Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • 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

    $56,974

    49,029 mi.
    Est. $1,051/mo

    Vanguard Buick GMC of Carrollton

    3.7
    Check Availability
    Carrollton, TX (19 mi)

    Quick view
  • White Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2020 GMC Sierra 2500 Denali Ultimate

    $55,498

    52,090 mi.
    Est. $1,024/mo

    Toyota of Richardson

    4.7
    Check Availability
    Richardson, TX (8 mi)
    Quick view
  • Pacific Blue Metallic 2020 GMC Sierra 2500 AT4Pacific Blue Metallic 2020 GMC Sierra 2500 AT4Pacific Blue Metallic 2020 GMC Sierra 2500 AT4Pacific Blue Metallic 2020 GMC Sierra 2500 AT4Pacific Blue Metallic 2020 GMC Sierra 2500 AT4Pacific Blue Metallic 2020 GMC Sierra 2500 AT4

    $51,995

    86,307 mi.
    Est. $960/mo

    Carsandpickups.com of Dallas

    4.6
    Check Availability
    Addison, TX (14 mi)
    Quick view
  • 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

    $56,178

    $3.3K
    66,876 mi.
    Est. $1,037/mo

    Heritage Buick GMC

    4.6
    Check Availability
    Rockwall, TX (13 mi)
    Quick view
  • 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

    $52,677

    $2.3K
    61,697 mi.
    Est. $972/mo

    McKinney Buick GMC

    4.1
    Check Availability
    McKinney, TX (10 mi)
    Quick view
  • 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

    $45,800

    133,094 mi.
    Est. $845/mo

    McKinney Buick GMC

    4.1
    Check Availability
    McKinney, TX (10 mi)
    Quick view
  • 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

    $51,761

    $1.2K
    105,410 mi.
    Est. $955/mo

    Vanguard Buick GMC of Carrollton

    3.7
    Check Availability
    Carrollton, TX (19 mi)
    Quick view
  • 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

    $42,950

    39,066 mi.
    Est. $793/mo

    Prestige Auto Brokers

    Check Availability
    Grand Prairie, TX (27 mi)
    Quick view
  • $53,598

    105,652 mi.
    Est. $989/mo

    Karma DFW Plano

    Check Availability
    Plano, TX (9 mi)
    Quick view
  • $59,630

    $2.3K
    49,001 mi.
    Est. $1,100/mo

    Toyota of Plano

    4.7
    Check Availability
    Plano, TX (15 mi)
    Quick view
  • Carbon Black Metallic 2020 GMC Sierra 2500 AT4Carbon Black Metallic 2020 GMC Sierra 2500 AT4Carbon Black Metallic 2020 GMC Sierra 2500 AT4Carbon Black Metallic 2020 GMC Sierra 2500 AT4Carbon Black Metallic 2020 GMC Sierra 2500 AT4Carbon Black Metallic 2020 GMC Sierra 2500 AT4

    $46,995

    $2K
    104,435 mi.
    Est. $867/mo

    Unlimited Motors

    4.7
    Check Availability
    $1,166 delivery from Elwood, IN (778 mi)
    Quick view
  • 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. $1,163/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,077 delivery from Collinsville, IL (539 mi)
    Quick view
  • 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

    $36,995

    164,693 mi.
    Est. $683/mo

    Silver Star Motors

    Check Availability
    Midlothian, TX (44 mi)
    Quick view
  • 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

    $42,998

    81,870 mi.
    Est. $794/mo

    AutoNation Chrysler Dodge Jeep Ram North Fort Worth

    4.6
    Check Availability
    Fort Worth, TX (41 mi)
    Quick view
  • 2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali2020 GMC Sierra 2500 Denali

    $39,900

    94,727 mi.
    Est. $736/mo

    The Auto Kingdom Auto Sales

    Check Availability
    Kennedale, TX (44 mi)
    Quick view

GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $83,984 5 Great deals
2025 GMC Sierra 2500 $78,511 18 Good deals
2024 GMC Sierra 2500 $69,205 11 Great 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 $50,894, with pricing starting at $24,751.

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)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed