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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

    98,040 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

    $52,993

    84,118 mi.
    Est. $996/mo

    Minnesota Truck Headquarters of Brainerd

    4.7
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    Brainerd, MN (453 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

    $61,499

    52,661 mi.
    Est. $1,156/mo

    Romeo Chevrolet Buick GMC

    4.3
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    Lake Katrine, NY (701 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

    $53,455

    103,270 mi.
    Est. $1,005/mo

    Star GMC of Easton

    4.5
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    Easton, PA (646 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
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    Huntley, IL (45 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

    $55,955

    103,641 mi.
    Est. $1,052/mo

    Freedom Chrysler Dodge Jeep Ram North by Ed Morse

    4.7
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    Sherman, TX (750 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

    4.2
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    Colorado Springs, CO (921 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

    $59,802

    59,848 mi.
    Est. $1,124/mo

    AutoNation USA San Antonio

    4.6
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    San Antonio, TX (1,047 mi)

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  • White 2021 GMC Sierra 3500 DenaliWhite 2021 GMC Sierra 3500 DenaliWhite 2021 GMC Sierra 3500 DenaliWhite 2021 GMC Sierra 3500 DenaliWhite 2021 GMC Sierra 3500 DenaliWhite 2021 GMC Sierra 3500 Denali

    $64,000

    $950
    14,273 mi.
    Est. $1,203/mo

    Kevin Grover GMC

    4.9
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    Wagoner, OK (585 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

    $59,301

    $2.6K
    66,155 mi.
    Est. $1,115/mo

    Good Chevrolet

    4.4
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    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
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    Boise, ID (1,451 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
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    Saint Paul, MN (348 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

    $57,490

    62,000 mi.
    Est. $1,081/mo

    Bomnin Chevrolet West Kendall

    4.9
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    Miami, FL (1,197 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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  • 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
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    Peoria, AZ (1,454 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

    52,188 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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  • 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

    $52,400

    122,372 mi.
    Est. $985/mo

    Dahl Chevrolet GMC Winona

    4.8
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    Winona, MN (253 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

    $63,800

    $100
    33,036 mi.
    Est. $1,199/mo

    GMC of Riverfront Park

    4.4
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    Spokane, WA (1,504 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

    $62,498

    39,168 mi.
    Est. $1,175/mo

    Handy Cadillac Buick GMC

    4.0
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    Saint Albans, VT (758 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
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    Weatherford, TX (844 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

    $66,434

    48,573 mi.
    Est. $1,249/mo

    McGee Chevrolet of Middlebury

    4.8
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    Middlebury, VT (747 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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  • 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

    $56,500

    $250
    67,697 mi.
    Est. $1,062/mo

    Joseph Buick GMC Trucks

    4.5
    Check Availability
    Cincinnati, OH (244 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 $76,037 9 Great deals
2023 GMC Sierra 3500 Denali $62,746 33 Great deals
2022 GMC Sierra 3500 Denali $60,191 23 Great deals
2020 GMC Sierra 3500 Denali $54,532 9 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 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 $56,119, 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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