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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $57,340

    58,980 mi.
    Est. $1,078/mo

    Luther Burnsville Hyundai

    4.7
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    Burnsville, MN (346 mi)

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  • Carbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 Denali

    $58,409

    72,834 mi.
    Est. $1,098/mo

    Pryor Chevrolet Gmc

    4.7
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    Pryor, OK (566 mi)

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  • Summit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 Base

    $38,374

    84,825 mi.
    Est. $721/mo

    Doug Smith Chrysler Dodge Jeep Ram - Spanish Fork

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    Spanish Fork, UT (1,255 mi)
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  • Summit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 Base

    $28,371

    $3.6K
    192,137 mi.
    Est. $533/mo

    Jeff Wyler Honda in Florence

    4.7
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    Florence, KY (254 mi)
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  • Onyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 Denali

    $69,500

    15,897 mi.
    Est. $1,306/mo

    Stevenson-Hendrick Honda Wilmington

    5.0
    Check Availability
    Wilmington, NC (749 mi)
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  • White Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 DenaliWhite Frost Tricoat 2020 GMC Sierra 3500 Denali

    $49,884

    77,761 mi.
    Est. $938/mo

    Kernersville Chrysler Dodge Jeep RAM

    4.3
    Check Availability
    Kernersville, NC (570 mi)
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  • Summit White 2020 GMC Sierra 3500 SLTSummit White 2020 GMC Sierra 3500 SLTSummit White 2020 GMC Sierra 3500 SLTSummit White 2020 GMC Sierra 3500 SLTSummit White 2020 GMC Sierra 3500 SLTSummit White 2020 GMC Sierra 3500 SLT

    $52,775

    68,661 mi.
    Est. $992/mo

    Fort Collins Dodge, Chrysler, Jeep, RAM

    4.9
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    Fort Collins, CO (910 mi)
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  • Summit White 2020 GMC Sierra 3500 AT4Summit White 2020 GMC Sierra 3500 AT4Summit White 2020 GMC Sierra 3500 AT4Summit White 2020 GMC Sierra 3500 AT4Summit White 2020 GMC Sierra 3500 AT4Summit White 2020 GMC Sierra 3500 AT4

    $48,766

    $840
    91,792 mi.
    Est. $917/mo

    John Elway Chevrolet - Broadway

    4.2
    Check Availability
    Englewood, CO (920 mi)

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  • Pacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 Denali

    $59,671

    36,281 mi.
    Est. $1,122/mo

    Gettel Chevrolet Buick GMC of Charlotte County

    4.4
    Check Availability
    Punta Gorda, FL (1,082 mi)
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  • Summit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 BaseSummit White 2020 GMC Sierra 3500 Base

    $35,495

    35,147 mi.
    Est. $667/mo

    Thompson Buick, GMC, Cadillac

    4.8
    Check Availability
    Springfield, MO (444 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 Denali

    $55,588

    $560
    49,837 mi.
    Est. $1,045/mo

    Jaguar Land Rover Minneapolis

    4.8
    Check Availability
    Minneapolis, MN (360 mi)
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  • Black 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 DenaliBlack 2020 GMC Sierra 3500 Denali

    $47,990

    $1K
    82,676 mi.
    Est. $902/mo

    Tonkin Wilsonville Nissan

    4.7
    Check Availability
    Wilsonville, OR (1,760 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 DenaliCarbon Black Metallic 2020 GMC Sierra 3500 Denali

    $56,991

    53,672 mi.
    Est. $1,071/mo

    Heritage Buick GMC

    4.6
    Check Availability
    Rockwall, TX (786 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 3500 DenaliDark Sky Metallic 2020 GMC Sierra 3500 DenaliDark Sky Metallic 2020 GMC Sierra 3500 DenaliDark Sky Metallic 2020 GMC Sierra 3500 DenaliDark Sky Metallic 2020 GMC Sierra 3500 DenaliDark Sky Metallic 2020 GMC Sierra 3500 Denali

    $64,889

    20,992 mi.
    Est. $1,220/mo

    Thompson Buick Cadillac GMC

    3.8
    Check Availability
    Raleigh, NC (641 mi)

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  • Brownstone Metallic 2020 GMC Sierra 3500 SLTBrownstone Metallic 2020 GMC Sierra 3500 SLTBrownstone Metallic 2020 GMC Sierra 3500 SLTBrownstone Metallic 2020 GMC Sierra 3500 SLTBrownstone Metallic 2020 GMC Sierra 3500 SLTBrownstone Metallic 2020 GMC Sierra 3500 SLT

    $51,922

    $2.2K
    69,265 mi.
    Est. $976/mo

    Al Piemonte Buick GMC

    4.5
    Check Availability
    Elmhurst, IL (17 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 Denali

    $51,551

    $884
    91,553 mi.
    Est. $969/mo

    Smedley's Chevrolet

    4.6
    Check Availability
    Vandalia, OH (226 mi)
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  • Onyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 Denali

    $59,864

    51,717 mi.
    Est. $1,125/mo

    Findlay Toyota Prescott

    4.8
    Check Availability
    Prescott, AZ (1,432 mi)
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  • Onyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 DenaliOnyx Black 2020 GMC Sierra 3500 Denali

    $85,432

    21,336 mi.
    Est. $1,606/mo

    Zeigler Honda of Racine

    4.6
    Check Availability
    Mt Pleasant, WI (60 mi)
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  • Summit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 DenaliSummit White 2020 GMC Sierra 3500 Denali

    $49,999

    105,339 mi.
    Est. $940/mo

    Phil Long Ford of Denver

    4.8
    Check Availability
    Denver, CO (925 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 DenaliPacific Blue Metallic 2020 GMC Sierra 3500 Denali

    $47,895

    $600
    92,755 mi.
    Est. $900/mo

    Bob Johnson Used

    4.0
    Check Availability
    Rochester, NY (519 mi)

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  • Onyx Black 2020 GMC Sierra 3500 AT4Onyx Black 2020 GMC Sierra 3500 AT4Onyx Black 2020 GMC Sierra 3500 AT4Onyx Black 2020 GMC Sierra 3500 AT4Onyx Black 2020 GMC Sierra 3500 AT4Onyx Black 2020 GMC Sierra 3500 AT4

    $54,971

    65,720 mi.
    Est. $1,033/mo

    Kendall Ford of Marysville

    4.6
    Check Availability
    Marysville, WA (1,727 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 3500 Denali

    $62,224

    26,345 mi.
    Est. $1,170/mo

    Team Nissan

    4.6
    Check Availability
    Manchester, NH (829 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 DenaliQuicksilver Metallic 2020 GMC Sierra 3500 Denali

    $58,518

    63,466 mi.
    Est. $1,100/mo

    Platinum Chevrolet

    4.4
    Check Availability
    Santa Rosa, CA (1,856 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 3500 Denali

    $41,000

    152,135 mi.
    Est. $771/mo

    Corwin Honda

    4.5
    Check Availability
    Fargo, ND (571 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 $82,690 11 Great deals
2025 GMC Sierra 3500 $73,807 74 Great deals
2024 GMC Sierra 3500 $69,450 122 Great deals
2023 GMC Sierra 3500 $56,793 20 Great deals
2022 GMC Sierra 3500 $55,143 51 Great deals
2021 GMC Sierra 3500 $53,362 30 Great deals
2019 GMC Sierra 3500 $44,042 26 Great deals
2018 GMC Sierra 3500 $42,679 19 Great deals
2017 GMC Sierra 3500 $40,012 9 Great deals

About the 2020 GMC Sierra 3500

Basics

Base shown (base trim).

Seating
2
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
0
Transmission
6-Speed A/T
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
Side view of the 2020 GMC Sierra 3500
FAQs

How much does the 2020 GMC Sierra 3500 cost?

The 2020 GMC Sierra 3500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 3500 is $52,744, with pricing starting at $28,371.

What are some similar vehicles and competitors of the 2020 GMC Sierra 3500?

The 2020 GMC Sierra 3500 compares to and/or competes against the following vehicles:


Is the 2020 GMC Sierra 3500 reliable?

The 2020 GMC Sierra 3500 has an average reliability rating of 4.9 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 3500 owners.

Is the 2020 GMC Sierra 3500 a good truck?

Below are the Cars.com consumer ratings for the 2020 GMC Sierra 3500.

(9 reviews)
Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
4.9
Value
4.7
Exterior
5.0
Reliability
4.9
Ratings (9 reviews)

100% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
4.9
Value
4.7
Exterior
5.0
Reliability
4.9
Trims

AT4 (2 styles)

Style
4WD Crew Cab 159" AT4 4WD Crew Cab 172" AT4
Inventory price
Starting at $59,500 Starting at $59,700
Combined MPG
0 0
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

Base (8 styles)

Style
2WD Double Cab 162" 4WD Double Cab 162" 4WD Crew Cab 159" 2WD Crew Cab 172" 2WD Crew Cab 159" 4WD Crew Cab 172" 2WD Reg Cab 142" 4WD Reg Cab 142"
Inventory price
Starting at $39,800 Starting at $42,600 Starting at $44,200 Starting at $41,600 Starting at $41,400 Starting at $44,400 Starting at $37,000 Starting at $39,800
Combined MPG
0 0 0 0 0 0 0 0
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

Denali (2 styles)

Style
4WD Crew Cab 172" Denali 4WD Crew Cab 159" Denali
Inventory price
Starting at $65,700 Starting at $65,500
Combined MPG
0 0
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

SLE (8 styles)

Style
4WD Reg Cab 142" SLE 2WD Reg Cab 142" SLE 4WD Double Cab 162" SLE 2WD Double Cab 162" SLE 4WD Crew Cab 172" SLE 2WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE 2WD Crew Cab 159" SLE
Inventory price
Starting at $44,400 Starting at $41,600 Starting at $46,600 Starting at $43,800 Starting at $48,400 Starting at $45,600 Starting at $48,200 Starting at $45,400
Combined MPG
0 0 0 0 0 0 0 0
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

SLT (4 styles)

Style
2WD Crew Cab 172" SLT 4WD Crew Cab 172" SLT 4WD Crew Cab 159" SLT 2WD Crew Cab 159" SLT
Inventory price
Starting at $54,200 Starting at $57,000 Starting at $56,800 Starting at $54,000
Combined MPG
0 0 0 0
Engine
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
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