The 2020 GMC Sierra 1500 AT4 took a bit of engineering magic to fit the new powerplant under the hood, but GM's 3.0L inline-six Duramax diesel has finally met the Sierra 1500 AT4. The engine comes ...
The 2021 GMC Sierra Diesel 1500 will receive a $1,500 price reduction, GM Authority has learned. Effective September 3 rd, 2020, the change in MSRP will also apply for in-stock and in-transit units of ...
Before Sierra became a full-size truck model of its own in 1988, the name was used to describe an available trim on other GMC trucks. The GMC Sierra has done well in sales despite stiff competition ...
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