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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $45,849

    $1K
    94,123 mi.
    Est. $862/mo

    AutoNation Toyota Fort Myers

    4.7
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    Fort Myers, FL (1,106 mi)

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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $26,723

    $1K
    219,002 mi.
    Est. $502/mo

    Ross Downing GMC of Gonzales

    3.9
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    Gonzales, LA (827 mi)

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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $43,999

    103,211 mi.
    Est. $827/mo

    Rydell Chevrolet GMC of Grand Forks

    4.6
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    Grand Forks, ND (620 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $55,991

    70,929 mi.
    Est. $1,052/mo

    Ford of Kirkland

    4.5
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    Kirkland, WA (1,726 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $39,761

    126,782 mi.
    Est. $747/mo

    Arrigo Dodge Chrysler Jeep Ram Sawgrass

    4.6
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    Tamarac, FL (1,162 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $47,700

    $280
    89,372 mi.
    Est. $897/mo

    Ozark Chevrolet

    4.8
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    Ozark, MO (449 mi)
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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $44,864

    107,090 mi.
    Est. $843/mo

    Ellis Chevrolet GMC Buick

    4.5
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    Malone, NY (701 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $49,995

    57,896 mi.
    Est. $940/mo

    Laura Buick GMC

    4.6
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    Collinsville, IL (254 mi)

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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $51,000

    67,423 mi.
    Est. $959/mo

    Peruzzi Buick GMC

    4.5
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    Fairless Hills, PA (676 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 Denali

    $43,900

    $5.1K
    94,258 mi.
    Est. $825/mo

    Rairdon's Dodge Chrysler Jeep Ram of Marysville

    4.4
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    Arlington, WA (1,727 mi)
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  • Mineral 2018 GMC Sierra 3500 DenaliMineral 2018 GMC Sierra 3500 DenaliMineral 2018 GMC Sierra 3500 DenaliMineral 2018 GMC Sierra 3500 DenaliMineral 2018 GMC Sierra 3500 DenaliMineral 2018 GMC Sierra 3500 Denali

    $51,340

    $696
    71,694 mi.
    Est. $965/mo

    Sullivan Buick GMC Truck

    4.5
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    Ocala, FL (932 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $56,999

    35,097 mi.
    Est. $1,071/mo

    Chesrown Chevrolet GMC

    4.8
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    Delaware, OH (263 mi)
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  • White 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 Denali

    $54,800

    54,333 mi.
    Est. $1,030/mo

    Hoo Motors

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    Kiowa, CO (899 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $38,995

    136,490 mi.
    Est. $733/mo

    Lithia Ford of Boise

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    Boise, ID (1,452 mi)

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  • Quicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 Denali

    $49,500

    87,567 mi.
    Est. $930/mo

    Perry Auto Sales

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    Perry, MI (187 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $43,900

    130,587 mi.
    Est. $825/mo

    Lime Ridge Auto Sales

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    Mount Joy, PA (591 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 Denali

    $34,721

    $2.6K
    186,011 mi.
    Est. $653/mo

    Hupp Auto Center

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    Tuppers Plains, OH (358 mi)
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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $46,494

    116,498 mi.
    Est. $874/mo

    Uinta CDJR

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    Evanston, WY (1,204 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $41,949

    114,218 mi.
    Est. $788/mo

    KNB Motors Inc

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    Northlake, IL (15 mi)
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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $130,813

    802 mi.
    Est. $2,459/mo

    STG Auto Group Of Chandler

    2.7
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    Chandler, AZ (1,444 mi)

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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $22,000

    327,468 mi.
    Est. $414/mo

    Atlanta Best Used Cars

    3.9
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    Norcross, GA (579 mi)
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  • White 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 DenaliWhite 2018 GMC Sierra 3500 Denali

    $37,999

    178,687 mi.
    Est. $714/mo

    Unique Auto Group

    3.8
    Check Availability
    Houston, TX (948 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $38,995

    156,213 mi.
    Est. $733/mo

    McLarty Daniel Buick GMC

    4.6
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    Bentonville, AR (519 mi)
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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $43,500

    $300
    97,206 mi.
    Est. $818/mo

    Berkenkotter Motors Brighton

    4.1
    Check Availability
    Brighton, CO (905 mi)
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  • White Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 Denali

    $45,852

    105,553 mi.
    Est. $862/mo

    Crain Buick GMC of Springdale

    4.5
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    Springdale, AR (529 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 $80,911 18 Great deals
2024 GMC Sierra 3500 Denali $76,015 12 Great deals
2023 GMC Sierra 3500 Denali $62,819 39 Great deals
2022 GMC Sierra 3500 Denali $60,345 30 Great deals
2021 GMC Sierra 3500 Denali $56,363 16 Great deals
2020 GMC Sierra 3500 Denali $54,357 7 Great deals
2019 GMC Sierra 3500 Denali $47,380 5 Great deals
2017 GMC Sierra 3500 Denali $43,745 25 Good deals

About the 2018 GMC Sierra 3500 Denali

Basics

Denali shown.

Seating
5
Door count
4
Drivetrain
Rear Wheel Drive
Combined MPG
0
Transmission
6-Speed A/T
Engine
360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability)
Side view of the 2018 GMC Sierra 3500 Denali
FAQs

How much does the 2018 GMC Sierra 3500 Denali cost?

The 2018 GMC Sierra 3500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2018 Sierra 3500 Denali is $46,033, with pricing starting at $22,000.

What are some similar vehicles and competitors of the 2018 GMC Sierra 3500 Denali?

The 2018 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2018 GMC Sierra 3500 Denali reliable?

The 2018 GMC Sierra 3500 has an average reliability rating of 4.1 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 Sierra 3500 owners.

Ratings (8 reviews)

87% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.6
Interior
4.8
Performance
4.4
Value
3.8
Exterior
4.9
Reliability
4.1
Trims

Denali (4 styles)

Style
4WD Crew Cab 153.7" Denali 2WD Crew Cab 153.7" Denali 4WD Crew Cab 167.7" Denali 2WD Crew Cab 167.7" Denali
Inventory price
Starting at $59,700 Starting at $56,400 Starting at $59,900 Starting at $56,600
Combined MPG
0 0 0 0
Engine
360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability)
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