2014 Sierra 2500HD Crew Cab Photos, engines & full specs

The fourth generation of the Sierra was a revolution in terms of technologies and construction methods and helped GMC to cut a big chunk from Ford's F-Series slice of the market.

Built to endure the toughest conditions, pull the heaviest weights for its class, and with a hydroformed chassis, the Sierra 2500HD Crew Cab was not just a worker's tool but a family vehicle as well. By switching from the older 900 platform to the new one, named K2XX, the automaker could provide not just a better truck but also a comfortable one if fitted with the Denali package.

The front of the car showed a broad chromed grille and big squarish headlights. However, only the cover lenses were in that shape since they covered the rounded lamps and the turn signals. The pickup boasted a chromed bumper fitted with two round fog lamps on the sides, depending on the trim level and options. From its profile, the Sierra featured angular-shaped wheel arches on the enlarged front and rear fenders. At the back, the separate bed helped customers get fewer vibrations inside the cabin, increasing comfort.

Inside, the automaker offered plenty of options to choose from. The truck was provided with either cloth or leather seats. In addition, GMC installed an infotainment system that supported Bluetooth connection with the mobile phone for calls and audio. With such amenities, it seemed just normal for the driver to enjoy buttons on the steering wheel. On the rear bench seat, there was room enough for three people, with no intrusion for the transmission tunnel since it was a body-on-frame construction.

To power this heavy-duty truck, GMC used either a gasoline 6.0-liter V8 or a 6.6-liter V8 turbo-diesel. Regardless of the engine option, customers had to stick to a six-speed automatic gearbox.