2021 GMC Sierra 3500HD AT4 Duramax P9392
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YouTubeOriginal Kia Red Deer
2021 GMC Sierra 3500HD AT4 Duramax P9392
The 2021 GMC Sierra 3500HD AT4 Duramax is built to handle the toughest jobs while keeping comfort and technology at the forefront. Under the hood, it’s powered by a 6.6L Duramax Turbo-Diesel V8 paired with the Allison 10-speed automatic transmission, delivering outstanding strength and reliability. With impressive towing capability of up to ...
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