Look closely at the 2018 GMC Sierra HD 3500 Denali pictured above. Do you see anything new or different from the 2017 model? An observant eye will notice that the truck is sporting a new grille design. The changes a subtle, but new grille clearly differentiates the Denali version from all of the other heavy duty trucks from GMC.
The new grille design falls inline with the other GMC trucks, specifically the Sierra 1500 Denali. The big truck can still be had with the latest 6.6L Duramax turbo-diesel V8 with 445 hp and 910 lb-ft of torque.
The 2018 Sierra HD Denali will be available in “late summer of 2017”, according to GMC.
GMC has been on a roll recently. The updated look of this heavy duty Denali follows a recent announcement about the 2018 GMC Yukon Denali (and Yukon XL Denali). The big SUVs get another version of the Denali grille and a 10-speed automatic transmission to go along with the 6.2L EcoTec3 V8.
Here is our first tow review of the 2017 GMC Sierra HD Denali.