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2018 GMC Sierra 1500

4 trims · 26 configurations · Truck (Regular Cab), Truck (Double Cab), Truck (Crew Cab)

From live listings

$498

1099 for sale · Starting MSRP $28,705 – $56,055

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Key specifications

NHTSA safety

★★★★★

5 / 5 overall

Frontal (driver)★★★★★
Frontal (passenger)★★★★★
Side (driver)★★★★★
Rollover★★★★☆

Source: NHTSA · 7 recalls on record

GMC Sierra 1500 for sale

1099 live listings from $498 · median $59,887

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GMC Sierra 1500 for sale by city

GMC Sierra 1500 deals — 204+ below-market listings with dealer attribution

Pricing

How much should you pay for the GMC Sierra 1500? Select a trim to update purchase and lease estimates, then shop live inventory.

MSRP by trim

Select a trim to update the payment estimates. MSRP is for each trim's base configuration and excludes destination, taxes, and options.

Purchase information

Based on Base

Total price (Base MSRP)

$28,705

Typical monthly

$568/mo

Avg. APR

7.00%

60-month loan estimate for good credit (rates as of 2026-08-23). Not a credit offer; actual APR varies by lender, credit, and dealer.

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Compare 2018 GMC Sierra 1500 trims

  • Base

    9 configurations

    MSRP
    $28,705 – $40,015
    Fuel economy (city/hwy)
    18/24
    Horsepower
    285 hp
    Torque
    305 lb-ft
    Engine
    4.3L V6 flex-fuel (FFV)
    Seating
    3
    Drivetrain
    RWD
    Cargo (cu ft)
    —
    Max towing
    8,900 lbs

  • SLE

    9 configurations

    MSRP
    $35,405 – $45,840
    Fuel economy (city/hwy)
    18/24
    Horsepower
    285 hp
    Torque
    305 lb-ft
    Engine
    4.3L V6 flex-fuel (FFV)
    Seating
    3
    Drivetrain
    RWD
    Cargo (cu ft)
    —
    Max towing
    8,900 lbs

  • SLT

    5 configurations

    MSRP
    $42,530 – $48,440
    Fuel economy (city/hwy)
    16/23
    Horsepower
    355 hp
    Torque
    383 lb-ft
    Engine
    5.3L V8 gas
    Seating
    6
    Drivetrain
    RWD
    Cargo (cu ft)
    —
    Max towing
    12,500 lbs

  • Denali

    3 configurations

    MSRP
    $52,605 – $56,055
    Fuel economy (city/hwy)
    16/22
    Horsepower
    355 hp
    Torque
    383 lb-ft
    Engine
    5.3L V8 gas
    Seating
    5
    Drivetrain
    RWD
    Cargo (cu ft)
    —
    Max towing
    9,300 lbs

Specifications shown for each trim’s base configuration; drivetrain, cab, and box options vary within a trim, and MSRP shows the full range. MSRP excludes destination fees, taxes, and dealer-installed options.

Full specifications

Shown for each trim's base configuration. Drivetrain, cab, and box options within a trim can change dimensions, capacities, and fuel economy.

Engine & drivetrain

Engine type
Baseflex-fuel (FFV)
SLEflex-fuel (FFV)
SLTgas
Denaligas
Fuel type
Baseflex-fuel (unleaded/E85)
SLEflex-fuel (unleaded/E85)
SLTregular unleaded
Denaliregular unleaded
Cylinders
BaseV6
SLEV6
SLTV8
DenaliV8
Displacement
Base4.3 L
SLE4.3 L
SLT5.3 L
Denali5.3 L
Horsepower
Base285 hp
SLE285 hp
SLT355 hp
Denali355 hp
Torque
Base305 lb-ft
SLE305 lb-ft
SLT383 lb-ft
Denali383 lb-ft
Transmission
Base6-speed shiftable automatic
SLE6-speed shiftable automatic
SLT6-speed shiftable automatic
Denali8-speed shiftable automatic
Drivetrain
Baserear wheel drive
SLErear wheel drive
SLTrear wheel drive
Denalirear wheel drive

Dimensions

Body type
BaseTruck (Regular Cab)
SLETruck (Regular Cab)
SLTTruck (Double Cab)
DenaliTruck (Crew Cab)
Doors
Base2
SLE2
SLT4
Denali4
Seating
Base3
SLE3
SLT6
Denali5
Length
Base205.6 in
SLE205.6 in
SLT229.5 in
Denali229.5 in
Width
Base80 in
SLE80 in
SLT80 in
Denali80 in
Height
Base74 in
SLE74 in
SLT73.9 in
Denali74.2 in
Wheelbase
Base119 in
SLE119 in
SLT143.5 in
Denali143.5 in
Ground clearance
Base8.2 in
SLE8.2 in
SLT8.5 in
Denali8.7 in

Capacity & weight

Max towing
Base8,900 lbs
SLE8,900 lbs
SLT12,500 lbs
Denali9,300 lbs
Max payload
Base1,960 lbs
SLE1,960 lbs
SLT1,890 lbs
Denali1,810 lbs
Curb weight
Base4,515 lbs
SLE4,515 lbs
SLT4,982 lbs
Denali5,161 lbs
Fuel tank
Base26 gal
SLE26 gal
SLT26 gal
Denali26 gal

Fuel economy & EV

Combined MPG
Base20
SLE20
SLT19
Denali18
City MPG
Base18
SLE18
SLT16
Denali16
Highway MPG
Base24
SLE24
SLT23
Denali22

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GMC Sierra 1500 ranks in these lists

2018 GMC Sierra 1500 FAQ

How much does the 2018 GMC Sierra 1500 cost?
The 2018 GMC Sierra 1500 has a starting MSRP of $28,705, ranging up to $56,055 for the top trim. Trim pricing includes Base from $28,705; SLE from $35,405; SLT from $42,530; Denali from $52,605. Live listings on OpenDealer currently start at $498.
What is the fuel economy of the 2018 GMC Sierra 1500?
The 2018 GMC Sierra 1500 achieves up to 20 MPG combined (EPA estimate), depending on trim and configuration.
How much can the 2018 GMC Sierra 1500 tow?
The 2018 GMC Sierra 1500 has a maximum towing capacity of up to 12,500 pounds, depending on trim and equipment.
Is the 2018 GMC Sierra 1500 safe?
The 2018 GMC Sierra 1500 earned an overall rating of 5 out of 5 stars in NHTSA crash testing. NHTSA lists 7 recalls for this model year; check the recalls section for details.
How many trims does the 2018 GMC Sierra 1500 come in?
The 2018 GMC Sierra 1500 is available in 4 trims (26 total configurations) across Truck (Regular Cab) and Truck (Double Cab) and Truck (Crew Cab) body styles with rear wheel drive, four wheel drive.