2020 GMC Sierra Heavy Duty Reveal
Trucks are designed to work and the 2020 GMC Sierra Heavy Duty lineup has a laser focus on towing.
The 2020 GMC Sierra HD family of pickup trucks is larger with more chrome, more lights, and more tech than before.
Hauling—whether it's a trailer, boat, or load of bricks—starts with power.
GMC didn't fully outline the new HD's powertrain lineup, but confirmed the Duramax 6.6-liter turbodiesel V-8 will return with 445 horsepower and 910 pound-feet of torque, which is now paired with an Allison 10-speed automatic transmission.
Rear-wheel drive will be standard while four-wheel drive will be available.
A gas-powered engine wasn't detailed, but likely will be offered.
Full capabilities will be laid out closer to this summer, when the truck goes on sale, but GMC said the new HD lineup will be capable of tugging over 30,000 pounds when properly equipped.
To be the HD towing king it'll need to beat the 2019 Ram Heavy Duty's max tow rating of 35,100 pounds.