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  • Red Quartz Tintcoat 2020 GMC Sierra 2500 AT4Red Quartz Tintcoat 2020 GMC Sierra 2500 AT4Red Quartz Tintcoat 2020 GMC Sierra 2500 AT4Red Quartz Tintcoat 2020 GMC Sierra 2500 AT4Red Quartz Tintcoat 2020 GMC Sierra 2500 AT4Red Quartz Tintcoat 2020 GMC Sierra 2500 AT4

    $63,999

    33,103 mi.
    Est. $1,179/mo

    AutoNation Toyota Arapahoe

    4.8
    Check Availability
    Centennial, CO (1 mi)

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  • Dark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 DenaliDark Sky Metallic 2020 GMC Sierra 2500 Denali

    $55,690

    $1K
    43,002 mi.
    Est. $1,026/mo

    AutoNation Chrysler Jeep West

    4.6
    Check Availability
    Golden, CO (19 mi)
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  • Summit White 2020 GMC Sierra 2500 BaseSummit White 2020 GMC Sierra 2500 BaseSummit White 2020 GMC Sierra 2500 BaseSummit White 2020 GMC Sierra 2500 BaseSummit White 2020 GMC Sierra 2500 BaseSummit White 2020 GMC Sierra 2500 Base

    $29,697

    94,498 mi.
    Est. $547/mo

    EchoPark Automotive Thornton

    4.8
    Check Availability
    Thornton, CO (22 mi)
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  • White 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 Denali

    $49,995

    106,529 mi.
    Est. $921/mo

    Truck Kings

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    Denver, CO (12 mi)
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  • Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4

    $41,598

    $800
    127,044 mi.
    Est. $766/mo

    AutoNation Subaru Arapahoe

    4.4
    Check Availability
    Centennial, CO (1 mi)
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  • Onyx Black 2020 GMC Sierra 2500 AT4Onyx Black 2020 GMC Sierra 2500 AT4Onyx Black 2020 GMC Sierra 2500 AT4Onyx Black 2020 GMC Sierra 2500 AT4Onyx Black 2020 GMC Sierra 2500 AT4Onyx Black 2020 GMC Sierra 2500 AT4

    $48,800

    $300
    119,819 mi.
    Est. $899/mo

    Stevinson Toyota West

    4.3
    Check Availability
    Lakewood, CO (18 mi)
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  • Onyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 DenaliOnyx Black 2020 GMC Sierra 2500 Denali

    $51,499

    92,204 mi.
    Est. $949/mo

    Alpine Buick GMC

    4.4
    Check Availability
    Littleton, CO (12 mi)
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  • White 2020 GMC Sierra 2500 AT4White 2020 GMC Sierra 2500 AT4White 2020 GMC Sierra 2500 AT4White 2020 GMC Sierra 2500 AT4White 2020 GMC Sierra 2500 AT4White 2020 GMC Sierra 2500 AT4

    $53,995

    96,140 mi.
    Est. $995/mo

    Nice Auto Sales

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    Denver, CO (12 mi)
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  • Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4Summit White 2020 GMC Sierra 2500 AT4

    $44,181

    $447
    134,979 mi.
    Est. $814/mo

    Castle Rock Ford

    3.3
    Check Availability
    Castle Rock, CO (17 mi)
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  • $51,991

    99,732 mi.
    Est. $958/mo

    Prestige Audi

    3.4
    Check Availability
    Lakewood, CO (16 mi)
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  • Summit White 2020 GMC Sierra 2500 SLESummit White 2020 GMC Sierra 2500 SLESummit White 2020 GMC Sierra 2500 SLESummit White 2020 GMC Sierra 2500 SLESummit White 2020 GMC Sierra 2500 SLESummit White 2020 GMC Sierra 2500 SLE

    $42,999

    69,171 mi.
    Est. $792/mo

    Truck Solution NM

    Check Availability
    $478 delivery from Albuquerque, NM (319 mi)
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  • Summit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 DenaliSummit White 2020 GMC Sierra 2500 Denali

    $62,995

    31,779 mi.
    Est. $1,160/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,596 delivery from Collinsville, IL (799 mi)
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  • White 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 DenaliWhite 2020 GMC Sierra 2500 Denali

    $46,995

    108,000 mi.
    Est. $866/mo

    Discovery Auto Group

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    Grand Junction, CO (202 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 DenaliCarbon Black Metallic 2020 GMC Sierra 2500 Denali

    $56,971

    61,052 mi.
    Est. $1,049/mo

    Markley Honda

    4.7
    Check Availability
    Fort Collins, CO (67 mi)
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  • Onyx Black 2020 GMC Sierra 2500 SLEOnyx Black 2020 GMC Sierra 2500 SLEOnyx Black 2020 GMC Sierra 2500 SLEOnyx Black 2020 GMC Sierra 2500 SLEOnyx Black 2020 GMC Sierra 2500 SLEOnyx Black 2020 GMC Sierra 2500 SLE

    $43,499

    $496
    100,699 mi.
    Est. $801/mo

    Phil Long Ford of Chapel Hills

    4.5
    Check Availability
    Colorado Springs, CO (45 mi)
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  • Summit White 2020 GMC Sierra 2500 SLTSummit White 2020 GMC Sierra 2500 SLTSummit White 2020 GMC Sierra 2500 SLTSummit White 2020 GMC Sierra 2500 SLTSummit White 2020 GMC Sierra 2500 SLTSummit White 2020 GMC Sierra 2500 SLT

    $40,848

    142,940 mi.
    Est. $752/mo

    Kissner Motors

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    Grand Junction, CO (201 mi)
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  • $58,995

    62,653 mi.
    Est. $1,087/mo

    Carville's Auto Mart

    4.7
    Check Availability
    Grand Junction, CO (202 mi)
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  • $45,399

    $1K
    137,631 mi.
    Est. $836/mo

    Carville's Auto Mart

    4.7
    Check Availability
    Grand Junction, CO (202 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $81,906 4 Good deals
2025 GMC Sierra 2500 $75,640 6 Good deals
2024 GMC Sierra 2500 $68,139 20 Good deals

About the 2020 GMC Sierra 2500

Basics

Base shown (base trim).

Seating
3
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 2500
FAQs

How much does the 2020 GMC Sierra 2500 cost?

The 2020 GMC Sierra 2500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 2500 is $50,673, with pricing starting at $4,000.

Is the 2020 GMC Sierra 2500 reliable?

The 2020 GMC Sierra 2500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 2500 owners.

Is the 2020 GMC Sierra 2500 a good truck?

Below are the Cars.com consumer ratings for the 2020 GMC Sierra 2500.

(23 reviews)
Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
4.8
Value
4.5
Exterior
4.9
Reliability
4.7
Ratings (23 reviews)

91% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.9
Performance
4.8
Value
4.5
Exterior
4.9
Reliability
4.7
Trims

AT4 (2 styles)

Style
4WD Crew Cab 172" AT4 4WD Crew Cab 159" AT4
Inventory price
Starting at $58,500 Starting at $58,300
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 (10 styles)

Style
4WD Double Cab 162" 4WD Crew Cab 159" 2WD Crew Cab 172" 4WD Double Cab 149" 4WD Crew Cab 172" 2WD Double Cab 162" 2WD Crew Cab 159" 2WD Double Cab 149" 4WD Reg Cab 142" 2WD Reg Cab 142"
Inventory price
Starting at $41,400 Starting at $43,000 Starting at $40,400 Starting at $41,200 Starting at $43,200 Starting at $38,600 Starting at $40,200 Starting at $38,400 Starting at $38,600 Starting at $35,800
Combined MPG
0 0 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) 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 159" Denali 4WD Crew Cab 172" Denali
Inventory price
Starting at $64,300 Starting at $64,500
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 (10 styles)

Style
4WD Reg Cab 142" SLE 2WD Reg Cab 142" SLE 2WD Crew Cab 172" SLE 2WD Crew Cab 159" SLE 4WD Double Cab 162" SLE 4WD Crew Cab 159" SLE 2WD Double Cab 162" SLE 4WD Double Cab 149" SLE 2WD Double Cab 149" SLE 4WD Crew Cab 172" SLE
Inventory price
Starting at $43,200 Starting at $40,400 Starting at $44,400 Starting at $44,200 Starting at $45,400 Starting at $47,000 Starting at $42,600 Starting at $45,200 Starting at $42,400 Starting at $47,200
Combined MPG
0 0 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) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

SLT (8 styles)

Style
2WD Double Cab 149" SLT 4WD Double Cab 149" SLT 4WD Crew Cab 172" SLT 4WD Double Cab 162" SLT 2WD Crew Cab 172" SLT 2WD Double Cab 162" SLT 2WD Crew Cab 159" SLT 4WD Crew Cab 159" SLT
Inventory price
Starting at $51,000 Starting at $53,800 Starting at $55,800 Starting at $54,000 Starting at $53,000 Starting at $51,200 Starting at $52,800 Starting at $55,600
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)
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