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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

    $53,226

    $1.8K
    75,981 mi.
    Est. $1,000/mo

    Circle Buick GMC

    3.4
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    Highland, IN (26 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

    $58,992

    43,624 mi.
    Est. $1,109/mo

    Southern Acura Newport News

    4.9
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    Newport News, VA (678 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

    $59,341

    59,949 mi.
    Est. $1,115/mo

    Iron Trail Chevrolet

    2.6
    Check Availability
    Virginia, MN (458 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 2500 BaseQuicksilver Metallic 2021 GMC Sierra 2500 BaseQuicksilver Metallic 2021 GMC Sierra 2500 BaseQuicksilver Metallic 2021 GMC Sierra 2500 BaseQuicksilver Metallic 2021 GMC Sierra 2500 BaseQuicksilver Metallic 2021 GMC Sierra 2500 Base

    $39,000

    69,870 mi.
    Est. $733/mo

    Corwin Toyota Colorado Springs

    4.5
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    Colorado Springs, CO (921 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4

    $60,246

    $2.2K
    47,875 mi.
    Est. $1,132/mo

    AutoNation Toyota Weston

    4.7
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    Davie, FL (1,169 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4

    $47,263

    $1K
    98,090 mi.
    Est. $888/mo

    Garber Chevrolet Midland

    4.9
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    Midland, MI (211 mi)
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  • 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

    $55,800

    88,572 mi.
    Est. $1,049/mo

    Southern Buick GMC Greenbrier

    4.0
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    Chesapeake, VA (703 mi)
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  • White 2021 GMC Sierra 2500 SLTWhite 2021 GMC Sierra 2500 SLTWhite 2021 GMC Sierra 2500 SLTWhite 2021 GMC Sierra 2500 SLTWhite 2021 GMC Sierra 2500 SLTWhite 2021 GMC Sierra 2500 SLT

    $51,292

    $299
    54,504 mi.
    Est. $964/mo

    Weld County Garage GMC Hummer

    4.5
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    Greeley, CO (896 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

    156,498 mi.
    Est. $728/mo

    Tom Clark Buick GMC

    4.8
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    Denton, TX (794 mi)
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  • White 2021 GMC Sierra 2500 SLEWhite 2021 GMC Sierra 2500 SLEWhite 2021 GMC Sierra 2500 SLEWhite 2021 GMC Sierra 2500 SLEWhite 2021 GMC Sierra 2500 SLEWhite 2021 GMC Sierra 2500 SLE

    $46,900

    39,392 mi.
    Est. $882/mo

    Suburban Ford of Sterling Heights

    4.6
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    Sterling Heights, MI (241 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 Denali

    $54,750

    98,503 mi.
    Est. $1,029/mo

    Show Me Auto Mall

    4.8
    Check Availability
    Harrisonville, MO (419 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

    $56,195

    54,922 mi.
    Est. $1,056/mo

    Lakeside Chevrolet of Warsaw

    4.3
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    Warsaw, IN (102 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLE

    $43,486

    69,874 mi.
    Est. $817/mo

    Summit Automotive Chrysler Dodge Jeep RAM

    4.7
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    Fond Du Lac, WI (137 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 Denali

    $48,999

    $1.9K
    95,014 mi.
    Est. $921/mo

    Russ Darrow Kia of Wauwatosa

    4.3
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    Wauwatosa, WI (84 mi)

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  • 2021 GMC Sierra 2500 Denali2021 GMC Sierra 2500 Denali2021 GMC Sierra 2500 Denali2021 GMC Sierra 2500 Denali2021 GMC Sierra 2500 Denali2021 GMC Sierra 2500 Denali

    $66,219

    17,488 mi.
    Est. $1,245/mo

    Emmons Autoplex

    4.5
    Check Availability
    Webster, TX (951 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4Ebony Twilight Metallic 2021 GMC Sierra 2500 AT4

    $57,995

    85,662 mi.
    Est. $1,090/mo

    All American Chevrolet Of Midland

    4.5
    Check Availability
    Midland, TX (1,051 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

    $51,156

    $1.2K
    82,982 mi.
    Est. $962/mo

    McDonald GMC Cadillac

    4.9
    Check Availability
    Saginaw, MI (213 mi)
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  • 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

    $65,483

    $499
    36,095 mi.
    Est. $1,231/mo

    Findlay Nissan Henderson

    4.6
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    Henderson, NV (1,519 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

    $55,406

    $129
    72,704 mi.
    Est. $1,041/mo

    Ron Tonkin Kia

    4.6
    Check Availability
    Gladstone, OR (1,752 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLEPacific Blue Metallic 2021 GMC Sierra 2500 SLE

    $42,282

    $210
    59,190 mi.
    Est. $795/mo

    Spitzer Toyota

    4.7
    Check Availability
    Monroeville, PA (423 mi)

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  • Ebony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 DenaliEbony Twilight Metallic 2021 GMC Sierra 2500 Denali

    $51,948

    $400
    69,266 mi.
    Est. $976/mo

    Byers Toyota

    4.6
    Check Availability
    Delaware, OH (263 mi)
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  • Summit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 DenaliSummit White 2021 GMC Sierra 2500 Denali

    $56,746

    $600
    67,991 mi.
    Est. $1,067/mo

    Luther Hudson Chevrolet GMC

    4.9
    Check Availability
    Hudson, WI (333 mi)
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  • 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

    $54,953

    70,902 mi.
    Est. $1,033/mo

    Perrysburg Automall

    4.6
    Check Availability
    Perrysburg, OH (208 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 2500 SLTPacific Blue Metallic 2021 GMC Sierra 2500 SLTPacific Blue Metallic 2021 GMC Sierra 2500 SLTPacific Blue Metallic 2021 GMC Sierra 2500 SLTPacific Blue Metallic 2021 GMC Sierra 2500 SLTPacific Blue Metallic 2021 GMC Sierra 2500 SLT

    $47,500

    114,867 mi.
    Est. $893/mo

    Chevrolet Buick GMC of Millersburg

    4.5
    Check Availability
    Millersburg, OH (313 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

    $59,210

    $2.7K
    63,965 mi.
    Est. $1,113/mo

    Garber Chevrolet Highland

    4.4
    Check Availability
    Highland, IN (26 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

    $47,345

    $591
    149,721 mi.
    Est. $890/mo

    Covert Buick GMC Bee Cave

    4.6
    Check Availability
    Austin, TX (986 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

    $55,686

    76,958 mi.
    Est. $1,047/mo

    Dan Cummins Chevrolet Buick of Paris

    4.7
    Check Availability
    Paris, KY (311 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

    $39,988

    $812
    180,823 mi.
    Est. $752/mo

    McKinney Buick GMC

    4.1
    Check Availability
    McKinney, TX (779 mi)
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  • Brownstone Metallic 2021 GMC Sierra 2500 AT4Brownstone Metallic 2021 GMC Sierra 2500 AT4Brownstone Metallic 2021 GMC Sierra 2500 AT4Brownstone Metallic 2021 GMC Sierra 2500 AT4Brownstone Metallic 2021 GMC Sierra 2500 AT4Brownstone Metallic 2021 GMC Sierra 2500 AT4

    $45,554

    $1.4K
    94,170 mi.
    Est. $856/mo

    Basil Toyota

    4.6
    Check Availability
    Lockport, NY (464 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 $82,825 50 Great deals
2025 GMC Sierra 2500 $73,129 195 Great deals
2024 GMC Sierra 2500 $69,409 414 Great deals
2023 GMC Sierra 2500 $56,096 112 Great deals
2022 GMC Sierra 2500 $53,112 117 Great deals
2020 GMC Sierra 2500 $50,307 97 Great deals
2019 GMC Sierra 2500 $40,769 35 Great deals
2018 GMC Sierra 2500 $40,067 33 Great deals
2017 GMC Sierra 2500 $35,519 20 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 $52,199, 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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