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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

    $52,754

    $549
    98,040 mi.
    Est. $992/mo

    Corwin Ford of Tri-Cities

    4.5
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    Pasco, WA (1,582 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

    $57,885

    $614
    68,424 mi.
    Est. $1,088/mo

    Starling Buick GMC Stuart

    4.9
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    Stuart, FL (1,095 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

    $58,500

    $495
    51,663 mi.
    Est. $1,100/mo

    Corwin Buick GMC Cadillac Reno

    4.6
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    Reno, NV (1,683 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

    $51,388

    $765
    87,373 mi.
    Est. $966/mo

    Larry H. Miller Chrysler Jeep Dodge RAM Boise

    4.5
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    Boise, ID (1,451 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

    $58,499

    42,578 mi.
    Est. $1,100/mo

    Romeo Chevrolet Buick GMC

    4.3
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    Lake Katrine, NY (701 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

    $62,999

    13,871 mi.
    Est. $1,184/mo

    Emmons Autoplex

    4.6
    Check Availability
    Webster, TX (951 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

    103,644 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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  • 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

    $71,874

    10,693 mi.
    Est. $1,351/mo

    Stevenson-Hendrick Honda Wilmington

    5.0
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    Wilmington, NC (749 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

    $66,566

    $1.1K
    39,154 mi.
    Est. $1,251/mo

    Hendrick Chevrolet Shawnee Mission

    4.7
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    Merriam, KS (420 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

    $59,900

    52,213 mi.
    Est. $1,126/mo

    Ed Napleton Honda St. Peters

    4.6
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    Saint Peters, MO (264 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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  • 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

    $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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  • 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

    $57,984

    $4K
    66,155 mi.
    Est. $1,090/mo

    Good Chevrolet

    4.4
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    Renton, WA (1,728 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

    $52,931

    $524
    103,270 mi.
    Est. $995/mo

    Star GMC of Easton

    4.5
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    Easton, PA (646 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

    $45,385

    $275
    150,310 mi.
    Est. $853/mo

    Northwoods Ford

    4.7
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    Minocqua, WI (296 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

    $56,000

    79,356 mi.
    Est. $1,053/mo

    York Ford of Brazil

    4.6
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    Brazil, IN (166 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

    $61,000

    36,209 mi.
    Est. $1,147/mo

    Minnesota Motor Co

    4.6
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    Fergus Falls, MN (516 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

    $65,990

    33,166 mi.
    Est. $1,240/mo

    Meadowland of Carmel

    4.2
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    Carmel, NY (722 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

    $49,250

    $250
    99,219 mi.
    Est. $926/mo

    Pilson Auto Center of Charleston

    4.1
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    Charleston, IL (168 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

    $62,298

    $200
    39,168 mi.
    Est. $1,171/mo

    Handy Cadillac Buick GMC

    4.0
    Check Availability
    Saint Albans, VT (758 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

    $51,795

    96,211 mi.
    Est. $974/mo

    Beaverton Car Company

    4.9
    Check Availability
    Beaverton, OR (1,770 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 $80,794 19 Great deals
2024 GMC Sierra 3500 Denali $75,453 14 Great deals
2023 GMC Sierra 3500 Denali $62,688 28 Great deals
2022 GMC Sierra 3500 Denali $59,998 26 Great deals
2020 GMC Sierra 3500 Denali $54,852 5 Great deals
2019 GMC Sierra 3500 Denali $47,678 33 Good deals
2018 GMC Sierra 3500 Denali $46,031 5 Great deals
2017 GMC Sierra 3500 Denali $44,001 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 $56,096, 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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