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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $38,995

    136,501 mi.
    Est. $733/mo

    Lithia Ford of Boise

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    Boise, ID (1,452 mi)

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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $49,995

    57,896 mi.
    Est. $940/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (254 mi)

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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $45,849

    94,123 mi.
    Est. $862/mo

    AutoNation Toyota Fort Myers

    4.7
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    Fort Myers, FL (1,106 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $52,987

    $3K
    70,930 mi.
    Est. $996/mo

    Ford of Kirkland

    4.5
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    Kirkland, WA (1,726 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $39,200

    $561
    126,782 mi.
    Est. $737/mo

    Arrigo Dodge Chrysler Jeep Ram at Sawgrass

    4.5
    Check Availability
    Tamarac, FL (1,162 mi)
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  • Summit White 2018 GMC Sierra 3500 SLTSummit White 2018 GMC Sierra 3500 SLTSummit White 2018 GMC Sierra 3500 SLTSummit White 2018 GMC Sierra 3500 SLTSummit White 2018 GMC Sierra 3500 SLTSummit White 2018 GMC Sierra 3500 SLT

    $43,087

    103,679 mi.
    Est. $810/mo

    Patriot CDJR of Tulsa

    4.3
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    Tulsa, OK (597 mi)
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  • Summit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 Base

    $44,988

    39,631 mi.
    Est. $846/mo

    Auto Web Expo

    4.6
    Check Availability
    Plano, TX (796 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $47,700

    89,372 mi.
    Est. $897/mo

    Ozark Chevrolet

    4.8
    Check Availability
    Ozark, MO (449 mi)
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  • White Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 DenaliWhite Frost 2018 GMC Sierra 3500 Denali

    $45,850

    105,553 mi.
    Est. $862/mo

    Crain Buick GMC of Springdale

    4.5
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    Springdale, AR (529 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $51,000

    67,423 mi.
    Est. $959/mo

    Peruzzi Buick GMC

    4.5
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    Fairless Hills, PA (676 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $56,999

    35,098 mi.
    Est. $1,071/mo

    Chesrown Chevrolet GMC

    4.8
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    Delaware, OH (263 mi)
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  • Stone Blue Metallic 2018 GMC Sierra 3500 SLTStone Blue Metallic 2018 GMC Sierra 3500 SLTStone Blue Metallic 2018 GMC Sierra 3500 SLTStone Blue Metallic 2018 GMC Sierra 3500 SLTStone Blue Metallic 2018 GMC Sierra 3500 SLTStone Blue Metallic 2018 GMC Sierra 3500 SLT

    $43,995

    117,819 mi.
    Est. $827/mo

    Universal Auto Sales

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    Salem, OR (1,773 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 3500 SLTDark Slate Metallic 2018 GMC Sierra 3500 SLTDark Slate Metallic 2018 GMC Sierra 3500 SLTDark Slate Metallic 2018 GMC Sierra 3500 SLTDark Slate Metallic 2018 GMC Sierra 3500 SLTDark Slate Metallic 2018 GMC Sierra 3500 SLT

    $44,490

    $510
    95,354 mi.
    Est. $836/mo

    West Motor Company - Chrysler Dodge Jeep Ram

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    Preston, ID (1,241 mi)
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  • White 2018 GMC Sierra 3500 SLTWhite 2018 GMC Sierra 3500 SLTWhite 2018 GMC Sierra 3500 SLTWhite 2018 GMC Sierra 3500 SLTWhite 2018 GMC Sierra 3500 SLTWhite 2018 GMC Sierra 3500 SLT

    $41,700

    130,010 mi.
    Est. $784/mo

    Auto Hub

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    Commerce City, CO (912 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $41,949

    114,218 mi.
    Est. $788/mo

    KNB Motors Inc

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    Northlake, IL (15 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 DenaliQuicksilver Metallic 2018 GMC Sierra 3500 Denali

    $49,500

    87,567 mi.
    Est. $930/mo

    Perry Auto Sales

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    Perry, MI (187 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $44,990

    134,901 mi.
    Est. $846/mo

    Everest Motors, Inc.

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    Houston, TX (954 mi)
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  • Summit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 BaseSummit White 2018 GMC Sierra 3500 Base

    $24,995

    227,655 mi.
    Est. $470/mo

    Autolane

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    Portland, OR (1,750 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 3500 Denali

    $34,721

    186,011 mi.
    Est. $653/mo

    Hupp Auto Center

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    Tuppers Plains, OH (358 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $22,000

    327,468 mi.
    Est. $414/mo

    Atlanta Best Used Cars

    3.9
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    Norcross, GA (579 mi)
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  • Onyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 DenaliOnyx Black 2018 GMC Sierra 3500 Denali

    $38,440

    $555
    156,213 mi.
    Est. $723/mo

    McLarty Daniel Buick GMC

    4.6
    Check Availability
    Bentonville, AR (519 mi)
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  • White Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 DenaliWhite Frost Tricoat 2018 GMC Sierra 3500 Denali

    $43,999

    103,211 mi.
    Est. $827/mo

    Rydell Chevrolet GMC of Grand Forks

    4.6
    Check Availability
    Grand Forks, ND (620 mi)
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About the 2018 GMC Sierra 3500

Basics

Base shown (base trim).

Seating
3
Door count
2
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 3500
FAQs

Is the 2018 GMC Sierra 3500 reliable?

The 2018 GMC Sierra 3500 has an average reliability rating of 4.1 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 Sierra 3500 owners.

Is the 2018 GMC Sierra 3500 a good truck?

Below are the Cars.com consumer ratings for the 2018 GMC Sierra 3500.

(8 reviews)
Rating breakdown (out of 5):
Comfort
4.6
Interior
4.8
Performance
4.4
Value
3.8
Exterior
4.9
Reliability
4.1
Ratings (8 reviews)

87% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.6
Interior
4.8
Performance
4.4
Value
3.8
Exterior
4.9
Reliability
4.1
Trims

Base (8 styles)

Style
2WD Reg Cab 133.6" 4WD Reg Cab 133.6" 2WD Crew Cab 153.7" 4WD Crew Cab 153.7" 4WD Crew Cab 167.7" 2WD Crew Cab 167.7" 2WD Double Cab 158.1" 4WD Double Cab 158.1"
Inventory price
Starting at $36,100 Starting at $39,000 Starting at $40,600 Starting at $43,600 Starting at $43,800 Starting at $40,800 Starting at $39,400 Starting at $42,400
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)

Denali (4 styles)

Style
4WD Crew Cab 153.7" Denali 2WD Crew Cab 153.7" Denali 4WD Crew Cab 167.7" Denali 2WD Crew Cab 167.7" Denali
Inventory price
Starting at $59,700 Starting at $56,400 Starting at $59,900 Starting at $56,600
Combined MPG
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)

SLE (8 styles)

Style
4WD Reg Cab 133.6" SLE 2WD Reg Cab 133.6" SLE 4WD Crew Cab 153.7" SLE 2WD Crew Cab 153.7" SLE 4WD Crew Cab 167.7" SLE 2WD Double Cab 158.1" SLE 2WD Crew Cab 167.7" SLE 4WD Double Cab 158.1" SLE
Inventory price
Starting at $43,700 Starting at $40,600 Starting at $49,400 Starting at $46,300 Starting at $49,600 Starting at $44,300 Starting at $46,500 Starting at $47,600
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)

SLT (6 styles)

Style
4WD Crew Cab 153.7" SLT 2WD Crew Cab 167.7" SLT 2WD Double Cab 158.1" SLT 4WD Crew Cab 167.7" SLT 4WD Double Cab 158.1" SLT 2WD Crew Cab 153.7" SLT
Inventory price
Starting at $54,500 Starting at $51,500 Starting at $49,300 Starting at $54,700 Starting at $52,500 Starting at $51,400
Combined MPG
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)
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