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  • White Frost Tri-Coat 2021 GMC Sierra 2500 Denali

    $59,219

    $3K
    22,387 mi.
    Est. $1,093/mo

    Ewing Buick GMC

    4.6
    Check Availability
    Plano, TX (13 mi)

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  • Pacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 DenaliPacific Blue Metallic 2021 GMC Sierra 2500 Denali

    $38,477

    $2.3K
    180,824 mi.
    Est. $710/mo

    McKinney Buick GMC

    4.1
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    McKinney, TX (10 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

    $66,608

    $5K
    22,201 mi.
    Est. $1,229/mo

    Auto Web Expo

    4.6
    Check Availability
    Plano, TX (14 mi)
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  • Summit White 2021 GMC Sierra 2500 SLESummit White 2021 GMC Sierra 2500 SLESummit White 2021 GMC Sierra 2500 SLESummit White 2021 GMC Sierra 2500 SLESummit White 2021 GMC Sierra 2500 SLESummit White 2021 GMC Sierra 2500 SLE

    $35,384

    113,354 mi.
    Est. $653/mo

    Graff Chevrolet

    4.3
    Check Availability
    Grand Prairie, TX (29 mi)
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  • Summit White 2021 GMC Sierra 2500 BaseSummit White 2021 GMC Sierra 2500 BaseSummit White 2021 GMC Sierra 2500 BaseSummit White 2021 GMC Sierra 2500 BaseSummit White 2021 GMC Sierra 2500 BaseSummit White 2021 GMC Sierra 2500 Base

    $27,890

    132,531 mi.
    Est. $515/mo

    Dallas Cars of Texas

    4.4
    Check Availability
    Dallas, TX (18 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 Denali

    $58,993

    $5.1K
    37,201 mi.
    Est. $1,089/mo

    Richardson Chrysler Jeep Dodge Ram

    4.6
    Check Availability
    Richardson, TX (8 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 2500 Denali

    $56,582

    70,293 mi.
    Est. $1,044/mo

    Ride N Drive

    4.3
    Check Availability
    McKinney, TX (13 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

    $62,215

    39,267 mi.
    Est. $1,148/mo

    Lifted Trucks - Garland

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    Garland, TX (11 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

    Not Priced

    108,900 mi.
    Est. $0/mo

    McKinney Buick GMC

    4.1
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    McKinney, TX (10 mi)
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  • $29,950

    99,385 mi.
    Est. $553/mo

    Stonebriar Chevrolet

    4.1
    Check Availability
    Frisco, TX (12 mi)
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  • Summit White 2021 GMC Sierra 2500 SLTSummit White 2021 GMC Sierra 2500 SLTSummit White 2021 GMC Sierra 2500 SLTSummit White 2021 GMC Sierra 2500 SLTSummit White 2021 GMC Sierra 2500 SLTSummit White 2021 GMC Sierra 2500 SLT

    $35,995

    150,489 mi.
    Est. $664/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,077 delivery from Collinsville, IL (539 mi)
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  • Hunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 DenaliHunter Metallic 2021 GMC Sierra 2500 Denali

    $62,693

    35,853 mi.
    Est. $1,157/mo

    Weatherford Honda

    4.8
    Check Availability
    $299 delivery from Weatherford, TX (73 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

    $45,955

    147,934 mi.
    Est. $848/mo

    McDavid Ford

    4.6
    Check Availability
    Fort Worth, TX (54 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

    $51,449

    $537
    100,969 mi.
    Est. $950/mo

    VanGuard GMC

    4.9
    Check Availability
    Sherman, TX (46 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

    3.1
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    Keller, TX (38 mi)
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  • Onyx Black 2021 GMC Sierra 2500 SLTOnyx Black 2021 GMC Sierra 2500 SLTOnyx Black 2021 GMC Sierra 2500 SLTOnyx Black 2021 GMC Sierra 2500 SLTOnyx Black 2021 GMC Sierra 2500 SLTOnyx Black 2021 GMC Sierra 2500 SLT

    $46,995

    99,488 mi.
    Est. $867/mo

    Dow Autoplex

    3.5
    Check Availability
    Mineola, TX (71 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $83,549 5 Great deals
2025 GMC Sierra 2500 $78,553 14 Good deals
2024 GMC Sierra 2500 $69,221 10 Great 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 $51,313, with pricing starting at $3,500.

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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