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.

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.

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.

2018 GMC Sierra 1500

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

Starting MSRP

$28,705 – $56,055

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NHTSA safety

★★★★★

5 / 5 overall

Frontal (driver)★★★★★

Frontal (passenger)★★★★★

Side (driver)★★★★★

Side (passenger)★★★★★

Rollover★★★★☆

Source: NHTSA

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Manufacturer specs and trim data below are still available for research. Check back for dealer inventory, or browse other GMC models.

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Pricing

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

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 2026-07-12). 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

Compare 2018 GMC Sierra 1500 trim specifications
Spec	Base9 configurations	SLE9 configurations	SLT5 configurations	Denali3 configurations
MSRP	$28,705 – $40,015	$35,405 – $45,840	$42,530 – $48,440	$52,605 – $56,055
Fuel economy (city/hwy)	18/24	18/24	16/23	16/22
Horsepower	285 hp	285 hp	355 hp	355 hp
Torque	305 lb-ft	305 lb-ft	383 lb-ft	383 lb-ft
Engine	4.3L V6 flex-fuel (FFV)	4.3L V6 flex-fuel (FFV)	5.3L V8 gas	5.3L V8 gas
Seating	3	3	6	5
Drivetrain	RWD	RWD	RWD	RWD
Cargo (cu ft)	—	—	—	—
Max towing	8,900 lbs	8,900 lbs	12,500 lbs	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

Full specifications by trim
Spec	Base	SLE	SLT	Denali
Engine & drivetrain
Engine type	flex-fuel (FFV)	flex-fuel (FFV)	gas	gas
Fuel type	flex-fuel (unleaded/E85)	flex-fuel (unleaded/E85)	regular unleaded	regular unleaded
Cylinders	V6	V6	V8	V8
Displacement	4.3 L	4.3 L	5.3 L	5.3 L
Horsepower	285 hp	285 hp	355 hp	355 hp
Torque	305 lb-ft	305 lb-ft	383 lb-ft	383 lb-ft
Transmission	6-speed shiftable automatic	6-speed shiftable automatic	6-speed shiftable automatic	8-speed shiftable automatic
Drivetrain	rear wheel drive	rear wheel drive	rear wheel drive	rear wheel drive
Dimensions
Body type	Truck (Regular Cab)	Truck (Regular Cab)	Truck (Double Cab)	Truck (Crew Cab)
Doors	2	2	4	4
Seating	3	3	6	5
Length	205.6 in	205.6 in	229.5 in	229.5 in
Width	80 in	80 in	80 in	80 in
Height	74 in	74 in	73.9 in	74.2 in
Wheelbase	119 in	119 in	143.5 in	143.5 in
Ground clearance	8.2 in	8.2 in	8.5 in	8.7 in
Capacity & weight
Max towing	8,900 lbs	8,900 lbs	12,500 lbs	9,300 lbs
Max payload	1,960 lbs	1,960 lbs	1,890 lbs	1,810 lbs
Curb weight	4,515 lbs	4,515 lbs	4,982 lbs	5,161 lbs
Fuel tank	26 gal	26 gal	26 gal	26 gal
Fuel economy & EV
Combined MPG	20	20	19	18
City MPG	18	18	16	16
Highway MPG	24	24	23	22