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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

    $30,342

    115,390 mi.
    Est. $559/mo

    Arlington Heights Buick GMC

    4.9
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    Arlington heights, IL (20 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

    $29,855

    120,015 mi.
    Est. $550/mo

    Bill Kay Downers Grove Nissan

    4.6
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    Downers Grove, IL (7 mi)

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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $29,371

    60,908 mi.
    Est. $541/mo

    Muller Honda

    4.9
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    Highland Park, IL (26 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

    $28,375

    141,134 mi.
    Est. $522/mo

    Your Choice Auto Sales of Joliet

    4.7
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    Joliet, IL (25 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

    $24,900

    $2K
    138,360 mi.
    Est. $458/mo

    Top Gear Motors

    4.4
    Check Availability
    ADDISON, IL (7 mi)
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  • Summit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLT

    $35,800

    70,930 mi.
    Est. $659/mo

    Mike Haggerty Buick GMC

    3.7
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    Oak Lawn, IL (22 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLE

    $29,277

    89,205 mi.
    Est. $539/mo

    Bredemann Toyota/Scion

    4.8
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    Park Ridge, IL (19 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

    $37,280

    $1.1K
    72,483 mi.
    Est. $686/mo

    Al Piemonte Chevrolet

    3.6
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    East Dundee, IL (17 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

    $30,296

    99,324 mi.
    Est. $558/mo

    Best Car Finance

    Check Availability
    Frankfort, IL (29 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

    $42,937

    38,014 mi.
    Est. $791/mo

    Haggerty Buick GMC Inc

    5.0
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    Villa Park, IL (7 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. $497/mo

    Windy City Motors

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    Chicago, IL (20 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. $736/mo

    High Quality Auto Sales - Archer Ave

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    Chicago, IL (22 mi)
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  • Onyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLE

    $25,988

    119,716 mi.
    Est. $479/mo

    iDrive Motor Sports Inc.

    2.1
    Check Availability
    Berwyn, IL (17 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

    $34,412

    95,905 mi.
    Est. $634/mo

    Woody Buick GMC Naperville

    4.9
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    Naperville, IL (9 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

    $34,896

    96,437 mi.
    Est. $643/mo

    Windy City Motors

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    Chicago, IL (20 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

    $34,362

    75,306 mi.
    Est. $633/mo

    Adam Auto Group

    2.8
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    Crestwood, IL (26 mi)
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  • $29,990

    139,027 mi.
    Est. $552/mo

    Auto Gallery Chicago

    Check Availability
    Addison, IL (7 mi)
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  • $29,990

    122,792 mi.
    Est. $552/mo

    Fox Valley Buick GMC

    4.4
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    St Charles, IL (11 mi)
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  • Burgundy 2020 GMC Sierra 1500 SLTBurgundy 2020 GMC Sierra 1500 SLTBurgundy 2020 GMC Sierra 1500 SLTBurgundy 2020 GMC Sierra 1500 SLTBurgundy 2020 GMC Sierra 1500 SLTBurgundy 2020 GMC Sierra 1500 SLT

    $45,998

    9,038 mi.
    Est. $847/mo

    CarMax Madison

    4.5
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    Free delivery to Naperville, IL (7 mi)
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  • Cardinal Red 2020 GMC Sierra 1500 ElevationCardinal Red 2020 GMC Sierra 1500 ElevationCardinal Red 2020 GMC Sierra 1500 ElevationCardinal Red 2020 GMC Sierra 1500 ElevationCardinal Red 2020 GMC Sierra 1500 Elevation

    $35,490

    46,697 mi.
    Est. $653/mo

    Hopkins Ford of Elgin

    3.5
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    Elgin, IL (14 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

    $36,998

    103,646 mi.
    Est. $681/mo

    CarMax St. Louis Mid Rivers Mall

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    $99 delivery to Naperville, IL (7 mi)
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  • Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4

    $38,952

    74,154 mi.
    Est. $717/mo

    Ray Chevrolet

    4.6
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    Fox Lake, IL (37 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

    $37,996

    58,273 mi.
    Est. $700/mo

    Crosswell Ford

    4.8
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    Manteno, IL (46 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

    $51,990

    38,232 mi.
    Est. $957/mo

    Shaver Preferred Motors

    4.2
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    Merriville, IN (48 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

    $34,676

    $1K
    68,515 mi.
    Est. $638/mo

    CarWise Gurnee

    4.4
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    Gurnee, IL (37 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 Denali

    $37,912

    71,338 mi.
    Est. $698/mo

    Woody Buick GMC of Gurnee

    5.0
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    Gurnee, IL (36 mi)
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  • Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4

    $37,515

    70,457 mi.
    Est. $691/mo

    Chevrolet of Merrillville

    4.9
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    Merrillville, IN (48 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

    $38,246

    75,964 mi.
    Est. $704/mo

    Triple M Motors

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    St John, IN (45 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

    $39,990

    70,640 mi.
    Est. $736/mo

    Ultimate Rides

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    Braidwood, IL (43 mi)
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  • White Frost Tricoat 2020 GMC Sierra 1500 Denali

    $47,234

    18,939 mi.
    Est. $870/mo

    Garber Chevrolet Highland

    4.4
    Check Availability
    Highland, IN (41 mi)
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  • $29,775

    23,460 mi.
    Est. $548/mo

    Chevrolet of Merrillville

    4.9
    Check Availability
    Merrillville, IN (48 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $61,445 5 Good deals
2025 GMC Sierra 1500 $55,049 15 Good deals
2024 GMC Sierra 1500 $48,720 13 Great deals
2023 GMC Sierra 1500 $47,041 18 Great deals
2022 GMC Sierra 1500 $44,076 15 Great deals
2021 GMC Sierra 1500 $37,530 7 Great deals
2019 GMC Sierra 1500 $31,785 5 Great deals
2018 GMC Sierra 1500 $27,195 5 Good deals
2017 GMC Sierra 1500 $23,034 5 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 $34,218, with pricing starting at $14,988.

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

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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