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
  • Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4

    $53,598

    84,490 mi.
    Est. $999/mo

    Liberty Buick

    4.8
    Check Availability
    Peoria, AZ (6 mi)
    Quick view
  • 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

    $47,093

    $2.1K
    110,539 mi.
    Est. $878/mo

    Larry H. Miller Dodge Ram Avondale

    Check Availability
    Avondale, AZ (10 mi)
    Quick view
  • 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

    $61,993

    $459
    39,614 mi.
    Est. $1,155/mo

    Scottsdale Mitsubishi

    3.9
    Check Availability
    Scottsdale, AZ (27 mi)
    Quick view
  • Pacific Blue Metallic 2021 GMC Sierra 2500 AT4Pacific Blue Metallic 2021 GMC Sierra 2500 AT4Pacific Blue Metallic 2021 GMC Sierra 2500 AT4Pacific Blue Metallic 2021 GMC Sierra 2500 AT4Pacific Blue Metallic 2021 GMC Sierra 2500 AT4Pacific Blue Metallic 2021 GMC Sierra 2500 AT4

    $52,641

    72,316 mi.
    Est. $981/mo

    101 AUTO OUTLET

    4.0
    Check Availability
    Scottsdale, AZ (15 mi)
    Quick view
  • 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

    $59,393

    63,477 mi.
    Est. $1,107/mo

    Ken Garff Hyundai Surprise

    3.5
    Check Availability
    Surprise, AZ (6 mi)
    Quick view
  • Quicksilver Metallic 2021 GMC Sierra 2500 SLEQuicksilver Metallic 2021 GMC Sierra 2500 SLEQuicksilver Metallic 2021 GMC Sierra 2500 SLEQuicksilver Metallic 2021 GMC Sierra 2500 SLEQuicksilver Metallic 2021 GMC Sierra 2500 SLEQuicksilver Metallic 2021 GMC Sierra 2500 SLE

    $39,950

    96,600 mi.
    Est. $744/mo

    Goldies Motors

    3.3
    Check Availability
    Mesa, AZ (22 mi)
    Quick view
  • 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

    $56,229

    $1.3K
    60,597 mi.
    Est. $1,048/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (6 mi)
    Quick view
  • Quicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 DenaliQuicksilver Metallic 2021 GMC Sierra 2500 Denali

    $78,240

    21,499 mi.
    Est. $1,458/mo

    Lifted Trucks - Scottsdale

    Check Availability
    Scottsdale, AZ (25 mi)
    Quick view
  • Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4

    $60,790

    54,522 mi.
    Est. $1,133/mo

    Yates Buick GMC

    3.3
    Check Availability
    Goodyear, AZ (10 mi)
    Quick view
  • $59,886

    54,203 mi.
    Est. $1,116/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (26 mi)
    Quick view
  • 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

    $45,586

    112,056 mi.
    Est. $849/mo

    Extreme Chrysler Dodge Jeep RAM

    4.6
    Check Availability
    $2,442 delivery from Jackson, MI (1628 mi)
    Quick view
  • Black 2021 GMC Sierra 2500 AT4Black 2021 GMC Sierra 2500 AT4Black 2021 GMC Sierra 2500 AT4Black 2021 GMC Sierra 2500 AT4Black 2021 GMC Sierra 2500 AT4Black 2021 GMC Sierra 2500 AT4

    $60,998

    42,666 mi.
    Est. $1,137/mo

    CarMax Potomac Mills

    Check Availability
    $1,699 delivery to Tolleson, AZ (10 mi)
    Quick view
  • 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

    $41,000

    $1.7K
    102,749 mi.
    Est. $764/mo

    Silo Auto Sales

    Check Availability
    Gilbert, AZ (39 mi)
    Quick view
  • 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

    $54,842

    88,846 mi.
    Est. $1,022/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (39 mi)
    Quick view
  • 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

    $56,559

    74,176 mi.
    Est. $1,054/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (39 mi)
    Quick view
  • Ebony Twilight Metallic 2021 GMC Sierra 2500 Denali UltimateEbony Twilight Metallic 2021 GMC Sierra 2500 Denali UltimateEbony Twilight Metallic 2021 GMC Sierra 2500 Denali UltimateEbony Twilight Metallic 2021 GMC Sierra 2500 Denali UltimateEbony Twilight Metallic 2021 GMC Sierra 2500 Denali UltimateEbony Twilight Metallic 2021 GMC Sierra 2500 Denali Ultimate

    $59,988

    $512
    49,352 mi.
    Est. $1,118/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (34 mi)
    Quick view
  • 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

    $59,689

    89,091 mi.
    Est. $1,112/mo

    Lifted Trucks - Mesa

    Check Availability
    Mesa, AZ (33 mi)
    Quick view
  • White Frost Tricoat 2021 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2021 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2021 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2021 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2021 GMC Sierra 2500 Denali UltimateWhite Frost Tricoat 2021 GMC Sierra 2500 Denali Ultimate

    $59,988

    $1K
    62,780 mi.
    Est. $1,118/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (34 mi)
    Quick view
  • 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

    $61,099

    52,748 mi.
    Est. $1,139/mo

    Audi Gilbert

    4.7
    Check Availability
    Gilbert, AZ (38 mi)
    Quick view
  • Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4Summit White 2021 GMC Sierra 2500 AT4

    $52,900

    74,537 mi.
    Est. $986/mo

    Carz R Us LLC

    3.0
    Check Availability
    Mesa, AZ (43 mi)
    Quick view

GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $79,077 1 Good deal
2025 GMC Sierra 2500 $77,306 6 Good deals
2024 GMC Sierra 2500 $74,688 5 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 $51,894, with pricing starting at $22,900.

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)
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