2019 GMC Sierra HD
The GMC Sierra HD, including the 2500HD and 3500HD, is bolder than ever before. The 2019 model has up to 445 horsepower with the right powertrain, as well as maximum payload capacity of 6,112 pounds. The 3500HD can also tow up to 23,100 pounds when properly equipped. There’s an available Duramax® 6.6-liter V-8 Turbo-Diesel, an Allison 1000 six-speed automatic transmission, and available 4G LTE Wi-Fi for staying connected.