The Duramax diesel is a series of diesel engines manufactured by General Motors. Here's a breakdown of the generations over ...

The 6.6 Duramax and 6.7 Power Stroke are two engines powering some of the most well-known pickups in the country, but how do ...

A truck brand based around professional grade performance, the 2006 GMC Sierra 2500HD receives strengthened diesel power. The Duramax 6.6-liter turbocharged diesel engine is radically upgraded for ...

This has become a season for heavy-duty trucks, with GMC ... The Sierra HD goes on sale in early 2023, with the AT4X following later in the year. It competes with the Chevrolet Silverado 2500HD ...

The 2024 GMC Sierra 2500HD has done just that by pumping the power of its 6.6-liter Duramax turbo-diesel up to 470 horsepower and 975 lb-ft of torque, which gives its Crew Cab configuration a best ...