Discover the ultimate off-road companion in this 2020 GMC Sierra 3500HD AT4. Engineered to conquer the toughest terrain, this rugged truck is equipped with a powerful Duramax 6.6L V8 Turbodiesel engine mated to a smooth-shifting 10-speed automatic transmission and robust 4WD system.- Durable and capable features:- SUNROOF, POWER- TECHNOLOGY PACKAGE- ENGINE BLOCK HEATER- ALTERNATOR, 220 AMPS- AT4 PREMIUM PACKAGE- DRIVER ALERT PACKAGE II- HIGH IDLE SWITCH- LPO, FRONT AND REAR MOLDED SPLASH GUARDS, BLACKThis Sierra 3500HD AT4 is outfitted with premium amenities and advanced technologies to elevate your driving experience. Indulge in the comfort of heated and ventilated front seats, a heated steering wheel, and a Bose premium audio system. Stay connected with the latest infotainment features, including a multicolor 15 head-up display, wireless charging, and 4G LTE Wi-Fi hotspot capability.Designed to tackle the toughest jobs, the Sierra 3500HD AT4 offers impressive capability with features like an off-road suspension, 220-amp alternator, engine block heater, and spray-on bedliner. The ProGrade Trailering System and integrated trailer brake controller make towing a breeze.Experience the ultimate fusion of power, technology, and off-road prowess in this 2020 GMC Sierra 3500HD AT4. Schedule a test drive today and discover the true meaning of confidence behind the wheel.