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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $43,611

    88,959 mi.
    Est. $774/mo

    Chevrolet of Culver City

    3.8
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    Culver City, CA (1,752 mi)

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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $48,667

    89,017 mi.
    Est. $864/mo

    Al Serra Auto Plaza

    4.5
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    Grand Blanc Charter Township, MI (217 mi)

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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $49,679

    $230
    95,471 mi.
    Est. $882/mo

    Sill-TerHar Motors

    4.4
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    Broomfield, CO (921 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 Denali

    $50,999

    95,377 mi.
    Est. $906/mo

    Steve Schmitt, Inc.

    4.6
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    Highland, IL (242 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $49,899

    $799
    101,938 mi.
    Est. $886/mo

    Fred Anderson Acura

    4.8
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    Greenville, SC (566 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 Denali

    $40,884

    $900
    143,804 mi.
    Est. $726/mo

    Kernersville Chrysler Dodge Jeep RAM

    4.3
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    Kernersville, NC (570 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $56,999

    $1K
    50,236 mi.
    Est. $1,012/mo

    Three-Way Chevrolet

    4.5
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    Bakersfield, CA (1,745 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $40,299

    73,567 mi.
    Est. $716/mo

    LaFontaine Buick GMC of Ann Arbor

    4.8
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    Ann Arbor, MI (199 mi)

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  • White Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 Denali

    $43,495

    $440
    51,414 mi.
    Est. $772/mo

    Jim Schmidt Chevrolet

    4.2
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    Hicksville, OH (154 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $48,285

    89,934 mi.
    Est. $857/mo

    Copple Chevrolet GMC

    5.0
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    Louisville, NE (446 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $45,997

    $1K
    119,843 mi.
    Est. $817/mo

    Rubin Auto Group

    4.4
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    Boise, ID (1,452 mi)
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  • Silver 2018 GMC Sierra 2500 DenaliSilver 2018 GMC Sierra 2500 DenaliSilver 2018 GMC Sierra 2500 DenaliSilver 2018 GMC Sierra 2500 DenaliSilver 2018 GMC Sierra 2500 DenaliSilver 2018 GMC Sierra 2500 Denali

    $41,984

    133,940 mi.
    Est. $745/mo

    Drive-N-Motion

    4.4
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    Thornton, CO (916 mi)
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  • White 2018 GMC Sierra 2500 DenaliWhite 2018 GMC Sierra 2500 DenaliWhite 2018 GMC Sierra 2500 DenaliWhite 2018 GMC Sierra 2500 DenaliWhite 2018 GMC Sierra 2500 DenaliWhite 2018 GMC Sierra 2500 Denali

    $47,998

    80,670 mi.
    Est. $852/mo

    CarMax Cincinnati

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    Cincinnati, OH (242 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $42,995

    118,000 mi.
    Est. $763/mo

    Bob Johnson Used

    4.0
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    Rochester, NY (519 mi)

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  • White Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 Denali

    $48,300

    90,261 mi.
    Est. $858/mo

    McCarthy Auto World

    4.2
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    Coon Rapids, MN (367 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $39,500

    $200
    164,211 mi.
    Est. $701/mo

    GMC of Riverfront Park

    4.4
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    Spokane, WA (1,504 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 DenaliDark Slate Metallic 2018 GMC Sierra 2500 Denali

    $38,000

    182,727 mi.
    Est. $675/mo

    Freedom Chevrolet

    4.5
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    Fremont, MI (139 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $41,188

    151,165 mi.
    Est. $731/mo

    John Megel Ford

    4.3
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    Cleveland, GA (548 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $46,995

    $1K
    117,611 mi.
    Est. $834/mo

    CAL Cars Airway

    4.4
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    Airway Heights, WA (1,511 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 2500 Denali

    $59,989

    92,420 mi.
    Est. $1,065/mo

    Sid Dillon Nissan

    4.8
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    Lincoln, NE (476 mi)

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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $42,075

    150,080 mi.
    Est. $747/mo

    Gee Northwest Autos

    5.0
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    Spokane Valley, WA (1,493 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 DenaliQuicksilver Metallic 2018 GMC Sierra 2500 Denali

    $40,797

    $1.5K
    123,234 mi.
    Est. $724/mo

    Springs Automotive Group

    4.2
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    Colorado Springs, CO (925 mi)
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  • White Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 DenaliWhite Frost Tricoat 2018 GMC Sierra 2500 Denali

    $48,394

    68,310 mi.
    Est. $859/mo

    Ruby Mountain Motors Elko

    Check Availability
    Elko, NV (1,455 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $49,995

    93,330 mi.
    Est. $888/mo

    Billy Ray Taylor Auto Sales

    Check Availability
    Cullman, AL (533 mi)
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  • Black 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 Denali

    $43,750

    115,045 mi.
    Est. $777/mo

    Revvelation Motors

    Check Availability
    Lone Jack, MO (403 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $28,490

    215,755 mi.
    Est. $506/mo

    Royal Automotive

    Check Availability
    Weyauwega, WI (182 mi)
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  • Onyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 DenaliOnyx Black 2018 GMC Sierra 2500 Denali

    $38,995

    162,005 mi.
    Est. $692/mo

    H&R Motors

    Check Availability
    Rainbow City, AL (554 mi)
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  • Black 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 DenaliBlack 2018 GMC Sierra 2500 Denali

    $49,991

    94,088 mi.
    Est. $888/mo

    Auto Star Motors

    Check Availability
    Boise, ID (1,453 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 5 Great deals
2025 GMC Sierra 2500 Denali $75,227 20 Great deals
2024 GMC Sierra 2500 Denali $70,125 32 Great deals
2023 GMC Sierra 2500 Denali $60,018 14 Great deals
2022 GMC Sierra 2500 Denali $57,859 28 Great deals
2021 GMC Sierra 2500 Denali $57,465 29 Great deals
2020 GMC Sierra 2500 Denali $53,694 32 Great deals
2019 GMC Sierra 2500 Denali $43,271 13 Great deals
2017 GMC Sierra 2500 Denali $45,081 7 Good deals

About the 2018 GMC Sierra 2500 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 2500 Denali
FAQs

How much does the 2018 GMC Sierra 2500 Denali cost?

The 2018 GMC Sierra 2500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2018 Sierra 2500 Denali is $45,116, with pricing starting at $25,739.

What are some similar vehicles and competitors of the 2018 GMC Sierra 2500 Denali?

The 2018 GMC Sierra 2500 Denali compares to and/or competes against the following vehicles:


Is the 2018 GMC Sierra 2500 Denali reliable?

The 2018 GMC Sierra 2500 has an average reliability rating of 4.8 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 Sierra 2500 owners.

Ratings (37 reviews)

94% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
5.0
Value
4.8
Exterior
4.9
Reliability
4.8
Trims

Denali (2 styles)

Style
4WD Crew Cab 153.7" Denali 2WD Crew Cab 153.7" Denali
Inventory price
Starting at $59,600 Starting at $56,400
Combined MPG
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)
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GMC Sierra 2500 trims