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  • Ebony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 Denali

    $61,054

    $285
    28,844 mi.
    Est. $1,148/mo

    AutoCenters Nissan

    4.6
    Check Availability
    Herculaneum, MO (291 mi)

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  • Onyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 Denali

    $58,499

    $500
    68,424 mi.
    Est. $1,100/mo

    Starling Buick GMC Stuart

    4.9
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    Stuart, FL (1,095 mi)

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  • Onyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 Denali

    $59,990

    52,187 mi.
    Est. $1,128/mo

    Ed Napleton Honda St. Peters

    4.6
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    Saint Peters, MO (264 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 Denali

    $54,594

    80,252 mi.
    Est. $1,026/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (1,454 mi)
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  • White Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 Denali

    $39,998

    168,024 mi.
    Est. $752/mo

    Seattle Hyundai

    4.4
    Check Availability
    Seattle, WA (1,734 mi)
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  • Black 2021 GMC Sierra 3500 DenaliBlack 2021 GMC Sierra 3500 DenaliBlack 2021 GMC Sierra 3500 DenaliBlack 2021 GMC Sierra 3500 DenaliBlack 2021 GMC Sierra 3500 DenaliBlack 2021 GMC Sierra 3500 Denali

    $54,999

    83,435 mi.
    Est. $1,034/mo

    AutoNation Dodge Ram Colorado Springs

    4.3
    Check Availability
    Colorado Springs, CO (921 mi)
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  • Onyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 Denali

    $56,990

    62,000 mi.
    Est. $1,071/mo

    Bomnin Chevrolet West Kendall

    4.9
    Check Availability
    Miami, FL (1,197 mi)
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  • White Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 DenaliWhite Frost 2021 GMC Sierra 3500 Denali

    $54,906

    90,388 mi.
    Est. $1,032/mo

    Covert Buick GMC Bee Cave

    4.6
    Check Availability
    Austin, TX (986 mi)

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  • Ebony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 Denali

    $57,691

    $502
    37,853 mi.
    Est. $1,084/mo

    Buerkle Hyundai

    4.3
    Check Availability
    Saint Paul, MN (348 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 Denali

    $66,955

    $789
    39,154 mi.
    Est. $1,259/mo

    Hendrick Chevrolet Shawnee Mission

    4.7
    Check Availability
    Merriam, KS (420 mi)
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  • White Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 Denali

    $58,920

    45,792 mi.
    Est. $1,107/mo

    ALM Roswell

    4.4
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    Roswell, GA (571 mi)
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  • Summit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 Denali

    $47,990

    $3K
    91,183 mi.
    Est. $902/mo

    AutoNation Chrysler Jeep West

    4.6
    Check Availability
    Golden, CO (928 mi)
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  • Summit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 Denali

    $53,888

    $223
    60,979 mi.
    Est. $1,013/mo

    Huntley Ford

    4.3
    Check Availability
    Huntley, IL (45 mi)
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  • White Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 3500 Denali

    $45,999

    143,725 mi.
    Est. $865/mo

    BERNARD'S Chrysler Dodge Jeep RAM

    5.0
    Check Availability
    New Richmond, WI (333 mi)

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  • Cayenne Red Tintcoat 2021 GMC Sierra 3500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 3500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 3500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 3500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 3500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 3500 Denali

    $53,303

    98,012 mi.
    Est. $1,002/mo

    Corwin Ford of Tri-Cities

    4.5
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    Pasco, WA (1,582 mi)
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  • Summit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 Denali

    $59,595

    $2.4K
    66,155 mi.
    Est. $1,120/mo

    Good Chevrolet

    4.4
    Check Availability
    Renton, WA (1,728 mi)
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  • Summit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 DenaliSummit White 2021 GMC Sierra 3500 Denali

    $52,153

    $1K
    87,373 mi.
    Est. $980/mo

    Larry H. Miller Chrysler Jeep Dodge RAM Boise

    4.5
    Check Availability
    Boise, ID (1,451 mi)
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  • White Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 Denali

    $56,995

    54,003 mi.
    Est. $1,071/mo

    Unlimited Motors

    4.7
    Check Availability
    Elwood, IN (147 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 Denali

    $64,882

    52,429 mi.
    Est. $1,220/mo

    Weatherford Honda

    4.8
    Check Availability
    Weatherford, TX (844 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 DenaliEbony Twilight Metallic 2021 GMC Sierra 3500 Denali

    $58,692

    58,033 mi.
    Est. $1,103/mo

    Lenz Truck - Minocqua, WI

    4.7
    Check Availability
    Minocqua, WI (292 mi)

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  • Quicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 DenaliQuicksilver Metallic 2021 GMC Sierra 3500 Denali

    $38,980

    218,533 mi.
    Est. $733/mo

    Dave Kehl Chevrolet

    4.2
    Check Availability
    Mechanicsburg, OH (247 mi)
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  • Onyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 DenaliOnyx Black 2021 GMC Sierra 3500 Denali

    $49,500

    $2.5K
    99,219 mi.
    Est. $930/mo

    Pilson Auto Center of Charleston

    4.1
    Check Availability
    Charleston, IL (168 mi)
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  • Blue 2021 GMC Sierra 3500 DenaliBlue 2021 GMC Sierra 3500 DenaliBlue 2021 GMC Sierra 3500 DenaliBlue 2021 GMC Sierra 3500 DenaliBlue 2021 GMC Sierra 3500 DenaliBlue 2021 GMC Sierra 3500 Denali

    $58,998

    59,002 mi.
    Est. $1,109/mo

    CarMax Tampa

    Check Availability
    Tampa, FL (997 mi)
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  • Carbon Black Metallic 2021 GMC Sierra 3500 DenaliCarbon Black Metallic 2021 GMC Sierra 3500 DenaliCarbon Black Metallic 2021 GMC Sierra 3500 DenaliCarbon Black Metallic 2021 GMC Sierra 3500 DenaliCarbon Black Metallic 2021 GMC Sierra 3500 DenaliCarbon Black Metallic 2021 GMC Sierra 3500 Denali

    $32,900

    178,895 mi.
    Est. $618/mo

    Berkenkotter Motors Brighton

    4.0
    Check Availability
    Brighton, CO (905 mi)
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  • White Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 DenaliWhite Frost Tricoat 2021 GMC Sierra 3500 Denali

    $54,000

    $1K
    74,059 mi.
    Est. $1,015/mo

    CAR LUX

    4.2
    Check Availability
    Inglewood, CA (1,752 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 Denali 8 Good deals
2025 GMC Sierra 3500 Denali $81,276 17 Great deals
2024 GMC Sierra 3500 Denali $75,984 13 Great deals
2023 GMC Sierra 3500 Denali $62,866 29 Great deals
2022 GMC Sierra 3500 Denali $60,565 32 Great deals
2020 GMC Sierra 3500 Denali $54,292 10 Great deals
2019 GMC Sierra 3500 Denali $47,363 5 Great deals
2018 GMC Sierra 3500 Denali $45,935 30 Good deals
2017 GMC Sierra 3500 Denali $43,291 22 Good deals

About the 2021 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 2021 GMC Sierra 3500 Denali
FAQs

How much does the 2021 GMC Sierra 3500 Denali cost?

The 2021 GMC Sierra 3500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 3500 Denali is $55,958, with pricing starting at $32,900.

What are some similar vehicles and competitors of the 2021 GMC Sierra 3500 Denali?

The 2021 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 3500 Denali reliable?

The 2021 GMC Sierra 3500 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 3500 owners.

Ratings (2 reviews)

100% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.5
Interior
4.5
Performance
5.0
Value
4.0
Exterior
4.5
Reliability
4.0
Trims

Denali (2 styles)

Style
4WD Crew Cab 159" Denali 4WD Crew Cab 172" Denali
Inventory price
Starting at $66,700 Starting at $66,900
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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