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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

    $51,313

    $100
    69,265 mi.
    Est. $911/mo

    Al Piemonte Buick GMC

    4.5
    Elmhurst, IL (17 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

    $57,340

    58,980 mi.
    Est. $1,018/mo

    Luther Burnsville Hyundai

    4.5
    Burnsville, MN (346 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. $886/mo

    Kernersville Chrysler Dodge Jeep RAM

    4.2
    Kernersville, NC (570 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

    $65,799

    55,055 mi.
    Est. $1,168/mo

    Stevenson-Hendrick Honda Wilmington

    5.0
    Wilmington, NC (749 mi)
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  • Summit White 2020 GMC Sierra 3500 SLESummit White 2020 GMC Sierra 3500 SLESummit White 2020 GMC Sierra 3500 SLESummit White 2020 GMC Sierra 3500 SLESummit White 2020 GMC Sierra 3500 SLESummit White 2020 GMC Sierra 3500 SLE

    $36,253

    86,708 mi.
    Est. $644/mo

    Pryor Chevrolet Gmc

    4.7
    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

    $31,988

    134,035 mi.
    Est. $568/mo

    Mac Haik Ford Lincoln

    4.7
    Georgetown, TX (960 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

    $57,403

    $3K
    58,188 mi.
    Est. $1,019/mo

    Murgado Ford of Chicago

    4.2
    Chicago, IL (4 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

    $53,223

    77,029 mi.
    Est. $945/mo

    Ken Garff West Valley Chrysler Jeep Dodge Ram Fiat

    4.3
    West Valley City, UT (1,263 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

    $41,629

    157,567 mi.
    Est. $739/mo

    Rairdon's Honda of Sumner

    4.5
    Sumner, 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

    $49,681

    91,553 mi.
    Est. $882/mo

    Smedley's Chevrolet

    4.6
    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

    $83,432

    21,336 mi.
    Est. $1,481/mo

    Zeigler Honda of Racine

    4.6
    Mt Pleasant, WI (60 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

    $52,745

    68,661 mi.
    Est. $937/mo

    Fort Collins Dodge, Chrysler, Jeep, RAM

    4.9
    Fort Collins, CO (910 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 3500 AT4Carbon Black Metallic 2020 GMC Sierra 3500 AT4Carbon Black Metallic 2020 GMC Sierra 3500 AT4Carbon Black Metallic 2020 GMC Sierra 3500 AT4Carbon Black Metallic 2020 GMC Sierra 3500 AT4Carbon Black Metallic 2020 GMC Sierra 3500 AT4

    $45,900

    $2K
    109,366 mi.
    Est. $815/mo

    Classic of Cleburne Chevrolet/Buick/GMC

    4.9
    Cleburne, TX (851 mi)
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  • Red 2020 GMC Sierra 3500 AT4Red 2020 GMC Sierra 3500 AT4Red 2020 GMC Sierra 3500 AT4Red 2020 GMC Sierra 3500 AT4Red 2020 GMC Sierra 3500 AT4Red 2020 GMC Sierra 3500 AT4

    $51,597

    94,114 mi.
    Est. $916/mo

    Yoder Chevrolet

    4.3
    Fort Lupton, CO (903 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

    $43,495

    $500
    122,558 mi.
    Est. $772/mo

    Auto Boutique Jacksonville

    4.5
    Jacksonville, FL (870 mi)
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  • Black 2020 GMC Sierra 3500 AT4Black 2020 GMC Sierra 3500 AT4Black 2020 GMC Sierra 3500 AT4Black 2020 GMC Sierra 3500 AT4Black 2020 GMC Sierra 3500 AT4Black 2020 GMC Sierra 3500 AT4

    $45,509

    125,528 mi.
    Est. $808/mo

    Larry H. Miller Ford Draper

    4.0
    Draper, UT (1,261 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

    $57,989

    91,470 mi.
    Est. $1,030/mo

    David Scott Lee Buick GMC

    4.7
    Crestview, FL (774 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

    $62,917

    34,689 mi.
    Est. $1,117/mo

    Newton Chevrolet Buick of Russellville

    4.9
    Russellville, KY (351 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

    $59,177

    36,216 mi.
    Est. $1,051/mo

    Rairdons Honda of Burien

    4.6
    Burien, WA (1,733 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

    $55,698

    113,062 mi.
    Est. $989/mo

    Susan Schein Automotive

    Pelham, AL (596 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

    $54,194

    78,421 mi.
    Est. $962/mo

    Sundance Chevrolet

    4.6
    Grand Ledge, MI (161 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

    $61,844

    $100
    68,855 mi.
    Est. $1,098/mo

    44 Auto Mart - Elizabethtown

    4.4
    Elizabethtown, KY (304 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

    $46,219

    $726
    111,721 mi.
    Est. $821/mo

    VanGuard GMC

    4.9
    Sherman, TX (749 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 3500 SLTPacific Blue Metallic 2020 GMC Sierra 3500 SLTPacific Blue Metallic 2020 GMC Sierra 3500 SLTPacific Blue Metallic 2020 GMC Sierra 3500 SLTPacific Blue Metallic 2020 GMC Sierra 3500 SLTPacific Blue Metallic 2020 GMC Sierra 3500 SLT

    $42,995

    117,948 mi.
    Est. $763/mo

    Tadd Jenkins Chevrolet

    4.4
    Rigby, ID (1,233 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

    $58,998

    49,149 mi.
    Est. $1,048/mo

    CarMax Tulsa

    4.6
    Tulsa, OK (600 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

    $44,900

    $500
    127,897 mi.
    Est. $797/mo

    Bud Weiser Motors

    4.7
    Beloit, WI (83 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

    $50,373

    $200
    100,129 mi.
    Est. $894/mo

    Anderson of Hunt Valley

    4.9
    Cockeysville, MD (600 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 $83,610 13 Great deals
2025 GMC Sierra 3500 $74,052 53 Great deals
2024 GMC Sierra 3500 $69,561 110 Great deals
2023 GMC Sierra 3500 $56,686 31 Great deals
2022 GMC Sierra 3500 $55,887 49 Great deals
2021 GMC Sierra 3500 $52,124 17 Great deals
2019 GMC Sierra 3500 $42,245 13 Great deals
2018 GMC Sierra 3500 $43,114 13 Great deals
2017 GMC Sierra 3500 $39,387 7 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 $50,558, with pricing starting at $16,479.

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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