Gmc 2024 Sierra 2024 At4. The base model of the 2024 gmc sierra 2500hd has an msrp of $47,395, but the average price paid is $46,029 based on 644 transactions from the past 20 weeks. Gmc is unveiling the 2024 sierra heavy duty and the first ever 2024 sierra hd denali ultimate, redefining the power and capability of this dominating truck.

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