,039 9 Great deals
2023 GMC Sierra 3500 Denali $62,746 33 Great deals
2022 GMC Sierra 3500 Denali $60,221 23 Great deals
2021 GMC Sierra 3500 Denali $56,314 16 Great deals
2019 GMC Sierra 3500 Denali $47,383 7 Great deals
2018 GMC Sierra 3500 Denali $46,432 27 Good deals
2017 GMC Sierra 3500 Denali $43,837 24 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 $54,573, 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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