2015 GMC Sierra 2500/3500HD Specifications
The 2015 Sierra HD pickups feature an all-new exterior designed to reduce wind noise and enhance powertrain cooling for more consistent performance.
The new models also sport an all-new interior that is quiet and comfortable, with ample storage for work or travel and the intuitive connectivity of IntelliLink.
Customers can chose from gasoline, CNG or diesel power, including the legendary Duramax turbodiesel and Allison transmission.
GM says the refinements now give the 2015 Sierra 3500HD class-leading available payload and conventional towing numbers.
To see detail specifications on both 2500 and 3500 GMC HDs, click the links below.
