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  • Onyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 Denali

    $36,509

    $1.8K
    72,770 mi.
    Est. $685/mo

    Bill Kay Chevrolet

    4.6
    Check Availability
    Lisle, IL (28 mi)

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  • Onyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 Denali

    $36,509

    $1.8K
    72,770 mi.
    Est. $685/mo

    Bill Kay Chevrolet

    4.6
    Check Availability
    Lisle, IL (28 mi)

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  • White Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLT

    $32,992

    107,030 mi.
    Est. $619/mo

    Advantage Chevrolet of Bolingbrook

    4.8
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    Bolingbrook, IL (23 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 Elevation

    $33,000

    $1.3K
    67,230 mi.
    Est. $619/mo

    Team Toyota

    4.8
    Check Availability
    Schererville, IN (12 mi)
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  • Gray 2020 GMC Sierra 1500 SLTGray 2020 GMC Sierra 1500 SLTGray 2020 GMC Sierra 1500 SLTGray 2020 GMC Sierra 1500 SLTGray 2020 GMC Sierra 1500 SLTGray 2020 GMC Sierra 1500 SLT

    $27,999

    141,134 mi.
    Est. $525/mo

    Your Choice Auto Sales of Joliet

    4.6
    Check Availability
    Joliet, IL (23 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 Denali

    $33,983

    $516
    87,671 mi.
    Est. $637/mo

    Star Motor Sales

    4.8
    Check Availability
    Downers Grove, IL (27 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 Elevation

    $39,995

    79,881 mi.
    Est. $750/mo

    High Quality Auto Sales - Archer Ave

    Check Availability
    Chicago, IL (21 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLT

    $31,900

    103,451 mi.
    Est. $598/mo

    Arnie Bauer Buick GMC of Matteson

    4.3
    Check Availability
    Matteson, IL (4 mi)

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  • Black 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLT

    $26,995

    157,922 mi.
    Est. $506/mo

    Windy City Motors

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    Chicago, IL (29 mi)
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  • White 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 Elevation

    $33,997

    99,324 mi.
    Est. $638/mo

    Best Car Finance

    Check Availability
    Frankfort, IL (9 mi)
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  • Onyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 Denali

    $42,525

    $250
    38,014 mi.
    Est. $798/mo

    Haggerty Buick GMC Inc

    5.0
    Check Availability
    Villa Park, IL (29 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLT

    $30,777

    120,015 mi.
    Est. $577/mo

    Bill Kay Downers Grove Nissan

    4.6
    Check Availability
    Downers Grove, IL (27 mi)
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  • Cardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLE

    $29,650

    $249
    53,207 mi.
    Est. $556/mo

    Oakbrook Toyota in Westmont

    4.4
    Check Availability
    Westmont, IL (25 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2020 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2020 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2020 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2020 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2020 GMC Sierra 1500 SLT

    $39,995

    54,323 mi.
    Est. $750/mo

    Mike Haggerty Buick GMC

    3.7
    Check Availability
    Oak Lawn, IL (15 mi)
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  • Burgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 Denali

    $38,995

    $500
    75,964 mi.
    Est. $731/mo

    Triple M Motors

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    St John, IN (13 mi)
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  • Onyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 Denali

    $41,980

    55,957 mi.
    Est. $787/mo

    Ultimo Motors East

    3.2
    Check Availability
    Westmont, IL (26 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4

    $33,995

    75,306 mi.
    Est. $638/mo

    Adam Auto Group

    3.1
    Check Availability
    Crestwood, IL (9 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4

    $26,488

    152,090 mi.
    Est. $497/mo

    iDrive Motor Sports Inc.

    2.0
    Check Availability
    Berwyn, IL (23 mi)
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  • $37,996

    58,273 mi.
    Est. $713/mo

    Taylor Ford of Manteno

    4.8
    Check Availability
    Manteno, IL (21 mi)
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  • $29,500

    115,284 mi.
    Est. $553/mo

    D'Arcy Buick GMC

    4.3
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    Joliet, IL (25 mi)
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  • Gray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 Denali

    $42,998

    52,533 mi.
    Est. $806/mo

    CarMax St. Louis South Lindbergh

    Check Availability
    $99 delivery to Tinley Park, IL (6 mi)
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  • Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4

    $35,998

    105,733 mi.
    Est. $675/mo

    CarMax Rogers

    Check Availability
    $299 delivery to Tinley Park, IL (6 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLT

    $34,988

    55,586 mi.
    Est. $656/mo

    Jennings Chevy / VW

    4.8
    Check Availability
    Glenview, IL (38 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 Elevation

    $28,995

    85,988 mi.
    Est. $544/mo

    Fieldhouse Ford Chrysler Dodge Jeep Ram

    4.6
    Check Availability
    Demotte, IN (35 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 Denali

    $37,977

    72,830 mi.
    Est. $712/mo

    Genesis of Aurora

    4.8
    Check Availability
    AURORA, IL (32 mi)
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  • White Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 Denali

    $38,580

    72,483 mi.
    Est. $724/mo

    Al Piemonte Chevrolet

    3.6
    Check Availability
    East Dundee, IL (50 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLT

    $26,900

    138,360 mi.
    Est. $504/mo

    Top Gear Motors

    4.5
    Check Availability
    ADDISON, IL (33 mi)
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  • Onyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 Elevation

    $37,991

    $1K
    39,202 mi.
    Est. $712/mo

    Audi Naperville

    4.7
    Check Availability
    Naperville, IL (31 mi)
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  • Not Priced

    53,818 mi.
    Est. $0/mo

    Motor Cars Mitsubishi

    4.3
    Check Availability
    Aurora, IL (32 mi)
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  • $29,994

    60,908 mi.
    Est. $562/mo

    Muller Honda

    4.9
    Check Availability
    Highland Park, IL (46 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLT

    $24,995

    149,267 mi.
    Est. $469/mo

    Marquardt of Barrington GMC

    4.8
    Check Availability
    Barrington, IL (49 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $59,787 2 Good deals
2025 GMC Sierra 1500 $55,081 7 Great deals
2024 GMC Sierra 1500 $49,228 23 Good deals
2023 GMC Sierra 1500 $47,253 19 Good deals
2022 GMC Sierra 1500 $40,644 12 Good deals
2021 GMC Sierra 1500 $35,386 5 Great deals
2019 GMC Sierra 1500 $31,238 9 Good deals

About the 2020 GMC Sierra 1500

Basics

Base shown (base trim).

Seating
3
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
17
Transmission
6-Speed A/T
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
Side view of the 2020 GMC Sierra 1500
FAQs

How much does the 2020 GMC Sierra 1500 cost?

The 2020 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 1500 is $33,924, with pricing starting at $14,994.

What is the MPG of the 2020 GMC Sierra 1500?

The 2020 GMC Sierra 1500 offers up to 15 MPG in city driving and 21 MPG on the highway for a combined rating of 17 MPG.

These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2020 GMC Sierra 1500?

The 2020 GMC Sierra 1500 compares to and/or competes against the following vehicles:


Is the 2020 GMC Sierra 1500 reliable?

The 2020 GMC Sierra 1500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 1500 owners.

Is the 2020 GMC Sierra 1500 a good truck?

Below are the Cars.com consumer ratings for the 2020 GMC Sierra 1500.

(69 reviews)
Rating breakdown (out of 5):
Comfort
4.9
Interior
4.8
Performance
4.8
Value
4.6
Exterior
4.9
Reliability
4.7
Ratings (69 reviews)

91% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.8
Performance
4.8
Value
4.6
Exterior
4.9
Reliability
4.7
Trims

AT4 (3 styles)

Style
4WD Double Cab 147" AT4 4WD Crew Cab 157" AT4 4WD Crew Cab 147" AT4
Inventory price
Starting at $51,300 Starting at $54,000 Starting at $53,700
Combined MPG
18 18 18
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Base (8 styles)

Style
4WD Reg Cab 140" 2WD Reg Cab 140" 4WD Crew Cab 157" 2WD Double Cab 147" 2WD Crew Cab 147" 4WD Double Cab 147" 2WD Crew Cab 157" 4WD Crew Cab 147"
Inventory price
Starting at $34,200 Starting at $29,600 Starting at $39,500 Starting at $33,500 Starting at $35,900 Starting at $36,800 Starting at $36,200 Starting at $39,200
Combined MPG
17 17 20 20 20 20 20 20
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

Denali (4 styles)

Style
2WD Crew Cab 157" Denali 4WD Crew Cab 147" Denali 4WD Crew Cab 157" Denali 2WD Crew Cab 147" Denali
Inventory price
Starting at $55,400 Starting at $58,600 Starting at $58,900 Starting at $55,100
Combined MPG
19 18 18 19
Engine
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)

Elevation (6 styles)

Style
4WD Crew Cab 157" Elevation 2WD Double Cab 147" Elevation 2WD Crew Cab 157" Elevation 2WD Crew Cab 147" Elevation 4WD Double Cab 147" Elevation 4WD Crew Cab 147" Elevation
Inventory price
Starting at $46,500 Starting at $40,500 Starting at $43,200 Starting at $42,900 Starting at $43,800 Starting at $46,200
Combined MPG
20 21 21 21 20 20
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE (6 styles)

Style
2WD Crew Cab 157" SLE 2WD Double Cab 147" SLE 4WD Double Cab 147" SLE 2WD Crew Cab 147" SLE 4WD Crew Cab 157" SLE 4WD Crew Cab 147" SLE
Inventory price
Starting at $40,700 Starting at $38,000 Starting at $41,300 Starting at $40,400 Starting at $44,000 Starting at $43,700
Combined MPG
21 21 20 20 20 20
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLT (6 styles)

Style
4WD Crew Cab 147" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT 4WD Double Cab 147" SLT 2WD Double Cab 147" SLT 2WD Crew Cab 157" SLT
Inventory price
Starting at $50,400 Starting at $46,900 Starting at $50,700 Starting at $48,000 Starting at $44,500 Starting at $47,200
Combined MPG
18 19 18 18 19 19
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)
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