2025 Duramax Diesel Specs. Take a look at what has changed, and the other features and new front end styling. Engine hierarchy and pricing vary by model, and in other trims the duramax is the penultimate option.
The 2025 gmc sierra 1500 looks as sharp as a drywall knife, with. General motors announced a revised, more powerful version of the 6.6l duramax diesel for the updated 2025 model year gmc sierra and chevrolet.