2020 GMC Sierra 3500HD AT4 "“ Duramax Diesel 4WD Heavy-Duty Truck Looking for a powerful diesel truck in Austin, TX? This 2020 GMC Sierra 3500HD AT4 delivers serious capability, bold styling, and premium truck comfort in one impressive package. Finished in Carbon Black Metallic with a Jet Black interior and Kalahari accents, this GMC Sierra 3500HD AT4 is built for drivers who need heavy-duty towing capability, 4WD confidence, and Duramax diesel power. Vehicle Highlights 2020 GMC Sierra 3500HD AT4 90,961 miles Duramax 6.6L V8 Turbodiesel 10-Speed Automatic Transmission 4WD / Four-Wheel Drive Crew Cab Carbon Black Metallic Exterior Jet Black Interior with Kalahari Accents Heavy-Duty GMC Sierra 3500HD AT4 Off-Road-Inspired Trim Duramax Diesel Power & 4WD Capability Under the hood, the Duramax 6.6L V8 Turbodiesel provides the diesel strength and torque that serious truck owners demand. Paired with a 10-speed automatic transmission and 4WD, this Sierra 3500HD AT4 is ready for demanding jobs, towing, hauling, road trips, ranch work, and off-road adventures. The Crew Cab configuration provides valuable passenger space while the AT4 trim adds a rugged, upscale personality that makes this heavy-duty truck stand out from the crowd. Why Consider This Sierra 3500HD AT4? If you're shopping for a used diesel truck near Austin, this GMC Sierra 3500HD AT4 deserves a close look. The combination of Duramax diesel power, 4WD capability, Crew Cab versatility, AT4 styling, and GMC heavy-duty engineering makes it a compelling choice for work and everyday driving. Whether you're searching for a GMC Sierra 3500HD for sale, a Duramax diesel truck, a 4WD heavy-duty pickup, or an AT4 truck near Austin, this Sierra brings the capability and presence you're looking for. Serving Austin & Central Texas Covert Ford proudly serves truck shoppers throughout Austin, Round Rock, Georgetown, Pflugerville, Cedar Park, Leander, Kyle, Buda, Lakeway, Bee Cave, Dripping Springs, Bastrop, Elgin, Hutto, Taylor, San Marcos, and surrounding Central Texas communities, plus San Antonio, New Braunfels, Schertz, Cibolo, Boerne, Seguin, and surrounding areas. Popular ZIP codes we serve include 78701, 78702, 78703, 78704, 78705, 78717, 78727, 78729, 78731, 78732, 78734, 78735, 78737, 78738, 78745, 78746, 78748, 78749, 78750, 78754, 78757, 78758, 78759, 78613, 78626, 78628, 78630, 78640, 78641, 78660, 78664, 78665, 78666, 78681, 78130, 78154, and 78006. Shop This GMC Sierra 3500HD AT4 Don't miss the opportunity to get behind the wheel of this 2020 GMC Sierra 3500HD AT4 Duramax 4WD. Get more information, check availability, and schedule your appointment at Covert Ford today. Call or visit
