CarSpecHub

GMC Sierra, 2018–2022

GMC Sierra 4th generation specifications

The GMC Sierra 4th generation was built from 2018 to 2022. This page lists all 24 versions (pickup) with 274–420 hp and 413–623 Nm of torque.

274–420 hp
Power (204–313 kW)
413–623 Nm
Torque (305–460 lb-ft)
5,886 mm
Length (232 in)

All versions

From least to most powerful. Figures are manufacturer claims and vary by market and model year.

Power, torque and performance for each version of the GMC Sierra 4th generation.
VersionEnginePowerTorque0–100 km/hTop speedGearboxDrive
3.0 AT Pickup Double cabin Double Cab3.0 litre diesel274 hp 204 kW623 Nm——Automatic, 10-speedRear wheel drive
3.0 AT 4WD Pickup Double cabin Crew Cab3.0 litre diesel274 hp 204 kW623 Nm——Automatic, 10-speedfull
3.0 AT 4WD Pickup Double cabin Double Cab3.0 litre diesel274 hp 204 kW623 Nm——Automatic, 10-speedfull
3.0 AT 4WD Pickup Single cabin Regular Cab3.0 litre diesel274 hp 204 kW623 Nm——Automatic, 10-speedfull
4.3 AT Pickup Double cabin Double Cab4.3 litre gasoline284 hp 212 kW413 Nm——Automatic, 6-speedRear wheel drive
4.3 AT Pickup Single cabin Regular Cab4.3 litre gasoline284 hp 212 kW413 Nm——Automatic, 6-speedRear wheel drive
4.3 AT 4WD Pickup Double cabin Crew Cab4.3 litre gasoline284 hp 212 kW413 Nm——Automatic, 6-speedfull
4.3 AT 4WD Pickup Double cabin Double Cab4.3 litre gasoline284 hp 212 kW413 Nm——Automatic, 6-speedfull
4.3 AT 4WD Pickup Single cabin Regular Cab4.3 litre gasoline284 hp 212 kW413 Nm——Automatic, 6-speedfull
2.7 AT Pickup Double cabin Crew Cab2.7 litre gasoline310 hp 231 kW473 Nm——Automatic, 8-speedRear wheel drive
2.7 AT 4WD Pickup Double cabin Crew Cab2.7 litre gasoline310 hp 231 kW473 Nm——Automatic, 8-speedfull
2.7 AT 4WD Pickup Double cabin Double Cab2.7 litre gasoline310 hp 231 kW473 Nm——Automatic, 8-speedfull
2.7 AT 4WD Pickup Single cabin Regular Cab2.7 litre gasoline310 hp 231 kW473 Nm——Automatic, 8-speedfull
5.3 AT Pickup Double cabin Crew Cab5.3 litre gasoline355 hp 265 kW519 Nm——Automatic, 6-speedRear wheel drive
5.3 AT Pickup Single cabin Regular Cab5.3 litre gasoline355 hp 265 kW519 Nm——Automatic, 8-speedRear wheel drive
5.3 AT 4WD Pickup Double cabin Crew Cab5.3 litre gasoline355 hp 265 kW519 Nm——Automatic, 8-speedfull
5.3 AT 4WD Pickup Double cabin Double Cab5.3 litre gasoline355 hp 265 kW519 Nm——Automatic, 8-speedfull
5.3 AT 4WD Pickup Single cabin Regular Cab5.3 litre gasoline355 hp 265 kW519 Nm——Automatic, 10-speedfull
6.2 AT 4WD Pickup Double cabin Crew Cab6.2 litre gasoline420 hp 313 kW623 Nm——Automatic, 10-speedAll wheel drive
6.2 AT 4WD Pickup Double cabin Double Cab6.2 litre gasoline420 hp 313 kW623 Nm——Automatic, 10-speedAll wheel drive
6.2 AT 4WD Pickup Single cabin Regular Cab6.2 litre gasoline420 hp 313 kW623 Nm——Automatic, 10-speedAll wheel drive
6.2 AT AWD Pickup Double cabin Double Cab6.2 litre gasoline420 hp 313 kW623 Nm——Automatic, 10-speedAll wheel drive
6.2 AT AWD Pickup Single cabin Regular Cab6.2 litre gasoline420 hp 313 kW623 Nm——Automatic, 10-speedAll wheel drive
6.2 AT AWD Pickup Double cabin Crew Cab6.2 litre gasoline420 hp 313 kW623 Nm——Automatic, 10-speedAll wheel drive

Dimensions and weight

Typical values for the 4th generation, pickup.
Length5,886 mm232 in
Width2,063 mm81 in
Height1,921 mm76 in
Wheelbase3,745 mm147 in
Kerb weight2,021–2,274 kg4,456–5,013 lb
Seats5, 6
Fuel tank91 litres24 US gal

Questions about the GMC Sierra 4th generation

What is the most powerful GMC Sierra 4th generation?

The 6.2 AT 4WD pickup double cabin crew cab, with 420 hp (313 kW) and 623 Nm of torque.

What engines does the GMC Sierra 4th generation have?

Engines from 2.7 to 6.2 litres, running on diesel or gasoline. The table above lists the power, torque and gearbox of each version.

How big is the GMC Sierra 4th generation?

About 5,886 mm long, 2,063 mm wide and 1,921 mm tall (232 in long), weighing 2,021–2,274 kg. Figures vary slightly by body style.

Every GMC Sierra generation

  1. 1st generation (GMT800) 1998–2007
  2. 1st generation 2002–2020
  3. 2nd generation (GMT900) 2006–2014
  4. 3rd generation (K2XX), facelift 2015–2018
  5. 4th generation 2018–2022
  6. 4th generation, facelift 2022–present

GMC Sierra overview: current engines, dimensions and markets

Sources: manufacturer data for each version. Figures are manufacturer claims and vary by market, model year and equipment.