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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $40,219

    $5.5K
    87,652 mi.
    Est. $714/mo

    Ewing Buick GMC

    4.5
    Check Availability
    Plano, TX (790 mi)

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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $39,500

    152,990 mi.
    Est. $701/mo

    Anchorage Chrysler Dodge Jeep RAM Center

    4.8
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    Anchorage, AK (2,848 mi)
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  • Quicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 Denali

    $39,995

    119,623 mi.
    Est. $710/mo

    Motor Cars Mitsubishi

    4.2
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    Aurora, IL (32 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $23,500

    284,633 mi.
    Est. $417/mo

    Lou Dominion's Deals on Wheels-Benton Harbor

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    Benton Harbor, MI (65 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $37,900

    150,519 mi.
    Est. $673/mo

    Lime Ridge Auto Sales

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    Mount Joy, PA (591 mi)
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  • Brown 2015 GMC Sierra 3500 DenaliBrown 2015 GMC Sierra 3500 DenaliBrown 2015 GMC Sierra 3500 DenaliBrown 2015 GMC Sierra 3500 DenaliBrown 2015 GMC Sierra 3500 DenaliBrown 2015 GMC Sierra 3500 Denali

    $33,995

    133,761 mi.
    Est. $604/mo

    Granite Auto Sales LLC

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    Spofford, NH (780 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $25,555

    198,595 mi.
    Est. $454/mo

    Autohaven LLC

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    Shelby Township, MI (242 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $54,444

    65,630 mi.
    Est. $967/mo

    44 Auto Mart - Bardstown

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    Bardstown, KY (303 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $49,495

    75,524 mi.
    Est. $879/mo

    Porterville Ford

    4.3
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    Porterville, CA (1,723 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $41,390

    82,955 mi.
    Est. $735/mo

    Ressler Chevrolet

    4.6
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    Bozeman, MT (1,197 mi)
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  • Black 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 Denali

    $36,500

    87,711 mi.
    Est. $648/mo

    A Car 4 You LLC- Brick

    3.6
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    Brick Township, NJ (715 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $38,999

    $5.2K
    111,349 mi.
    Est. $692/mo

    Carhub

    2.6
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    Stafford, VA (587 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $20,990

    264,415 mi.
    Est. $373/mo

    InTouch Auto Outlet

    3.3
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    Spotsylvania, VA (591 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $12,995

    400,589 mi.
    Est. $231/mo

    Texas Truck Barn, LLC

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    Fort Worth, TX (829 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $24,985

    265,721 mi.
    Est. $444/mo

    Paradise Automotive Group

    3.4
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    San Juan Capistrano, CA (1,731 mi)
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  • Iridium Metallic 2015 GMC Sierra 3500 DenaliIridium Metallic 2015 GMC Sierra 3500 DenaliIridium Metallic 2015 GMC Sierra 3500 DenaliIridium Metallic 2015 GMC Sierra 3500 DenaliIridium Metallic 2015 GMC Sierra 3500 DenaliIridium Metallic 2015 GMC Sierra 3500 Denali

    $53,995

    56,500 mi.
    Est. $959/mo

    Dastrup Auto Inc.

    3.0
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    Lindon, UT (1,255 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $33,995

    124,491 mi.
    Est. $604/mo

    Carz R Us LLC

    3.0
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    Mesa, AZ (1,431 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $36,995

    $1K
    122,403 mi.
    Est. $657/mo

    Lot 99

    1.1
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    Milwaukie, OR (1,752 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $39,999

    227,887 mi.
    Est. $710/mo

    Tampa Bay Truck Factory LLC

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    Tampa, FL (1,001 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $23,500

    159,000 mi.
    Est. $417/mo

    Northside Auto Imports LLC

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    Birmingham, AL (581 mi)
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  • Stone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 Denali

    $61,594

    $1K
    68,402 mi.
    Est. $1,094/mo

    Lifted Trucks - McKinney

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    McKinney, TX (776 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $42,499

    100,717 mi.
    Est. $755/mo

    Billion Dodge Chrysler Jeep RAM

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    Bozeman, MT (1,196 mi)
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  • $32,999

    156,511 mi.
    Est. $586/mo

    KEY AUTO MALL - GM

    4.0
    Check Availability
    Moline, IL (151 mi)
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  • Onyx Black 2015 GMC Sierra 3500 Denali

    Not Priced

    215,424 mi.
    Est. $0/mo

    American Direct Auto

    Check Availability
    Winnsboro, LA (708 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 Denali 7 Great deals
2025 GMC Sierra 3500 Denali $80,934 21 Great deals
2024 GMC Sierra 3500 Denali $75,436 35 Great deals
2023 GMC Sierra 3500 Denali $63,136 5 Great deals
2022 GMC Sierra 3500 Denali $60,311 17 Great deals
2021 GMC Sierra 3500 Denali $54,443 9 Great deals
2020 GMC Sierra 3500 Denali $54,548 8 Great deals
2019 GMC Sierra 3500 Denali $44,842 8 Great deals
2018 GMC Sierra 3500 Denali $46,220 8 Great deals
2017 GMC Sierra 3500 Denali $45,175 5 Great deals

About the 2015 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 2015 GMC Sierra 3500 Denali
FAQs

How much does the 2015 GMC Sierra 3500 Denali cost?

The 2015 GMC Sierra 3500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2015 Sierra 3500 Denali is $36,921, with pricing starting at $12,995.

What are some similar vehicles and competitors of the 2015 GMC Sierra 3500 Denali?

The 2015 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2015 GMC Sierra 3500 Denali reliable?

The 2015 GMC Sierra 3500 has an average reliability rating of 4.6 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2015 Sierra 3500 owners.

Ratings (13 reviews)

92% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.6
Interior
4.8
Performance
4.7
Value
4.5
Exterior
4.7
Reliability
4.6
Trims

Denali (8 styles)

Style
2WD Crew Cab 167.7" Denali 4WD Crew Cab 167.7" Denali 2WD Crew Cab 167.7" Denali 4WD Crew Cab 167.7" Denali 2WD Crew Cab 153.7" Denali 4WD Crew Cab 153.7" Denali 2WD Crew Cab 153.7" Denali 4WD Crew Cab 153.7" Denali
Inventory price
Starting at $53,530 Starting at $56,885 Starting at $50,835 Starting at $54,190 Starting at $50,640 Starting at $56,690 Starting at $53,335 Starting at $53,995
Combined MPG
0 0 0 0 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) 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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