2025 Denali 2025 Hd Hood. The 2025 gmc sierra 2500 hd underwent a refresh for the 2025 model year that included minor exterior changes but big changes under the hood along with increa. Under the hood, the 2025 gmc sierra hd is once again offered with the optional 6.6l v8 l5p turbodiesel duramax engine, which is now uprated at 470.

Detailed specs and features for the 2025 gmc sierra 3500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine. If your 2025 chevy traverse has dimples or indentations in the hood when it’s latched, the latch likely needs to be adjusted at the dealership to correct this.