All-New Duramax 6.6L Diesel Is Our Most Powerful Ever

Posted on 29. Sep, 2016 by in GM Canada

All-New Duramax 6.6L Diesel Is Our Most Powerful Ever

Greater horsepower, torque supports some-more assured trailering on 2017 Sierra HD






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DALLAS (Thursday, Sep 29, 2016) — When it comes to horsepower from a diesel engine, a 2017 GMC Sierra HD tops a shred with an SAE-certified 445 hp (332 kW) from an all-new Duramax 6.6L V-8 turbo-diesel. And when it comes to a torque that enables free trailering and hauling, it also delivers some-more than ever: an SAE-certified net 910 lb.-ft. of torque (1,234 Nm) to make easier work of a heaviest loads. 

“GMC Sierra HD trucks and a Duramax diesel have a long-established bequest of charity business confidence-inspiring capability for a largest tasks,” pronounced Duncan Aldred, clamp boss of GMC Sales and Marketing. “With a new Duramax and additional enhancements, a 2017 Sierra HD takes a multiple of value and capability to an rare level.”

Along with a 19 percent boost in max torque over a stream Duramax 6.6L and segment-best horsepower, a redesigned turbo-diesel’s opening is quieter and smoother, for incomparable value and some-more certainty when trailering or hauling.

The new Duramax 6.6L is a next-generation redesign of a princely turbo-diesel engine and incorporates a new, GM-developed control system. The Duramax’s signature low-rpm torque prolongation hasn’t changed, charity 90 percent of arise torque during a low 1,550 rpm and nutritious it by 2,850 rpm — an charge that contributes to a Sierra HD’s assured pulling power.

A new, patent-pending car atmosphere intake complement — renowned on a Sierra HD by a confidant hood dip — drives cool, dry atmosphere into a engine for postulated opening and cooler engine temperatures during formidable conditions such as trailering on high grades. Cooler atmosphere helps a engine run softened underneath load, generally in conditions where engine and delivery temperatures can arise quickly. That allows a Duramax to say some-more energy and car speed when trailering in a toughest conditions.

Driveline enhancements were done to boost strength and raise durability, including a stronger front column missile and incomparable U-joints compared to prior Duramax-equipped Sierra HD models.

Additional highlights include:

  • New full-length, damped steel oil vessel that contributes to quietness
  • New rocker cover/fuel complement acoustical treatments
  • B20 bio-diesel compatibility
  • SAE-certified 445 net horsepower (332 kW) during 2,800 rpm
  • SAE-certified 910 net lb.-ft. of torque (1,234 Nm) during 1,600 rpm

The new Duramax 6.6L turbo-diesel engine is constructed with locally and globally sourced tools during GM’s production trickery in Moraine, Ohio. It will be accessible in a Sierra HD in early 2017.

2017 Sierra HD lineup

When it comes to delivering a capability on that GMC’s repute was forged, Sierra 2500HD and 3500HD models — including Sierra Denali HD — are offering with gas and Duramax diesel thrust systems. They capacitate a limit required trailering rating of 9,072 kilograms (20,000 lbs) and a max fifth-wheel/gooseneck trailering rating of 10,568 kilograms (23,300 lbs).

Regular, double cab and organisation cab models are offering opposite a lineup, with a reward Sierra Denali HD — a ultimate countenance of GMC’s Professional Grade ethos — offering exclusively as a organisation cab. It matches GMC’s do-it-all capability with particular styling elements, reward materials and upscale interior amenities.

Additionally, a All Terrain HD reward off-road package is a many able off-pavement model, featuring singular extraneous sum and 18-inch chrome aluminum wheels with all-terrain tires, a Z71 cessation with Rancho twin-tube shocks and more.

In further to a new Duramax 6.6L turbo-diesel engine, a 2017 Sierra HD lineup offers Teen Driver, that allows relatives to set controls, examination pushing habits and inspire protected pushing habits when they are not in a vehicle.

Additional car highlights:

  • An accessible Gooseneck/5th Wheel Trailering Prep Package creates Sierra HD models prepared to draw incomparable trailers right from a factory.
  • Digital Steering Assist energy steering on name models senses speed to capacitate palliate of doing during low speeds and softened steering feel during highway speeds. It helps make trailering easier when parking or on a road.
  • HID projector-beam headlamps with GMC-signature LED lighting is customary on all models
  • Available wireless phone charging (standard on Denali)
  • Available remote locking tailgate (standard on Denali)

About GMC in Canada

GMC has made trucks given 1902, with creation and engineering value built into all GMC vehicles. The code is elaborating to offer some-more fuel-efficient trucks and crossovers, including a Terrain tiny SUV and Acadia crossover. GMC’s highest-volume vehicle, a Sierra pickup, is a many absolute light avocation pickup on a market, and a initial full-size pickup to accept a top probable five-star Overall Vehicle Score for reserve given a U.S. National Highway Traffic Safety Administration altered a New Car Assessment Program for a 2011 indication year. Details on all GMC models are accessible during, on Twitter during @GMCCanada or during


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