2011 GMC Sierra Denali Heavy Duty

March 10th, 2010 by Arman

GMC has unveiled their new competitor for the battle of the giants! We’re talking about the 2011 GMC Sierra Denali Heavy duty which is set to head to head with Chevy Silverado and more importantly the new Ford F-150 Raptor.

So like them, the Sierra features a fabulously bold design, new chassis and suspension, 4WD system and it also get a powerful engine.

2011 GMC Sierra Denali Heavy Duty 2011 GMC Sierra Denali Heavy Duty 1

The Sierra’s 6.6-liter Duamax engine delivers 397 hp and 765 ft-lbs of torque, and comes with a 6-speed Allison transmission. This engine gives the Sierra 20,000 lb towing capability while the payload of the truck is 6,335 lb.

The new Allison transmission has also been strengthened to cope with the upgraded engine and it also features optional exhaust brake, Power Take Off and Driver Shift Control (DSC) systems. The whole powertrain is also optimized for better efficiency. The truck also features many modern safety and convenience systems such as the StabiliTrak and Trailer Sway Control, as well as Hill Start Assist.

2011 GMC Sierra Denali Heavy Duty 2011 GMC Sierra Denali Heavy Duty 2

“The new Sierra Denali HD is the latest expression of GMC’s Denali philosophy of blending capability with premium features and styling,” said Lisa Hutchinson, GMC product marketing director. “It is a premium tool that offers many comfort and infotainment features, along with a maximum towing capacity of 15,600 pounds with the segment’s most powerful diesel – that’s enough to tow a 34-foot-long, three-axle travel trailer.”

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