2016 GMC Sierra 3500HD

The 2016 GMC Sierra HD lineup offers capability with comfort, quietness and uniquely crafted interiors. The Sierra Denali HD is the ultimate expression of the Sierra HD range, offering distinctive styling and exclusive amenities that take the truck's signature comfort and crafted interior environment to the highest level.

The Sierra 2500HD and 3500HD models - including Sierra Denali HD - are offered with the Duramax 6.6L turbo-diesel and Allison 1000 six-speed transmission, a proven powertrain combination enabling a maximum trailering rating of up to 23,200 pounds.

New for 2016, Active Steering Assist power steering on some double cab and crew cab models helps make hauling and trailering easier and more confident, with electronic controls that enhance road holding and stability on the highway regardless of whether the truck is loaded.

Regular, double cab and crew cab models are offered across the lineup. The 2500HD and 3500HD regular cab models are matched an 8-foot box, while 2500HD double cab and crew cab models are available with 6'6" or 8' boxes.

Sierra 3500HD double cab is offered exclusively with the 8' box, while 3500HD crew cabs are available with the 6'6" and 8' boxes. Dual-rear-wheel configurations are also available on 3500HD.

Gas and Duramax diesel powertrains are offered across the lineup, including a bi-fuel option that allows the gas engine to run on compressed natural gas.

The powertrains contribute to the Sierra HDs' greater payload and towing ratings than previous models, including a maximum conventional trailering rating of 20,000 pounds and a max fifth-wheel/gooseneck trailering rating of 23,200 pounds.