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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

    $44,399

    $400
    140,451 mi.
    Est. $836/mo

    Landers Chrysler Dodge Jeep Ram of Norman

    4.3
    Norman, OK (703 mi)
    Check Availability

  • 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

    $51,300

    51,366 mi.
    Est. $966/mo

    East Dallas Volkswagen

    Garland, TX (796 mi)
    Check Availability

  • Gray 2020 GMC Sierra 3500 DenaliGray 2020 GMC Sierra 3500 DenaliGray 2020 GMC Sierra 3500 DenaliGray 2020 GMC Sierra 3500 DenaliGray 2020 GMC Sierra 3500 DenaliGray 2020 GMC Sierra 3500 Denali

    $47,233

    77,620 mi.
    Est. $890/mo

    Fountain Buick GMC

    4.7
    Orlando, FL (993 mi)
    Check Availability

  • 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

    $48,462

    $1K
    90,436 mi.
    Est. $913/mo

    Mercedes-Benz of Beaverton

    4.4
    Portland, OR (1,759 mi)
    Check Availability
  • 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

    $42,912

    $3.9K
    122,293 mi.
    Est. $808/mo

    Coggin Buick GMC

    4.5
    Jacksonville, FL (871 mi)
    Check Availability
  • 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

    $50,794

    $400
    78,421 mi.
    Est. $957/mo

    Sundance Chevrolet

    4.6
    Grand Ledge, MI (161 mi)
    Check Availability
  • 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

    $53,043

    81,395 mi.
    Est. $999/mo

    Vann York Toyota

    4.5
    High Point, NC (578 mi)
    Check Availability
  • 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

    $51,912

    76,009 mi.
    Est. $978/mo

    Scranton GMC of Vernon

    4.5
    Vernon, CT (779 mi)
    Check Availability
  • 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

    $44,399

    $400
    140,451 mi.
    Est. $836/mo

    Landers Chrysler Dodge Jeep Ram of Norman

    4.3
    Norman, OK (703 mi)
    Check Availability

  • 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

    $56,744

    41,650 mi.
    Est. $1,069/mo

    Mosaic Ford Zumbrota

    4.8
    Zumbrota, MN (304 mi)
    Check Availability
  • 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

    $54,486

    $3.5K
    53,368 mi.
    Est. $1,026/mo

    Holz Motors

    4.7
    Hales Corners, WI (76 mi)
    Check Availability
  • 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

    $52,599

    $500
    87,285 mi.
    Est. $991/mo

    Show Me Auto Mall

    4.7
    Harrisonville, MO (419 mi)
    Check Availability
  • 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

    $46,800

    102,897 mi.
    Est. $882/mo

    McKinney Buick GMC

    4.2
    McKinney, TX (779 mi)
    Check Availability
  • Silver 2020 GMC Sierra 3500 DenaliSilver 2020 GMC Sierra 3500 DenaliSilver 2020 GMC Sierra 3500 DenaliSilver 2020 GMC Sierra 3500 DenaliSilver 2020 GMC Sierra 3500 DenaliSilver 2020 GMC Sierra 3500 Denali

    $53,991

    80,697 mi.
    Est. $1,017/mo

    Legend Auto Sales Inc

    4.5
    Burien, WA (1,733 mi)
    Check Availability
  • 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

    $56,609

    $900
    42,248 mi.
    Est. $1,066/mo

    Kunes Apple Valley Buick GMC

    4.7
    Apple Valley, MN (343 mi)
    Check Availability

  • 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

    $50,999

    86,689 mi.
    Est. $961/mo

    Krystal Chrysler Jeep Dodge RAM FIAT

    4.8
    Warrensburg, NY (712 mi)
    Check Availability
  • 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

    $47,000

    $1K
    90,165 mi.
    Est. $885/mo

    Cable Dahmer of Topeka

    4.7
    Topeka, KS (468 mi)
    Check Availability
  • 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

    $48,725

    $3.5K
    81,453 mi.
    Est. $918/mo

    Glenn Polk Ford

    4.9
    Gainesville, TX (768 mi)
    Check Availability
  • 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

    $48,994

    113,088 mi.
    Est. $923/mo

    Advanced Auto Sales

    5.0
    North Attleborough, MA (837 mi)
    Check Availability
  • 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

    $52,998

    $2K
    71,624 mi.
    Est. $998/mo

    CarMax Murrieta

    4.5
    Murrieta, CA (1,705 mi)
    Check Availability
  • 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

    $51,948

    $3.5K
    81,002 mi.
    Est. $979/mo

    Golden Circle Chevrolet

    Lexington, TN (434 mi)
    Check Availability

  • 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

    $56,797

    72,166 mi.
    Est. $1,070/mo

    Smart Ford South Boston

    4.0
    South Boston, VA (589 mi)
    Check Availability
  • 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

    $47,240

    $1K
    78,372 mi.
    Est. $890/mo

    Buick GMC of Beaverton

    4.0
    Portland, OR (1,759 mi)
    Check Availability
  • 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

    $54,835

    53,144 mi.
    Est. $1,033/mo

    Coast Buick GMC

    4.4
    PORT RICHEY, FL (979 mi)
    Check Availability
  • 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

    $38,791

    176,187 mi.
    Est. $731/mo

    Inline Motors

    4.2
    Marysville, WA (1,727 mi)
    Check Availability
  • 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

    $51,889

    103,910 mi.
    Est. $978/mo

    Carter Motorcars

    Laurel, MS (710 mi)
    Check Availability
  • 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

    $43,177

    $680
    142,345 mi.
    Est. $813/mo

    Parks GMC Kernersville

    4.1
    Kernersville, NC (568 mi)
    Check Availability

  • 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

    $63,393

    40,956 mi.
    Est. $1,194/mo

    VIP Auto Sales & Service

    Middletown, OH (239 mi)
    Check Availability
  • 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

    $46,297

    116,970 mi.
    Est. $872/mo

    Coughlin Circleville

    Circleville, OH (293 mi)
    Check Availability
  • 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

    $57,544

    $400
    44,083 mi.
    Est. $1,084/mo

    Towne Ford Lincoln

    Orchard Park, NY (458 mi)
    Check Availability

GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 Denali 27 Great deals
2025 GMC Sierra 3500 Denali $76,117 39 Great deals
2024 GMC Sierra 3500 Denali $69,390 65 Great deals
2023 GMC Sierra 3500 Denali $59,733 35 Great deals
2022 GMC Sierra 3500 Denali $57,749 49 Great deals
2021 GMC Sierra 3500 Denali $53,820 29 Great deals
2019 GMC Sierra 3500 Denali $46,026 23 Great deals
2018 GMC Sierra 3500 Denali $46,039 8 Great deals
2017 GMC Sierra 3500 Denali $44,830 9 Great 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 $51,359, with pricing starting at $37,175.

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)