This powerful 2021 GMC Sierra 3500HD AT4 is ready to take on any challenge. Equipped with a robust 6.6L V8 engine and 4-wheel drive, this truck delivers uncompromising capability and confidence on the road or off the beaten path.

- ASSIST STEPS, POWER-RETRACTABLE, BLACK with LED lighting
- GOOSENECK / 5TH WHEEL PACKAGE
- AT4 PREMIUM PLUS PACKAGE with driver assistance tech, 20 wheels, power sunroof, and more
- TRAILER TIRE PRESSURE MONITOR SENSORS
- SNOW PLOW PREP/CAMPER PACKAGE with increased GAWR and alternator

This Sierra 3500HD AT4 is loaded with premium features to elevate your driving experience. Enjoy the Bose premium audio system, wireless charging, and the advanced GMC Infotainment System with navigation. The 4.2 driver information center and 15 head-up display keep critical data right in your line of sight.

Designed for both work and play, this Sierra 3500HD AT4 offers the perfect blend of capability, technology, and comfort. The spray-on bedliner, power-retractable assist steps, and off-road suspension make it as versatile as it is capable. Plus, the ProGrade Trailering System and in-vehicle trailering app provide the tools you need to tow with confidence.

Whether you're hauling heavy loads, conquering rugged terrain, or just enjoying the open road, this 2021 GMC Sierra 3500HD AT4 is ready to take you there. Schedule a test drive today and experience the power and capability of this exceptional truck.