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  • Black 2018 GMC Sierra 2500 Denali

    $49,999

    75,412 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

    $230
    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

    $38,995

    139,602 mi.
    Est. $733/mo

    AutoNation Toyota Corpus Christi

    4.9
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    Corpus Christi, TX (1,123 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

    $48,900

    100,779 mi.
    Est. $919/mo

    Beaver Toyota of St. Augustine

    4.9
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    Augustine, FL (903 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

    $54,888

    $100
    60,490 mi.
    Est. $1,032/mo

    Randy Marion Buick GMC of Huntersville

    4.7
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    Huntersville, NC (578 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

    $51,677

    77,495 mi.
    Est. $971/mo

    Bob Allen Motor Mall

    4.6
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    Danville, KY (329 mi)
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  • Quartz 2018 GMC Sierra 2500 DenaliQuartz 2018 GMC Sierra 2500 DenaliQuartz 2018 GMC Sierra 2500 DenaliQuartz 2018 GMC Sierra 2500 DenaliQuartz 2018 GMC Sierra 2500 DenaliQuartz 2018 GMC Sierra 2500 Denali

    $46,971

    105,200 mi.
    Est. $883/mo

    Kendall Ford of Marysville

    4.5
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    Marysville, WA (1,727 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

    $50,988

    77,725 mi.
    Est. $958/mo

    Berkshire Mazda

    4.8
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    Lenox, MA (737 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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  • 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

    $53,050

    67,090 mi.
    Est. $997/mo

    Rick Hendrick Chevrolet of Duluth

    4.9
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    Duluth, GA (580 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

    $44,250

    $500
    114,600 mi.
    Est. $832/mo

    Koons Woodbridge Ford

    4.1
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    Woodbridge, VA (588 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

    $31,000

    $2.8K
    198,747 mi.
    Est. $583/mo

    Brannon Honda

    4.7
    Check Availability
    Birmingham, AL (576 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

    $39,887

    157,681 mi.
    Est. $750/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

    $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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  • 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

    $48,990

    $2K
    91,240 mi.
    Est. $921/mo

    VW of Olympia

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    Olympia, WA (1,761 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

    $29,990

    215,755 mi.
    Est. $564/mo

    Royal Automotive

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    Weyauwega, WI (182 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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  • 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

    $47,896

    $1.1K
    88,384 mi.
    Est. $900/mo

    Crump Reese Motor Company

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    Tremonton, UT (1,260 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

    $43,500

    119,930 mi.
    Est. $818/mo

    Alderman Automotive

    4.3
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    Fishers, IN (157 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

    $1K
    156,680 mi.
    Est. $789/mo

    Huntsville Trucks

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    Huntsville, AL (499 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

    $33,574

    150,500 mi.
    Est. $631/mo

    Private seller: Orlando

    Contact Seller
    Webster, NY (527 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

    $38,464

    $1.5K
    88,561 mi.
    Est. $723/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

    $50,990

    $710
    47,359 mi.
    Est. $958/mo

    David Scott Lee Buick GMC

    4.7
    Check Availability
    Crestview, FL (774 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

    117,611 mi.
    Est. $883/mo

    CAL Cars Airway

    4.3
    Check Availability
    Airway Heights, WA (1,511 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 6 Great deals
2025 GMC Sierra 2500 Denali $75,370 36 Great deals
2024 GMC Sierra 2500 Denali $70,490 14 Great deals
2023 GMC Sierra 2500 Denali $59,909 57 Great deals
2022 GMC Sierra 2500 Denali $58,208 39 Great deals
2021 GMC Sierra 2500 Denali $56,661 17 Great deals
2020 GMC Sierra 2500 Denali $52,728 9 Great deals
2019 GMC Sierra 2500 Denali $44,051 9 Great deals
2017 GMC Sierra 2500 Denali $42,167 28 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 $43,851, with pricing starting at $29,990.

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