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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

    $63,200

    33,101 mi.
    Est. $1,164/mo

    AutoNation Toyota Arapahoe

    4.8
    Check Availability
    Centennial, CO (2 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

    $48,698

    106,571 mi.
    Est. $897/mo

    Foundation Chevrolet

    4.5
    Check Availability
    Wheat Ridge, CO (21 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 (13 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

    $54,576

    69,336 mi.
    Est. $1,005/mo

    AutoNation Dodge Ram Broadway

    4.4
    Check Availability
    Littleton, CO (8 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

    $51,306

    92,194 mi.
    Est. $945/mo

    Alpine Buick GMC

    4.4
    Check Availability
    Littleton, CO (13 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

    $56,488

    64,931 mi.
    Est. $1,041/mo

    Johnson Auto Plaza

    3.4
    Check Availability
    Brighton, CO (26 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

    $48,798

    134,979 mi.
    Est. $899/mo

    Castle Rock Ford

    3.4
    Check Availability
    Castle Rock, CO (15 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

    $47,571

    $1.3K
    113,384 mi.
    Est. $876/mo

    Auto Mart USA

    Check Availability
    Aurora, CO (9 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 2500 Denali

    $49,513

    112,887 mi.
    Est. $912/mo

    O'Meara GMC

    3.0
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    Thornton, CO (24 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

    $43,799

    127,044 mi.
    Est. $807/mo

    AutoNation Subaru Arapahoe

    4.4
    Check Availability
    Centennial, CO (2 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

    $56,200

    43,002 mi.
    Est. $1,035/mo

    AutoNation Chrysler Jeep West

    4.6
    Check Availability
    Golden, CO (21 mi)
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  • Red 2020 GMC Sierra 2500 DenaliRed 2020 GMC Sierra 2500 DenaliRed 2020 GMC Sierra 2500 DenaliRed 2020 GMC Sierra 2500 DenaliRed 2020 GMC Sierra 2500 DenaliRed 2020 GMC Sierra 2500 Denali

    $57,998

    42,211 mi.
    Est. $1,068/mo

    CarMax Schaumburg

    4.5
    Check Availability
    $499 delivery to Parker, CO (5 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

    $52,995

    $1K
    80,313 mi.
    Est. $976/mo

    Laura Buick GMC

    4.6
    Check Availability
    $1,594 delivery from Collinsville, IL (798 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

    $31,497

    $490
    94,498 mi.
    Est. $580/mo

    EchoPark Automotive Colorado Springs

    4.8
    Check Availability
    Colorado Springs, CO (44 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

    $42,995

    100,699 mi.
    Est. $792/mo

    Phil Long Ford of Chapel Hills

    4.5
    Check Availability
    Colorado Springs, CO (43 mi)
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  • $50,995

    107,468 mi.
    Est. $939/mo

    Alpine Ford

    4.3
    Check Availability
    Pueblo, CO (88 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $79,693 1 Good deal
2025 GMC Sierra 2500 $72,720 4 Good deals
2024 GMC Sierra 2500 $65,836 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 $49,114, with pricing starting at $23,777.

What are some similar vehicles and competitors of the 2020 GMC Sierra 2500?

The 2020 GMC Sierra 2500 compares to and/or competes against the following vehicles:


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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