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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

    $51,170

    88,456 mi.
    Est. $962/mo

    Group 1 Buick GMC North

    4.4
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    Houston, TX (937 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

    $53,798

    56,513 mi.
    Est. $1,011/mo

    Executive Chevrolet

    4.8
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    Wallingford, CT (765 mi)

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  • Gray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 Denali

    $50,400

    101,942 mi.
    Est. $947/mo

    CRM Motors Pelham

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    Pelham, AL (594 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

    $48,239

    $135
    95,435 mi.
    Est. $907/mo

    Doug Smith Chrysler Dodge Jeep Ram - Spanish Fork

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    Spanish Fork, UT (1,255 mi)
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  • Summit White 2018 GMC Sierra 3500 DenaliSummit White 2018 GMC Sierra 3500 DenaliSummit White 2018 GMC Sierra 3500 DenaliSummit White 2018 GMC Sierra 3500 DenaliSummit White 2018 GMC Sierra 3500 DenaliSummit White 2018 GMC Sierra 3500 Denali

    $39,695

    155,592 mi.
    Est. $746/mo

    Corwin Buick GMC Cadillac Reno

    4.6
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    Reno, NV (1,683 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 3500 DenaliDark Slate Metallic 2018 GMC Sierra 3500 DenaliDark Slate Metallic 2018 GMC Sierra 3500 DenaliDark Slate Metallic 2018 GMC Sierra 3500 DenaliDark Slate Metallic 2018 GMC Sierra 3500 DenaliDark Slate Metallic 2018 GMC Sierra 3500 Denali

    $36,348

    $901
    155,921 mi.
    Est. $683/mo

    Lake Country Toyota

    4.5
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    Baxter, MN (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

    $49,608

    $392
    96,828 mi.
    Est. $932/mo

    Covert Hutto

    4.0
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    Hutto, TX (958 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

    $42,770

    113,225 mi.
    Est. $804/mo

    Allen Chevrolet Cadillac

    4.0
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    Monroe, MI (218 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

    $47,280

    88,929 mi.
    Est. $889/mo

    Schafer Chevrolet

    4.5
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    Pinconning, MI (231 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

    $25,991

    $2K
    215,788 mi.
    Est. $489/mo

    Spencer's Auto Sales

    5.0
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    Everett, WA (1,728 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

    $35,910

    203,895 mi.
    Est. $675/mo

    Coggin Buick GMC

    4.5
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    Jacksonville, FL (871 mi)
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  • Black 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 Denali

    $49,644

    118,946 mi.
    Est. $933/mo

    44 Auto Mart - Louisville

    4.6
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    Louisville, KY (275 mi)
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  • White Frost Tri-Coat 2018 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 3500 Denali

    $48,994

    $219
    81,102 mi.
    Est. $921/mo

    Salt Lake Valley Buick GMC

    4.5
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    South Salt Lake, UT (1,259 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

    $45,278

    $4.5K
    90,066 mi.
    Est. $851/mo

    Jarrett Scott Ford

    4.4
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    Plant City, FL (1,008 mi)
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  • Mineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 Denali

    $36,990

    167,631 mi.
    Est. $695/mo

    Paugh's Auto Sales

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    Binghamton, NY (604 mi)
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  • Gray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 DenaliGray 2018 GMC Sierra 3500 Denali

    $25,995

    $1K
    256,821 mi.
    Est. $489/mo

    CarTag USA

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    Bakersfield, CA (1,744 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

    $54,866

    33,382 mi.
    Est. $1,031/mo

    Napleton Palatine Chevy

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    Palatine, IL (28 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

    $24,999

    $5K
    177,587 mi.
    Est. $470/mo

    Kings Motor Co.

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    White Bear Lake, MN (349 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

    $39,944

    123,616 mi.
    Est. $751/mo

    Billion Buick GMC Cadillac

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    Sioux City, IA (449 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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  • 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

    $43,800

    119,573 mi.
    Est. $823/mo

    Silo Auto Sales

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    Gilbert, AZ (1,442 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

    $48,179

    $2K
    94,456 mi.
    Est. $906/mo

    St. Johnsbury Chrysler Dodge Jeep Ram

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    St. Johnsbury, VT (806 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

    $36,999

    178,687 mi.
    Est. $695/mo

    Unique Auto Group

    3.9
    Check Availability
    Houston, TX (948 mi)
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  • Mineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 DenaliMineral Metallic 2018 GMC Sierra 3500 Denali

    $40,798

    $2.6K
    139,876 mi.
    Est. $767/mo

    Seth Wadley Ford Lincoln

    3.7
    Check Availability
    Pauls Valley, OK (718 mi)
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  • Black 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 DenaliBlack 2018 GMC Sierra 3500 Denali

    $52,844

    93,686 mi.
    Est. $993/mo

    44 Auto Mart - Louisville

    4.6
    Check Availability
    Louisville, KY (275 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 Denali 11 Great deals
2025 GMC Sierra 3500 Denali $80,948 51 Great deals
2024 GMC Sierra 3500 Denali $75,438 60 Great deals
2023 GMC Sierra 3500 Denali $62,386 11 Great deals
2022 GMC Sierra 3500 Denali $60,070 27 Great deals
2021 GMC Sierra 3500 Denali $54,907 8 Great deals
2020 GMC Sierra 3500 Denali $54,215 15 Great deals
2019 GMC Sierra 3500 Denali $47,276 15 Great 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 $45,506, with pricing starting at $21,878.

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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