New & Used 2025 GMC Sierra 3500HD for Sale near Decatur, AL

## Summary - With 1,119 currently listed for sale and an **average price of $79,146.00**, 29.6% of 2025 GMC Sierra 3500HDs 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 stands out with impressive towing capacities, advanced technology, and luxurious interior options. ## Why it stands out The 2025 GMC Sierra 3500HD distinguishes itself in the heavy-duty truck market by delivering a blend of capability and luxury. Known for its remarkable towing and hauling prowess, this truck can handle substantial loads, which is especially appealing for those needing to tow trailers or haul heavy equipment. The fifth-generation model, introduced in 2020, has seen significant updates that enhance both performance and comfort. With powerful engine options including a 6.6-liter V8 and a Duramax turbodiesel, drivers can expect not just reliable performance but also efficient power tailored for heavy-duty tasks. Inside, higher trim levels offer a luxurious experience with premium materials, advanced technology features for towing and off-roading, and smart design elements that cater to comfort and functionality. However, while the Sierra 3500HD excels in many areas, some drivers might find its larger size unwieldy in parking lots, and the prices for top trims can be high compared to some competitors. ## Other model years to consider - **[2023 GMC Sierra 3500HD](https://www.cargurus.com/Cars/l-Used-2023-GMC-Sierra-3500HD-c32422)** - Average price: $58,175.00 - Good/great deal percentage: 31.7% - User rating: 5 / 5 - Total listings: 1,391 - **[2024 GMC Sierra 3500HD](https://www.cargurus.com/Cars/l-Used-2024-GMC-Sierra-3500HD-c32775)** - Average price: $69,559.00 - Good/great deal percentage: 30.6% - User rating: 5 / 5 - Total listings: 1,376 - **[2021 GMC Sierra 3500HD](https://www.cargurus.com/Cars/l-Used-2021-GMC-Sierra-3500HD-c30861)** - Average price: $53,074.00 - Good/great deal percentage: 33.5% - User rating: 5 / 5 - Total listings: 747 This analysis is based on CarGurus' proprietary market data from March 16, 2026, CarGurus experts' opinions, and generative AI.