Technical specs may differ depending on trim
Engine power
360 - 445 hp @ 2800 - 5400 rpm | 268 - 332 kW
Torque
515 - 1234 Nm @ 1600 - 4200 rpm | 380 - 910 lb-ft
Drive type
Front wheel drive, All wheel drive (4x4), Rear wheel drive
GMC Sierra HD Pick-up Truck: Generations History With Key Specs
2018 - to present
2018 - to present
2018 - to present
2018 - to present
2018 - to present
GMC 2018 Sierra HD Crew Cab Long Box
Performance
Engine and Transmission
Engine displacement
5965 - 6588 cc
Number of cylinders
8
Turbocharger
Yes
Engine location
Front, Longitudinal
Cylinder bore
101.6 - 103 mm
Transmission Type
6 (Automatic)
Position of cylinders
V engine
Piston stroke
92 - 99 mm
Compression
9.7 - 16 mm
Valves per cylinder
4, 2
Powertrain
Internal Combustion
Valvetrain
VVT
Fuel Consumption
Fuel type
Diesel, Petrol (Gasoline)
Fuel supply
Diesel Commonrail, Multi-point indirect
Fuel tank
136 L | 35.9 gallons
Dimensions
Wheelbase
4258 mm | 168 in.
Length
6359 - 6563 mm | 250 - 258 in.
Height
1981 mm | 78 in.
Width including mirrors
2045 mm | 81 in.
Weight and Capacity
Towing capacity with 12% brakes
6078 - 9072 kg | 13402 - 20004 lbs
Trunk space (max)
2160 L | 76.3 cu-ft
Max weight
4309 - 5908 kg | 9501 - 13027 lbs
Number of doors
4
Curb weight
2884 - 3672 kg | 6359 - 8097 lbs
Number of seats
5
Wheels and Tires
Rim size
R15, 6.5 X 16, 8.5J х 20; 10.5J х 20, 9.5J x 20; 11.5J x 20, R15; R16
Tire size
185/65 R15, 235/60 R16, 245/35 ZR 20; 295/35 ZR 20; 285/35 ZR 20, 205/65 R15 H, 235/35 R20; 295/35 R20, 255/35 ZR 20; 315/35 ZR 20; 255/35 ZR 20; 305/35 ZR 20, 185/55 R15; 195/45 R16, 235/35 ZR20; 295/35 ZR20
GMC 2018 Sierra HD Crew Cab Standard Box
Performance
Engine power
360 - 445 hp @ 2800 - 5400 rpm | 268 - 332 kW
Torque
515 - 1234 Nm @ 1600 - 4200 rpm | 380 - 910 lb-ft
Drive type
Rear wheel drive, Front wheel drive, All wheel drive (4x4)
Engine and Transmission
Engine displacement
5965 - 6588 cc
Number of cylinders
8
Engine location
Front, Longitudinal
Cylinder bore
101.6 - 103 mm
Transmission Type
6 (Automatic)
Powertrain
Internal Combustion
Valvetrain
VVT
Position of cylinders
V engine
Piston stroke
92 - 99 mm
Compression
9.7 - 16 mm
Valves per cylinder
2, 4
Turbocharger
Yes
Fuel Consumption
Fuel type
Petrol (Gasoline), Diesel
Fuel supply
Multi-point indirect, Diesel Commonrail
Fuel tank
136 L | 35.9 gallons
Dimensions
Wheelbase
3904 mm | 154 in.
Length
6083 mm | 239 in.
Height
1988 mm | 78 in.
Width including mirrors
2045 mm | 81 in.
Weight and Capacity
Towing capacity with 12% brakes
5897 kg | 13003 lbs
Trunk space (max)
1727 L | 61 cu-ft
Max weight
4309 - 5216 kg | 9501 - 11501 lbs
Number of doors
4
Curb weight
2843 - 3435 kg | 6269 - 7574 lbs
Number of seats
5
Wheels and Tires
Rim size
R19; R20, 6.5J x 16; 7J x 17, 6J x 15; 6.5J x 16; 7J x 17, R15; R16
Tire size
245/40 ZR19; 285/40 ZR19; 245/35 ZR20; 285/35 ZR20, 205/55 R16; 225/45 R17, 195/65 R15; 205/55 R16; 225/45 R17, 185/55 R15; 195/45 R16, 205/70 R15 S, 205/65 R15 H
GMC 2018 Sierra HD Double Cab Long Box
Performance
Engine power
360 - 445 hp @ 2800 - 5400 rpm | 268 - 332 kW
Torque
515 - 1234 Nm @ 1600 - 4200 rpm | 380 - 910 lb-ft
Drive type
Front wheel drive, All wheel drive (4x4), Rear wheel drive
Engine and Transmission
Engine displacement
5965 - 6588 cc
Number of cylinders
8
Engine location
Front, Longitudinal
Cylinder bore
101.6 - 103 mm
Transmission Type
6 (Automatic)
Powertrain
Internal Combustion
Valvetrain
VVT
Position of cylinders
V engine
Piston stroke
92 - 99 mm
Compression
9.7 - 16 mm
Valves per cylinder
2, 4
Turbocharger
Yes
Fuel Consumption
Fuel type
Petrol (Gasoline), Diesel
Fuel supply
Multi-point indirect, Diesel Commonrail
Fuel tank
136 L | 35.9 gallons
Dimensions
Wheelbase
4017 mm | 158 in.
Length
6322 mm | 249 in.
Height
1978 mm | 78 in.
Width including mirrors
2045 mm | 81 in.
Weight and Capacity
Towing capacity with 12% brakes
5897 - 9071 kg | 13003 - 20002 lbs
Trunk space (max)
2160 L | 76.3 cu-ft
Max weight
4309 - 5908 kg | 9501 - 13027 lbs
Number of doors
4
Curb weight
2823 - 3584 kg | 6225 - 7903 lbs
Number of seats
5
Wheels and Tires
Rim size
R15, R16
Tire size
185/65 R15, 235/60 R16, 205/65 R15 V
GMC 2018 Sierra HD Double Cab Standard Box
Performance
Engine power
360 - 445 hp @ 2800 - 5400 rpm | 268 - 332 kW
Torque
515 - 1234 Nm @ 1600 - 4200 rpm | 380 - 910 lb-ft
Drive type
All wheel drive (4x4), Rear wheel drive
Engine and Transmission
Engine displacement
5965 - 6588 cc
Number of cylinders
8
Engine location
Front, Longitudinal
Cylinder bore
101.6 - 103 mm
Transmission Type
6 (Automatic)
Powertrain
Internal Combustion
Valvetrain
VVT
Position of cylinders
V engine
Piston stroke
92 - 99 mm
Compression
9.7 - 16 mm
Valves per cylinder
2, 4
Turbocharger
Yes
Fuel Consumption
Fuel type
Petrol (Gasoline), Diesel
Fuel supply
Multi-point indirect, Diesel Commonrail
Fuel tank
136 L | 35.9 gallons
Dimensions
Wheelbase
3662 mm | 144 in.
Length
5842 mm | 230 in.
Height
1984 mm | 78 in.
Width including mirrors
2045 mm | 81 in.
Weight and Capacity
Towing capacity with 12% brakes
5897 kg | 13003 lbs
Trunk space (max)
1727 L | 61 cu-ft
Max weight
4309 - 4536 kg | 9501 - 10002 lbs
Number of doors
4
Curb weight
2776 - 3328 kg | 6121 - 7338 lbs
Number of seats
5
Wheels and Tires
Rim size
8.5J x 21; 10J x 21
Tire size
245/35 ZR21; 285/30 ZR21, 205/65 R15
GMC 2018 Sierra HD Regular Cab Long Box
Performance
Engine power
360 - 445 hp @ 2800 - 5400 rpm | 268 - 332 kW
Torque
515 - 1234 Nm @ 1600 - 4200 rpm | 380 - 910 lb-ft
Drive type
Rear wheel drive, All wheel drive (4x4)
Engine and Transmission
Engine displacement
5965 - 6588 cc
Number of cylinders
8
Engine location
Front, Longitudinal
Cylinder bore
101.6 - 103 mm
Transmission Type
6 (Automatic)
Powertrain
Internal Combustion
Valvetrain
VVT
Position of cylinders
V engine
Piston stroke
92 - 99 mm
Compression
9.7 - 16 mm
Valves per cylinder
2, 4
Turbocharger
Yes
Fuel Consumption
Fuel type
Petrol (Gasoline), Diesel
Fuel supply
Multi-point indirect, Diesel Commonrail
Fuel tank
136 L | 35.9 gallons
Dimensions
Wheelbase
3393 mm | 134 in.
Length
5700 mm | 224 in.
Height
1963 mm | 77 in.
Width including mirrors
2035 mm | 80 in.
Weight and Capacity
Towing capacity with 12% brakes
6350 - 9072 kg | 14002 - 20004 lbs
Trunk space (max)
2160 L | 76.3 cu-ft
Max weight
4309 - 5908 kg | 9501 - 13027 lbs
Number of doors
2, 5
Number of seats
2
Wheels and Tires
Tire size
205/65 R15 H, 245/30 ZR20; 265/30 ZR20, 255/35 ZR20; 285/30 ZR20, 245/35 ZR21; 285/30 ZR21, 205/70 R15 S
Rim size
8J х 20; 9J х 20, 8.5J х 20; 9.5J х 20, 8.5J x 20; 9.5J x 20, 8.5J x 21; 10J x 21
