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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

    $40,348

    88,963 mi.
    Est. $760/mo

    Chevrolet of Culver City

    3.8
    Culver City, CA (1,752 mi)
    Check Availability

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

    $48,060

    $1.8K
    72,664 mi.
    Est. $905/mo

    Mercedes-Benz of Fairfield

    4.7
    Fairfield, CA (1,827 mi)
    Check Availability

  • 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

    $37,977

    $2.8K
    134,685 mi.
    Est. $715/mo

    McKinney Buick GMC

    4.2
    McKinney, TX (779 mi)
    Check Availability
  • 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

    $47,189

    89,345 mi.
    Est. $889/mo

    Northtown Automotive, Inc

    4.6
    Yankton, SD (503 mi)
    Check Availability
  • 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

    $34,795

    $200
    150,080 mi.
    Est. $656/mo

    Gee Northwest Autos

    5.0
    Spokane Valley, WA (1,493 mi)
    Check Availability
  • 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

    $45,394

    108,526 mi.
    Est. $855/mo

    i.g. Burton Buick GMC of Glen Burnie

    4.6
    Glen Burnie, MD (608 mi)
    Check Availability
  • Gray 2018 GMC Sierra 2500 DenaliGray 2018 GMC Sierra 2500 DenaliGray 2018 GMC Sierra 2500 DenaliGray 2018 GMC Sierra 2500 DenaliGray 2018 GMC Sierra 2500 DenaliGray 2018 GMC Sierra 2500 Denali

    $43,983

    $400
    129,388 mi.
    Est. $829/mo

    TX Auto Group Houston

    4.0
    Houston, TX (947 mi)
    Check Availability
  • 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

    $37,903

    $400
    95,982 mi.
    Est. $714/mo

    Junction Auto Family - Chrysler Jeep Dodge Ram Buick GMC

    4.9
    Chardon, OH (334 mi)
    Check Availability
  • 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

    $58,994

    $804
    53,110 mi.
    Est. $1,111/mo

    Land Rover Rocklin

    4.8
    Rocklin, CA (1,771 mi)
    Check Availability
  • 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

    $32,391

    $1.8K
    181,740 mi.
    Est. $610/mo

    Vanguard Buick GMC of Carrollton

    4.2
    Carrollton, TX (798 mi)
    Check Availability
  • 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

    $38,145

    $2K
    133,532 mi.
    Est. $719/mo

    Hatchett Buick GMC

    4.6
    Wichita, KS (584 mi)
    Check Availability
  • 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

    $35,394

    171,032 mi.
    Est. $667/mo

    Nelson GMC

    4.7
    Wagoner, OK (585 mi)
    Check Availability
  • White Frost Tri-Coat 2018 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2018 GMC Sierra 2500 Denali

    $30,449

    199,517 mi.
    Est. $574/mo

    Key Acura of Portsmouth

    4.8
    Portsmouth, NH (862 mi)
    Check Availability
  • 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

    $40,499

    132,697 mi.
    Est. $763/mo

    KNB Motors Inc

    Northlake, IL (15 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

    $43,795

    $497
    119,843 mi.
    Est. $825/mo

    Rubin Auto Group

    Boise, ID (1,452 mi)
    Check Availability
  • Summit White 2018 GMC Sierra 2500 DenaliSummit White 2018 GMC Sierra 2500 DenaliSummit White 2018 GMC Sierra 2500 DenaliSummit White 2018 GMC Sierra 2500 DenaliSummit White 2018 GMC Sierra 2500 DenaliSummit White 2018 GMC Sierra 2500 Denali

    $39,799

    159,808 mi.
    Est. $750/mo

    Roberts Auto Services

    Sanford, NC (635 mi)
    Check Availability
  • 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

    $47,699

    72,029 mi.
    Est. $899/mo

    Mark McLarty Toyota

    3.9
    North Little Rock, AR (549 mi)
    Check Availability
  • 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

    $53,194

    78,767 mi.
    Est. $1,002/mo

    Furrst Class Cars

    3.5
    Charlotte, NC (593 mi)
    Check Availability
  • 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

    $43,999

    173,019 mi.
    Est. $829/mo

    Motorpoint Roswell

    3.9
    Roswell, GA (572 mi)
    Check Availability
  • 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

    $41,746

    $3.6K
    113,073 mi.
    Est. $786/mo

    Corwin Motors Kalispell

    4.5
    Kalispell, MT (1,367 mi)
    Check Availability
  • Dark Slate 2018 GMC Sierra 2500 DenaliDark Slate 2018 GMC Sierra 2500 DenaliDark Slate 2018 GMC Sierra 2500 DenaliDark Slate 2018 GMC Sierra 2500 DenaliDark Slate 2018 GMC Sierra 2500 DenaliDark Slate 2018 GMC Sierra 2500 Denali

    $50,698

    128,426 mi.
    Est. $955/mo

    Furrst Class Cars

    3.5
    Charlotte, NC (593 mi)
    Check Availability
  • 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

    $42,990

    98,358 mi.
    Est. $810/mo

    Humes Chrysler Jeep Dodge RAM

    4.9
    Waterford, PA (393 mi)
    Check Availability
  • 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

    $38,700

    $800
    149,818 mi.
    Est. $729/mo

    Andy Mohr Chevrolet

    4.4
    Plainfield, IN (164 mi)
    Check Availability
  • 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

    $40,348

    88,963 mi.
    Est. $760/mo

    Chevrolet of Culver City

    3.8
    Culver City, CA (1,752 mi)
    Check Availability
  • 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

    $44,899

    95,163 mi.
    Est. $846/mo

    Golden Motors

    Columbia, SC (643 mi)
    Check Availability
  • 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

    $38,900

    149,939 mi.
    Est. $733/mo

    AutoMart

    Derry, NH (836 mi)
    Check Availability

GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 15 Great deals
2025 GMC Sierra 2500 Denali $70,015 76 Great deals
2024 GMC Sierra 2500 Denali $65,396 152 Great deals
2023 GMC Sierra 2500 Denali $56,152 23 Great deals
2022 GMC Sierra 2500 Denali $53,981 51 Great deals
2021 GMC Sierra 2500 Denali $53,821 54 Great deals
2020 GMC Sierra 2500 Denali $51,018 90 Great deals
2019 GMC Sierra 2500 Denali $45,073 12 Great deals
2017 GMC Sierra 2500 Denali $40,453 16 Great 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 $41,799, with pricing starting at $22,900.

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)

2018 GMC Sierra 2500 trims