GMC Sierra 1500 | The Official GMC Website
https://www.gmc.com › Sierra
AdAvailable Duramax® 3.0L Turbo Diesel, With Estimated 305 Horsepower & 495 lb-ft Torque. See the World's First 6-Function GMC MultiPro™ Tailgate, Available on the 2025 GMC Sierra.
Models: Sierra 1500 AT4, Sierra 1500 AT4X, Sierra 1500 Denali, Sierra 1500 Elevation
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