New 2024 Gmc Sierra 2024 Hd Denali Ultimate. These duramax power increases come courtesy of a new more efficient turbocharger, new cylinder heads with improved cooling, new higher pressure fuel injectors,. The gmc sierra hd arrives for 2024 with a redesigned look, extra capability, a deluxe new denali ultimate trim, and much more.

The 2024 gmc sierra hd denali ultimate, refreshed for the 2024 model year, is gmc’s most premium, luxurious and technologically advanced truck yet. The denali trim moves to second place in the sierra hd’s hierarchy for the 2024 model year with the introduction of the new denali ultimate trim, available for both the 2500 and 3500.