|Vertical red recovery hooks||Standard 5.3-liter EcoTec3 V8 engine with Dynamic Fuel Management||Available wireless smartphone charging pad|
|Jet Black Interior with Kalahari accents||8-speed automatic transmission||Available Premium GMC Infotainment System with Navigation|
|High-intensity LED headlamps with unique C-shape lighting||420 max horsepower||Available Bose® Premium Sound System|
|18-inch 6-spoke machined aluminum wheels with dark grey accents||9,400 pounds of maximum towing||Apple CarPlay™ and Android Auto™|
2019 GMC Sierra AT4 Design Features and SpecsThe 4WD GMC Sierra AT4 is powered by a standard 5.3-liter EcoTec3 V8 engine with Dynamic Fuel Management. This engine paired with an 8-speed automatic transmission generates a 355 horsepower and 383 pound-feet of torque. For more power drivers can opt for the available 420-horsepower 6.2-liter V8 engine with Dynamic Fuel Management or the 3.0-liter Duramax Turbo Diesel inline 6-cylinder engine. Both of these engines are paired with an all-new 10-speed automatic transmission.The 2019 GMC Sierra AT4 allows drivers to confidently take on every road or trail with its suite of standard performance and technology features. Not only does the 2-inch suspension lift add to the aggressive look of the Sierra AT4 but it also improves the off-road capability of this pickup with improved departure and approach angles. The standard all-terrain tires and 18-inch wheels let drivers tackle everything in their path, whether they're on the road or off.Tinted black chrome fog lamp surrounds, dark-finish detailing, AT4 badging, and more add the rugged and dominating exterior of this GMC pickup. LED fog lamps, taillights, and headlamps make traveling in any conditions as easy as ever. The Six-Function MultiPro™ Tailgate provides drivers with the most innovative rear tailgate yet. The six different functionalities of this tailgate let you tackle any project quicker than ever before.