Duramax Diesel

Here's what you need to know about the 2021 GMC Sierra 1500 getting an 3.0L Turbo-Diesel inline-six all-new Duramax® engine:

Power Where You Need It

The Duramax® turbo-diesel option features a best-in-class horsepower rating of 277, as well as an incredible 460 lb-ft of torque. That amount of power allows the diesel engine to carry a max payload of 1,830 pounds and tow up to a massive 9,100 pounds when properly equipped. Driving the Sierra 1500, you won't have to leave anything behind the next time you load up your pickup with the Duramax® engine.

Efficiency Without Compromise

Every detail in the Duramax® turbo-diesel engine has been engineered to optimize fuel economy. Rated at 23 mpg in the city and 30 mpg on the highway, with a combined rating of 26 mpg.* When equipped with four-wheel drive, this rating drops slightly, producing even better traction and control on the road. With a lightweight aluminum alloy construction and Active Thermal Management, drivers benefit from outstanding efficiency, without compromising performance.

Experience An All-New Transmission

A new engine like the Duramax® Turbo-Diesel deserves an all-new transmission. Drivers who opt for the diesel engine will also experience a 10-speed automatic transmission, designed to work in the unique Tow/Haul Mode to reduce brake pad wear and give drivers more control over their cargo. This new 10-speed transmission also shifts seamlessly without jarring jerks or stalls, allowing drivers to tow in confidence.



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