2024 Gmc Denali Ultimate 2024 Dually. 2024 gmc sierra 2500hd and 3500hd pickup trucks equipped with the denali ultimate trim are the only truck in gmc’s lineup that come standard with the 6.6l l5p duramax diesel engine, producing 470. This particular truck is a 2024 gmc sierra hd in the crew cab, long bed configuration.

It’s finished in the luxurious denali trim level and features the dual rear wheel. 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 models.