Back in October, General Motors debuted the fully refreshed 2022 GMC Sierra 1500, unveiling a long list of updates and changes for the popular pickup truck. Now, GM Authority has learned General Motors’ recommended powertrain mix for dealers stocking the 2022 GMC Sierra AT4.
The 2022 GMC Sierra AT4 is available with two engine options, including the naturally aspirated 6.2L V8 L87 gasoline engine, rated at 420 horsepower at 5,600 rpm and 460 pound-feet of torque at 4,100 rpm, and the 3.0L I6 LM2 turbodiesel Duramax, rated at 277 horsepower at 3,750 rpm and 460 pound-feet of torque. Both engines connect to the GM 10-speed automatic transmission, as well as a four-wheel drive system.
With regard to GM’s recommended powertrain mix for the refreshed 2022 GMC Sierra AT4, the 6.2L V8 L87 is most heavily weighted at 60 percent, while the 3.0L I6 LM2 is recommended at 40 percent.
Notably, the new GMC Sierra AT4X trim level is only available with a single engine option, namely the naturally aspirated 6.2L V8 L87. Elsewhere in the lineup, the Sierra 1500 is available with the turbocharged 2.7L I4 L3B gasoline engine and naturally aspirated 5.3L V8 L84 gasoline engine.
As a reminder, the 2022 GMC Sierra AT4 is an off-road-oriented trim level that slots in below the even-more-capable AT4X with regard to the Sierra 1500 lineup. Standout features for the AT4 include a two-inch factory suspension lift with off-road suspension and Rancho monotube shocks, as well as a two-speed AutoTrac transfer case, an automatic locking rear differential, and underbody skid plates to protect vulnerable mechanical components.
The AT4 also features 18-inch machined aluminum wheels with Dark Grey accents, Mud-Terrain Goodyear Wrangler DuraTrac tires, and unique AT4 badging.