Summary

• With 533 currently listed for sale and an average price of $87,158.00, 30.8% of 2026 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

• 97.0% of 2026 Sierra 3500HD models on CarGurus are accident free.

• The 2026 GMC Sierra 3500HD is known for its impressive towing and hauling capabilities, luxurious higher trim levels, and smart tech features for towing and off-roading.

Why it stands out

The 2026 GMC Sierra 3500HD continues to build on its legacy as a robust heavy-duty truck, offering a blend of power, luxury, and advanced technology. With a maximum towing capacity of up to 35,500 pounds when properly equipped, it stands out in its class for those needing serious hauling capabilities. The Sierra 3500HD is particularly appealing to buyers looking for a refined driving experience, especially in the higher-end Denali trims, which feature premium materials and advanced infotainment systems. While it excels in performance and comfort, potential buyers should be aware that its larger size can make it unwieldy in tight spaces, and top trims can come with a hefty price tag. Overall, the Sierra 3500HD remains a top choice for those seeking a capable and luxurious heavy-duty truck.

Other model years to consider

• 2024 GMC Sierra 3500HD

  • Average price: $69,246.00
  • Good/great deal percentage: 33.1%
  • User rating: 5 / 5
  • Total listings: 1,346

• 2023 GMC Sierra 3500HD

  • Average price: $56,908.00
  • Good/great deal percentage: 33.2%
  • Accident-free percentage: 91.1%
  • Total listings: 1,273

• 2021 GMC Sierra 3500HD

  • Average price: $52,507.00
  • Good/great deal percentage: 31.8%
  • User rating: 5 / 5
  • Total listings: 721

This analysis is based on CarGurus' proprietary market data from July 6, 2026, CarGurus experts' opinions, and generative AI.