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  • Quicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 Denali

    $55,913

    77,958 mi.
    Est. $993/mo

    AutoNation USA Austin

    4.1
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    Austin, TX (967 mi)

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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $57,739

    $1.2K
    43,624 mi.
    Est. $1,025/mo

    Southern Acura Newport News

    4.9
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    Newport News, VA (678 mi)

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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $57,341

    $1K
    59,949 mi.
    Est. $1,018/mo

    Iron Trail Chevrolet

    2.5
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    Virginia, MN (458 mi)
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  • Carbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 Denali

    $52,800

    $2.1K
    104,098 mi.
    Est. $938/mo

    Mandal Buick GMC Inc.

    4.6
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    D'lberville, MS (793 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 Denali

    $61,670

    10,411 mi.
    Est. $1,095/mo

    McDonald GMC Cadillac

    4.9
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    Saginaw, MI (213 mi)
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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $57,990

    84,389 mi.
    Est. $1,030/mo

    Nissan of Gadsden

    4.9
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    Gadsden, AL (554 mi)
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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $46,990

    139,502 mi.
    Est. $834/mo

    Impex Auto Sales

    4.8
    Check Availability
    Greensboro, NC (583 mi)
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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $53,900

    91,434 mi.
    Est. $957/mo

    Legacy Westbank Buick GMC

    4.5
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    Harvey, LA (841 mi)

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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $65,900

    $977
    37,835 mi.
    Est. $1,170/mo

    Ray Chevrolet

    4.6
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    Fox Lake, IL (46 mi)
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  • Hunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 Denali

    $55,216

    $1K
    74,082 mi.
    Est. $980/mo

    Hiley Hyundai of Fort Worth

    4.9
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    Fort Worth, TX (831 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 Denali

    $61,483

    $765
    36,095 mi.
    Est. $1,092/mo

    Findlay Nissan Henderson

    4.6
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    Henderson, NV (1,519 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 Denali

    $58,455

    $647
    63,965 mi.
    Est. $1,038/mo

    Garber Chevrolet Highland

    4.4
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    Highland, IN (26 mi)
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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $62,585

    38,853 mi.
    Est. $1,111/mo

    Liberty GMC

    4.5
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    Peoria, AZ (1,454 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 Denali

    $53,397

    135,072 mi.
    Est. $948/mo

    Kelley Buick GMC of Bartow

    4.0
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    Bartow, FL (1,020 mi)

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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 Denali

    $62,999

    39,173 mi.
    Est. $1,119/mo

    Larry H. Miller Chrysler Dodge Jeep Ram 104th

    4.2
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    Thornton, CO (917 mi)
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  • White 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 Denali

    $54,531

    72,704 mi.
    Est. $968/mo

    Ron Tonkin Kia

    4.6
    Check Availability
    Gladstone, OR (1,752 mi)
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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $55,486

    76,958 mi.
    Est. $985/mo

    Dan Cummins Chevrolet Buick of Paris

    4.7
    Check Availability
    Paris, KY (311 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 Denali

    $49,000

    $490
    105,323 mi.
    Est. $870/mo

    West Metro Buick GMC

    5.0
    Check Availability
    Monticello, MN (389 mi)
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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $65,003

    10,510 mi.
    Est. $1,154/mo

    Mercedes-Benz of Scarborough

    4.7
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    Scarborough, ME (885 mi)
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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $66,554

    54,203 mi.
    Est. $1,182/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (1,437 mi)

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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 Denali

    $58,725

    59,867 mi.
    Est. $1,043/mo

    Federico Chrysler Dodge Jeep RAM

    4.7
    Check Availability
    Wood River, IL (245 mi)
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  • Black 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 Denali

    $55,321

    $600
    93,281 mi.
    Est. $982/mo

    Pigg Enterprises Inc

    4.9
    Check Availability
    Prattville, AL (655 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 Denali

    $58,897

    $1K
    58,334 mi.
    Est. $1,046/mo

    Sunrise Ford

    4.2
    Check Availability
    Fort Pierce, FL (1,085 mi)
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  • White Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 Denali

    $50,050

    70,178 mi.
    Est. $889/mo

    Kent County Motors

    4.8
    Check Availability
    Dover, DE (664 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 Denali

    $66,373

    24,080 mi.
    Est. $1,178/mo

    D'Arcy Buick GMC

    4.4
    Check Availability
    Joliet, IL (35 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 Denali

    $55,899

    $630
    59,761 mi.
    Est. $993/mo

    Richardson Chevrolet Standish

    4.9
    Check Availability
    Standish, MI (237 mi)

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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $62,498

    52,509 mi.
    Est. $1,110/mo

    Genesis Of Greer

    4.6
    Check Availability
    Greer, SC (562 mi)
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  • White 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 Denali

    $62,999

    68,726 mi.
    Est. $1,119/mo

    Lumin Folsom Mitsubishi

    4.3
    Check Availability
    Folsom, CA (1,773 mi)
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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $58,474

    $204
    60,244 mi.
    Est. $1,038/mo

    Alpine Chevrolet

    4.5
    Check Availability
    Aurora, CO (909 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 29 Good deals
2025 GMC Sierra 2500 Denali $75,040 21 Great deals
2024 GMC Sierra 2500 Denali $70,284 38 Great deals
2023 GMC Sierra 2500 Denali $60,122 15 Great deals
2022 GMC Sierra 2500 Denali $57,922 31 Great deals
2020 GMC Sierra 2500 Denali $53,643 34 Great deals
2019 GMC Sierra 2500 Denali $43,134 12 Great deals
2018 GMC Sierra 2500 Denali $45,648 10 Great deals
2017 GMC Sierra 2500 Denali $44,617 5 Great deals

About the 2021 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 2021 GMC Sierra 2500 Denali
FAQs

How much does the 2021 GMC Sierra 2500 Denali cost?

The 2021 GMC Sierra 2500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 2500 Denali is $57,554, with pricing starting at $39,238.

What are some similar vehicles and competitors of the 2021 GMC Sierra 2500 Denali?

The 2021 GMC Sierra 2500 Denali compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 2500 Denali reliable?

The 2021 GMC Sierra 2500 has an average reliability rating of 4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 2500 owners.

Ratings (29 reviews)

75% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.7
Interior
4.6
Performance
4.3
Value
3.9
Exterior
4.6
Reliability
4.0
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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GMC Sierra 2500 trims