2024 Duramax Turbo. This refined engine is perfect for work and play and offers increased power, towing. The at4x, gmc’s most capable and rugged trim, is.

General motors announced a revised, more powerful version of the 6.6l duramax diesel for the updated 2024 model year gmc sierra and chevrolet silverado hd. The new engine, mated to the 10l1000 10 speed automatic transmission,.