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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

    $64,555

    53,664 mi.
    Est. $1,213/mo

    Kunes Buick GMC of Oak Creek

    4.1
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    Oak Creek, WI (74 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

    $53,255

    $821
    73,259 mi.
    Est. $1,001/mo

    Covert Buick GMC Bee Cave

    4.6
    Check Availability
    Austin, TX (986 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

    $58,900

    27,771 mi.
    Est. $1,107/mo

    Walser Buick GMC Roseville

    4.2
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    Roseville, MN (354 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

    $64,986

    $1K
    24,296 mi.
    Est. $1,222/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (1,442 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

    $42,000

    $500
    117,568 mi.
    Est. $789/mo

    Ed Morse Sawgrass Auto Mall

    4.3
    Check Availability
    Sunrise, FL (1,164 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

    $60,700

    $5.2K
    40,046 mi.
    Est. $1,141/mo

    Larry H. Miller Toyota Peoria

    4.6
    Check Availability
    Peoria, AZ (1,454 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

    $53,500

    $495
    99,275 mi.
    Est. $1,006/mo

    Corwin Buick GMC Cadillac Reno

    4.6
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    Reno, NV (1,683 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

    $44,540

    140,925 mi.
    Est. $837/mo

    AutoNation USA Austin

    4.1
    Check Availability
    Austin, TX (967 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

    $49,990

    $500
    105,323 mi.
    Est. $940/mo

    West Metro Buick GMC

    5.0
    Check Availability
    Monticello, MN (389 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

    $58,399

    $2K
    43,215 mi.
    Est. $1,098/mo

    Rountree Moore Chevrolet

    4.6
    Check Availability
    Lake City, FL (854 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

    $60,984

    $2K
    36,095 mi.
    Est. $1,146/mo

    Findlay Honda Henderson

    4.7
    Check Availability
    Henderson, NV (1,519 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

    $56,544

    $1.1K
    58,453 mi.
    Est. $1,063/mo

    Pinnacle Nissan

    4.6
    Check Availability
    Scottsdale, AZ (1,438 mi)
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  • White Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 Denali

    $57,994

    84,274 mi.
    Est. $1,090/mo

    Shottenkirk Honda Huntsville

    4.8
    Check Availability
    Huntsville, AL (496 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

    $58,997

    $1K
    47,868 mi.
    Est. $1,109/mo

    Central Buick GMC

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    Jonesboro, AR (451 mi)

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  • Summit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali Ultimate

    $69,396

    $4.1K
    22,201 mi.
    Est. $1,304/mo

    Auto Web Expo

    4.6
    Check Availability
    Plano, TX (796 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

    $56,500

    $500
    46,958 mi.
    Est. $1,062/mo

    Corwin Toyota Colorado Springs

    4.5
    Check Availability
    Colorado Springs, CO (921 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

    $57,970

    46,986 mi.
    Est. $1,090/mo

    ALM Kennesaw

    4.4
    Check Availability
    Kennesaw, GA (569 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

    $64,891

    $1.1K
    52,926 mi.
    Est. $1,220/mo

    Palmer Dodge Chrysler Jeep RAM

    4.6
    Check Availability
    Roswell, GA (570 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

    $56,383

    72,704 mi.
    Est. $1,060/mo

    Ron Tonkin Kia

    4.6
    Check Availability
    Gladstone, OR (1,752 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

    $57,776

    77,958 mi.
    Est. $1,086/mo

    AutoNation USA Austin

    4.1
    Check Availability
    Austin, TX (967 mi)

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  • Hunter Green 2021 GMC Sierra 2500 DenaliHunter Green 2021 GMC Sierra 2500 DenaliHunter Green 2021 GMC Sierra 2500 DenaliHunter Green 2021 GMC Sierra 2500 DenaliHunter Green 2021 GMC Sierra 2500 DenaliHunter Green 2021 GMC Sierra 2500 Denali

    $56,987

    64,014 mi.
    Est. $1,071/mo

    Dan Cummins Chevrolet Buick of Paris

    4.7
    Check Availability
    Paris, KY (311 mi)
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  • Onyx Black 2021 GMC Sierra 2500 Denali UltimateOnyx Black 2021 GMC Sierra 2500 Denali UltimateOnyx Black 2021 GMC Sierra 2500 Denali UltimateOnyx Black 2021 GMC Sierra 2500 Denali UltimateOnyx Black 2021 GMC Sierra 2500 Denali UltimateOnyx Black 2021 GMC Sierra 2500 Denali Ultimate

    $57,993

    41,324 mi.
    Est. $1,090/mo

    St Charles Chrysler Dodge Jeep RAM

    4.0
    Check Availability
    Saint Charles, IL (34 mi)
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  • White Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 Denali

    $65,377

    $1K
    31,442 mi.
    Est. $1,229/mo

    Huffines Chevrolet Lewisville

    4.9
    Check Availability
    Lewisville, TX (798 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

    $56,000

    80,538 mi.
    Est. $1,053/mo

    Ford of Franklin

    4.8
    Check Availability
    Franklin, TN (415 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

    $54,900

    $1K
    104,098 mi.
    Est. $1,032/mo

    Mandal Buick GMC Inc.

    4.6
    Check Availability
    D'lberville, MS (793 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

    $55,990

    88,140 mi.
    Est. $1,052/mo

    Mercedes-Benz of Kansas City South

    4.6
    Check Availability
    Kansas City, MO (422 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

    $53,989

    105,101 mi.
    Est. $1,015/mo

    Bob Brady Buick GMC

    4.9
    Check Availability
    Forsyth, IL (153 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 7 Great deals
2025 GMC Sierra 2500 Denali $75,566 23 Great deals
2024 GMC Sierra 2500 Denali $70,579 17 Great deals
2023 GMC Sierra 2500 Denali $59,881 54 Great deals
2022 GMC Sierra 2500 Denali $58,321 36 Great deals
2020 GMC Sierra 2500 Denali $53,029 9 Great deals
2019 GMC Sierra 2500 Denali $43,828 10 Great deals
2018 GMC Sierra 2500 Denali $44,780 48 Good deals
2017 GMC Sierra 2500 Denali $41,609 30 Good 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 $56,865, with pricing starting at $40,999.

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