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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

    $49,999

    75,521 mi.
    Est. $940/mo

    Weld County Garage GMC Hummer

    4.5
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    Greeley, CO (896 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

    $36,995

    166,695 mi.
    Est. $695/mo

    Richardson Chevrolet Standish

    4.9
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    Standish, MI (237 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

    $39,220

    139,602 mi.
    Est. $737/mo

    AutoNation Toyota Corpus Christi

    4.9
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    Corpus Christi, TX (1,123 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

    $53,247

    67,073 mi.
    Est. $1,001/mo

    Prestige Chrysler Dodge Jeep RAM

    4.2
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    Longmont, CO (916 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

    $27,450

    243,084 mi.
    Est. $516/mo

    Suburban Ford of Ferndale

    4.7
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    Ferndale, MI (235 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

    $40,492

    $1.8K
    123,684 mi.
    Est. $761/mo

    Bob Caldwell Chrysler Jeep Dodge RAM

    4.6
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    Columbus, OH (275 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

    $36,998

    $990
    165,020 mi.
    Est. $695/mo

    AutoNation Chrysler Jeep Arapahoe

    4.7
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    Englewood, CO (915 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

    $42,999

    107,515 mi.
    Est. $808/mo

    Susan Schein Automotive

    3.8
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    Pelham, AL (596 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

    $48,500

    $400
    100,779 mi.
    Est. $912/mo

    Beaver Toyota of St. Augustine

    4.9
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    Augustine, FL (903 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

    $49,995

    81,739 mi.
    Est. $940/mo

    Motor Cars Mitsubishi

    4.3
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    Aurora, IL (32 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

    $42,555

    143,191 mi.
    Est. $800/mo

    Northwest Motor Group

    4.6
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    Pasco, WA (1,588 mi)
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  • White Frost 2018 GMC Sierra 2500 DenaliWhite Frost 2018 GMC Sierra 2500 DenaliWhite Frost 2018 GMC Sierra 2500 DenaliWhite Frost 2018 GMC Sierra 2500 DenaliWhite Frost 2018 GMC Sierra 2500 DenaliWhite Frost 2018 GMC Sierra 2500 Denali

    $40,500

    $200
    157,681 mi.
    Est. $761/mo

    Victory Nissan of Dickson

    4.7
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    Dickson, TN (406 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

    $41,997

    156,680 mi.
    Est. $789/mo

    Huntsville Trucks

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    Huntsville, AL (499 mi)
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  • Red 2018 GMC Sierra 2500 DenaliRed 2018 GMC Sierra 2500 DenaliRed 2018 GMC Sierra 2500 DenaliRed 2018 GMC Sierra 2500 DenaliRed 2018 GMC Sierra 2500 DenaliRed 2018 GMC Sierra 2500 Denali

    $49,995

    87,239 mi.
    Est. $940/mo

    Bleskin Motors

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    Great Falls, MT (1,217 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

    $32,495

    112,126 mi.
    Est. $611/mo

    Schererville Auto Sales

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    Schererville, IN (29 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. $733/mo

    H&R Motors

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    Rainbow City, AL (554 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

    $55,500

    41,315 mi.
    Est. $1,043/mo

    Tim Short Chrysler Dodge Jeep Ram Hazard

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    Hazard, KY (395 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

    $39,980

    166,022 mi.
    Est. $751/mo

    Dave Kehl Chevrolet

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    Mechanicsburg, OH (247 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

    $29,990

    215,755 mi.
    Est. $564/mo

    Royal Automotive

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    Weyauwega, WI (182 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

    $75,900

    82,374 mi.
    Est. $1,427/mo

    McElveen Buick GMC

    3.6
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    Summerville, SC (736 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

    $36,798

    $200
    167,619 mi.
    Est. $692/mo

    Dave Smith Coeur d'Alene

    3.6
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    Coeur d'Alene, ID (1,475 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

    $37,994

    $405
    88,562 mi.
    Est. $714/mo

    Tracy Chevrolet

    3.9
    Check Availability
    Tracy, CA (1,806 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

    $51,577

    $100
    77,495 mi.
    Est. $969/mo

    Bob Allen Motor Mall

    4.6
    Check Availability
    Danville, KY (329 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 9 Great deals
2025 GMC Sierra 2500 Denali $75,612 29 Great deals
2024 GMC Sierra 2500 Denali $70,490 23 Great deals
2023 GMC Sierra 2500 Denali $59,978 56 Great deals
2022 GMC Sierra 2500 Denali $58,286 43 Great deals
2021 GMC Sierra 2500 Denali $56,882 9 Great deals
2020 GMC Sierra 2500 Denali $52,953 10 Great deals
2019 GMC Sierra 2500 Denali $43,652 11 Great deals
2017 GMC Sierra 2500 Denali $41,600 31 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 $44,734, with pricing starting at $27,450.

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