New & Used 2025 GMC Sierra 3500HD for Sale near Georgetown, CO

## Summary - With 1,095 currently listed for sale on CarGurus and an **average price of $79,821.00**, 29.3% of 2025 GMC Sierra 3500HD models for sale on CarGurus are rated as good or great deals. - **95.6% of 2025 Sierra 3500HD models on CarGurus are accident free**. - The 2025 GMC Sierra 3500HD continues its legacy as a powerful heavy-duty truck, known for its impressive towing and hauling capabilities, as well as featuring a more refined and luxurious interior, particularly in its higher-end trims like the Denali. ## Why it stands out The 2025 GMC Sierra 3500HD stands out in the heavy-duty truck segment for its unique blend of robust capability and premium features. This model offers a choice between a powerful 6.6-liter V8 engine and an even more capable Duramax turbodiesel option, enabling it to tow up to 35,500 pounds when properly equipped. The Sierra 3500HD is designed with a range of cab and bed configurations, catering to various needs whether for work or leisure. The Denali trim further elevates the driving experience with high-end materials, advanced tech features, and luxurious comfort. One area where it may not lead is in agility; its larger size can make maneuvering in tighter spaces challenging compared to its competitors. However, for buyers needing serious hauling power combined with upscale amenities, the 2025 Sierra 3500HD is a compelling choice. ## Other model years to consider - **[2023 GMC Sierra 3500HD](https://www.cargurus.com/Cars/l-Used-2023-GMC-Sierra-3500HD-c32422)** - Average price: $58,281.00 - Good/great deal percentage: 31.6% - User rating: 5 / 5 - Total listings: 1,451 - **[2024 GMC Sierra 3500HD](https://www.cargurus.com/Cars/l-Used-2024-GMC-Sierra-3500HD-c32775)** - Average price: $69,461.00 - Good/great deal percentage: 30.0% - User rating: 5 / 5 - Total listings: 1,402 - **[2021 GMC Sierra 3500HD](https://www.cargurus.com/Cars/l-Used-2021-GMC-Sierra-3500HD-c30861)** - Average price: $53,654.00 - Good/great deal percentage: 36.4% - User rating: 5 / 5 - Total listings: 799 This analysis is based on CarGurus' proprietary market data from February 17, 2026, CarGurus experts' opinions, and generative AI.