2024 Gmc At4 2024 Diesel. The 2024 gmc sierra at4x will receive the new 3.0l i6 lz0 turbodiesel duramax as its standard engine, with the current 6.2l v8 l87 gasoline engine as optional. Not many extra options (5th wheel prep, bed mat, cover, etc.), it.
The big news is the duramax diesel engine, with is surprisingly smooth and quiet. View detailed specs, features and options for the 2024 gmc sierra 1500 4wd crew cab 147 at4 at u.s.