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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

    $58,897

    58,333 mi.
    Est. $1,046/mo

    Sunrise Ford

    4.2
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    Fort Pierce, FL (1,085 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

    $49,324

    102,255 mi.
    Est. $876/mo

    Walt Massey Chevrolet GMC Lucedale

    4.8
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    Lucedale, MS (759 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

    $61,999

    75,190 mi.
    Est. $1,101/mo

    CRM Motors Pelham

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    Pelham, AL (594 mi)
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  • Carbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 DenaliCarbon Black Metallic 2021 GMC Sierra 2500 Denali

    $52,800

    $2.1K
    104,098 mi.
    Est. $938/mo

    Mandal Buick GMC Inc.

    4.6
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    D'lberville, MS (793 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

    $50,474

    100,070 mi.
    Est. $896/mo

    Toyota of Braintree

    4.9
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    Braintree, MA (853 mi)
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  • 2021 GMC Sierra 2500 SLT2021 GMC Sierra 2500 SLT2021 GMC Sierra 2500 SLT2021 GMC Sierra 2500 SLT2021 GMC Sierra 2500 SLT2021 GMC Sierra 2500 SLT

    $37,149

    154,852 mi.
    Est. $660/mo

    Dave Syverson Auto Center

    4.9
    Check Availability
    Albert Lea, MN (314 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

    $63,518

    $5K
    22,201 mi.
    Est. $1,128/mo

    Auto Web Expo

    4.6
    Check Availability
    Plano, TX (796 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

    $61,099

    52,748 mi.
    Est. $1,085/mo

    Audi Gilbert

    4.7
    Check Availability
    Gilbert, AZ (1,443 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

    $49,989

    100,625 mi.
    Est. $888/mo

    Ray Chrysler Dodge Jeep Ram

    4.6
    Check Availability
    Fox Lake, IL (46 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

    $58,234

    $221
    63,965 mi.
    Est. $1,034/mo

    Garber Chevrolet Highland

    4.4
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    Highland, IN (26 mi)
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  • 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

    $47,509

    $486
    18,442 mi.
    Est. $844/mo

    Romeo Chevrolet Buick GMC

    4.3
    Check Availability
    Lake Katrine, NY (701 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

    $45,729

    94,170 mi.
    Est. $812/mo

    Basil Toyota

    4.6
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    Lockport, NY (464 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

    $54,665

    $1K
    50,835 mi.
    Est. $971/mo

    Findlay Chrysler Dodge Jeep Ram

    4.0
    Check Availability
    Findlay, OH (213 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

    $66,554

    54,203 mi.
    Est. $1,182/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (1,437 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

    $61,124

    51,437 mi.
    Est. $1,085/mo

    Landers Toyota

    4.1
    Check Availability
    Little Rock, AR (559 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

    $57,999

    78,468 mi.
    Est. $1,030/mo

    Key GMC of Rochester

    4.7
    Check Availability
    Rochester, NH (856 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

    $34,906

    113,724 mi.
    Est. $620/mo

    Graff Chevrolet

    4.3
    Check Availability
    Grand Prairie, TX (813 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

    $49,858

    98,385 mi.
    Est. $885/mo

    Tameron Hyundai

    4.7
    Check Availability
    Birmingham, AL (588 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

    $57,804

    51,185 mi.
    Est. $1,026/mo

    Zeigler GMC of Holland

    4.8
    Check Availability
    Holland, MI (103 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

    $55,899

    $630
    59,761 mi.
    Est. $993/mo

    Richardson Chevrolet Standish

    4.9
    Check Availability
    Standish, MI (237 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

    $46,990

    139,502 mi.
    Est. $834/mo

    Impex Auto Sales

    4.8
    Check Availability
    Greensboro, NC (583 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

    $60,483

    $1K
    36,095 mi.
    Est. $1,074/mo

    Findlay Nissan Henderson

    4.6
    Check Availability
    Henderson, NV (1,519 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

    $65,900

    $977
    37,835 mi.
    Est. $1,170/mo

    Ray Chevrolet

    4.6
    Check Availability
    Fox Lake, IL (46 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

    $61,999

    $1K
    39,173 mi.
    Est. $1,101/mo

    Larry H. Miller Chrysler Dodge Jeep Ram 104th

    4.2
    Check Availability
    Thornton, CO (917 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

    $52,626

    $972
    84,490 mi.
    Est. $934/mo

    Liberty Buick

    4.8
    Check Availability
    Peoria, AZ (1,454 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

    $54,921

    $1K
    93,281 mi.
    Est. $975/mo

    Pigg Enterprises Inc

    4.9
    Check Availability
    Prattville, AL (655 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

    $55,486

    76,958 mi.
    Est. $985/mo

    Dan Cummins Chevrolet Buick of Paris

    4.6
    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

    $48,540

    $810
    105,323 mi.
    Est. $862/mo

    West Metro Buick GMC

    5.0
    Check Availability
    Monticello, MN (389 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

    $62,585

    38,853 mi.
    Est. $1,111/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (1,454 mi)
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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 $51,170, with pricing starting at $18,455.

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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