Summary

• With 509 currently listed for sale and an average price of $89,888.00, 31.0% of 2026 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

• 97.2% of 2026 Sierra 3500HD models on CarGurus are accident-free.

Why it stands out

The 2026 GMC Sierra 3500HD remains a leading choice in the heavy-duty truck category, primarily due to its impressive towing and hauling capabilities, which make it a versatile workhorse for both commercial and personal use. With a strong reputation for reliability and a recent emphasis on luxury in its higher trims, especially the Denali, the Sierra 3500HD could be appealing to buyers who need power but also desire comfort. The truck is capable of towing up to 35,500 pounds when properly configured, thanks to its robust engine options, including a powerful turbodiesel variant. Recent updates have introduced advanced technology features, enhancing user experience on and off the road.

Among its competitors, the Sierra 3500HD stands out for combining rugged work-oriented sensibilities with a refined driving experience, particularly in its higher-end trims. However, potential buyers should be aware that some top trims can be quite expensive, and while it excels in many areas, rival trucks from Ford and Ram may still have higher towing capacities.

Other model years to consider

• 2024 GMC Sierra 3500HD

  • Average price: $69,722.00
  • Good/great deal percentage: 31.6%
  • User rating: 5 / 5
  • Total listings: 1,362

• 2023 GMC Sierra 3500HD

  • Average price: $57,229.00
  • Good/great deal percentage: 30.7%
  • Accident-free percentage: 91.4%
  • Total listings: 1,291

• 2025 GMC Sierra 3500HD

  • Average price: $77,444.00
  • Good/great deal percentage: 30.9%
  • User rating: 5 / 5
  • Total listings: 1,238

This analysis is based on CarGurus' proprietary market data from June 8, 2026, CarGurus experts' opinions, and generative AI.