One thing the 2019 GMC Sierra AT4 doesn’t lack is capability but now you can make it even stronger with the newly-available Off-Road Performance Package.
Adding factory-installed performance upgrades, the pack gives the Sierra AT4 more power and purpose. The Off-Road Performance Package consists of a standard 6.2-liter V8 engine that gains more power and torque compared to its stock form courtesy of a performance air intake and cat-back performance exhaust system.
Mated to a 10-speed automatic transmission, the power plant now makes 435 horsepower and 469 lb-ft (635 Nm) of torque. Those are increases of 15 horsepower and 9 lb-ft (12 Nm) of torque over the Sierra AT4 equipped with the same 6.2-liter V8 engine.
In addition to the engine upgrades, the 2019 Sierra AT4 Off-Road Performance Package features 18-inch machined aluminum wheels shod with Goodyear Wrangler DuraTrac tires. All in all, GMC says the pack offers “optimized performance, both on- and off-road.”
The features in the Off-Road Performance package add to the off-road-focused specification of the 2019 GMC Sierra AT4. Introduced earlier this year, the AT4 comes fitted as standard with a 2-inch suspension lift, 4WD with a two-speed transfer case, locking rear differential, skid plates, off-road-tuned Rancho monotube shock absorbers, Hill Descent Control, and Traction Select System.
Highlights also include the GMC-exclusive MultiPro tailgate, red vertical recovery hooks, and more. The Off-Road Performance Package for the 2019 Sierra AT4 is on sale now for $4,940.