About This Vehicle

The pinnacle of GMC engineering — the 2024 Sierra 3500HD Denali Ultimate in Onyx Black. The top-of-the-line Ultimate package adds an exclusive Cognac/Dark Walnut two-tone leather interior, 22-inch alloy wheels, head-up display, and every available technology feature. Powered by the legendary 6.6L Duramax diesel, this is the most capable and most luxurious heavy-duty truck available, period.

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