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  • White Frost Tri-Coat 2021 GMC Sierra 2500 Denali

    $61,219

    22,387 mi.
    Est. $1,130/mo

    Ewing Buick GMC

    4.5
    Check Availability
    Plano, TX (17 mi)

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  • Cayenne Red Tintcoat 2021 GMC Sierra 2500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 2500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 2500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 2500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 2500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 2500 AT4

    $38,752

    $3.7K
    156,498 mi.
    Est. $715/mo

    Tom Clark Buick GMC

    4.8
    Check Availability
    Denton, TX (21 mi)
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  • Summit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali UltimateSummit White 2021 GMC Sierra 2500 Denali Ultimate

    $69,608

    22,201 mi.
    Est. $1,285/mo

    Auto Web Expo

    4.6
    Check Availability
    Plano, TX (14 mi)
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  • White Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 DenaliWhite Frost Tri-Coat 2021 GMC Sierra 2500 Denali

    $64,877

    $500
    31,442 mi.
    Est. $1,197/mo

    Huffines Chevrolet Lewisville

    4.9
    Check Availability
    Lewisville, TX (9 mi)
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  • Onyx Black 2021 GMC Sierra 2500 AT4Onyx Black 2021 GMC Sierra 2500 AT4Onyx Black 2021 GMC Sierra 2500 AT4Onyx Black 2021 GMC Sierra 2500 AT4Onyx Black 2021 GMC Sierra 2500 AT4Onyx Black 2021 GMC Sierra 2500 AT4

    $52,978

    108,056 mi.
    Est. $978/mo

    Auto Capital Investments

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    Denton, TX (19 mi)
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  • White Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 Denali

    $51,216

    110,966 mi.
    Est. $945/mo

    Sewell Buick GMC of Dallas

    3.8
    Check Availability
    Dallas, TX (16 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 2500 SLTCayenne Red Tintcoat 2021 GMC Sierra 2500 SLTCayenne Red Tintcoat 2021 GMC Sierra 2500 SLTCayenne Red Tintcoat 2021 GMC Sierra 2500 SLTCayenne Red Tintcoat 2021 GMC Sierra 2500 SLTCayenne Red Tintcoat 2021 GMC Sierra 2500 SLT

    $63,215

    $2K
    39,267 mi.
    Est. $1,167/mo

    Lifted Trucks - Garland

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    Garland, TX (24 mi)
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  • Blue 2021 GMC Sierra 2500 SLTBlue 2021 GMC Sierra 2500 SLTBlue 2021 GMC Sierra 2500 SLTBlue 2021 GMC Sierra 2500 SLTBlue 2021 GMC Sierra 2500 SLTBlue 2021 GMC Sierra 2500 SLT

    $41,200

    97,218 mi.
    Est. $760/mo

    Callahan Motor Company

    3.2
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    Keller, TX (11 mi)
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  • Not Priced

    70,179 mi.

    LoneStar Mitsubishi

    4.2
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    White Settlement, TX (26 mi)
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  • White 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 DenaliWhite 2021 GMC Sierra 2500 Denali

    $54,998

    92,464 mi.
    Est. $1,015/mo

    CarMax Baton Rouge

    Check Availability
    $99 delivery to Irving, TX (13 mi)
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  • Onyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 DenaliOnyx Black 2021 GMC Sierra 2500 Denali

    $49,995

    107,468 mi.
    Est. $923/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,122 delivery from Collinsville, IL (562 mi)
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  • White Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 DenaliWhite Frost Tricoat 2021 GMC Sierra 2500 Denali

    $56,720

    78,717 mi.
    Est. $1,047/mo

    Bob Tomes Ford

    4.8
    Check Availability
    McKinney, TX (31 mi)
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  • Black 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 DenaliBlack 2021 GMC Sierra 2500 Denali

    $53,000

    105,000 mi.
    Est. $978/mo

    Private seller: Don

    Contact Seller
    New Hope, TX (34 mi)
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  • $36,977

    179,379 mi.
    Est. $682/mo

    Lipscomb Auto Center

    4.9
    Check Availability
    Bowie, TX (66 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $81,829 8 Good deals
2025 GMC Sierra 2500 $77,860 8 Great deals
2024 GMC Sierra 2500 $70,882 20 Great deals
2023 GMC Sierra 2500 $52,296 2 Good deals
2022 GMC Sierra 2500 $52,405 11 Good deals
2020 GMC Sierra 2500 $49,650 3 Good deals

About the 2021 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 2021 GMC Sierra 2500
FAQs

How much does the 2021 GMC Sierra 2500 cost?

The 2021 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 2021 Sierra 2500 is $52,307, with pricing starting at $22,900.

What are some similar vehicles and competitors of the 2021 GMC Sierra 2500?

The 2021 GMC Sierra 2500 compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 2500 reliable?

The 2021 GMC Sierra 2500 has an average reliability rating of 4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 2500 owners.

Is the 2021 GMC Sierra 2500 a good truck?

Below are the Cars.com consumer ratings for the 2021 GMC Sierra 2500.

(29 reviews)
Rating breakdown (out of 5):
Comfort
4.7
Interior
4.6
Performance
4.3
Value
3.9
Exterior
4.6
Reliability
4.0
Ratings (29 reviews)

75% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.7
Interior
4.6
Performance
4.3
Value
3.9
Exterior
4.6
Reliability
4.0
Trims

AT4 (2 styles)

Style
4WD Crew Cab 172" AT4 4WD Crew Cab 159" AT4
Inventory price
Starting at $59,300 Starting at $59,100
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 Crew Cab 159" 2WD Crew Cab 172" 4WD Crew Cab 172" 2WD Crew Cab 159" 2WD Double Cab 162" 4WD Double Cab 162" 4WD Double Cab 149" 2WD Double Cab 149" 2WD Reg Cab 142" 4WD Reg Cab 142"
Inventory price
Starting at $43,400 Starting at $40,800 Starting at $43,600 Starting at $40,600 Starting at $39,000 Starting at $41,800 Starting at $41,600 Starting at $38,800 Starting at $36,200 Starting at $39,000
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 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 (10 styles)

Style
4WD Reg Cab 142" SLE 2WD Reg Cab 142" SLE 2WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE 2WD Crew Cab 159" SLE 4WD Crew Cab 172" SLE 2WD Double Cab 162" SLE 2WD Double Cab 149" SLE 4WD Double Cab 149" SLE 4WD Double Cab 162" SLE
Inventory price
Starting at $44,400 Starting at $41,600 Starting at $45,600 Starting at $48,200 Starting at $45,400 Starting at $48,400 Starting at $43,800 Starting at $43,600 Starting at $46,400 Starting at $46,600
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
4WD Double Cab 162" SLT 2WD Double Cab 149" SLT 2WD Double Cab 162" SLT 4WD Double Cab 149" SLT 4WD Crew Cab 159" SLT 2WD Crew Cab 159" SLT 2WD Crew Cab 172" SLT 4WD Crew Cab 172" SLT
Inventory price
Starting at $54,600 Starting at $51,600 Starting at $51,800 Starting at $54,400 Starting at $56,200 Starting at $53,400 Starting at $53,600 Starting at $56,400
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)
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