GMC Sierra AT4 Gets New Off-Road Performance Package


Even more muscle for tackling the rough stuff.

There's any number of reasons why someone would buy a new pickup. But if covering mixed terrain at speed is yours, you may be interested in this latest enhancement GMC has rolled out for the Sierra.

The new Off-Road Performance Package upgrades on the already rugged Sierra AT4, and brings with it some key features for venturing off the beaten path. Not least of them is a boost in output. With 435 horsepower and 469 lb-ft of torque, the 6.2-liter V8 with the Off-Road Performance Package is 15 hp and 9 lb-ft stronger than the existing version.

The boost comes courtesy of a new cat-back performance exhaust system and an accompanying performance air intake. And though still a little shy of the Ford F-150 Raptor (with its 450 hp and 510 lb-ft), it brings a powerplant recently named one of Wards' 10 Best Engines for 2019 that much closer.

The package also comes with 18-inch machined alloys fitted with Goodyear Wrangler DuraTrac rubber. This on top of the long list of features that makes the AT4 stand out from the standard Sierra. Those include a 2-inch lift kit, 4WD with a two-speed transfer case and locking rear diff, Rancho monotube shocks, hill-descent and traction-select systems, and more.

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“The 2019 GMC Sierra AT4 debuted all-new, purposeful technologies for the premium truck segment and the new Off-Road Performance Package takes it a step farther,” said GMC global vice president Duncan Aldred. “It offers optimized performance, both on- and off-road.”

The package is available to order now for $4,940, on top of the standard price of the Sierra AT4 that starts at $52,295 in double-cab, 79.44-inch standard-box configuration (including the $1,495 destination charge), $57,190 with the larger Crew Cab and 69.92-inch short box, and $57,490 with the Crew Cab and standard box. With the package, you'll be looking at between $57,235 and $62,430 (delivered).