Summary

• With 545 currently listed for sale and an average price of $86,420.00, 29.9% of 2026 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

• 97.1% 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 is a standout in the heavy-duty truck segment, combining robust performance with a touch of luxury. Its impressive towing capacity, which can reach up to 35,500 pounds when properly equipped, makes it a top choice for those needing serious hauling power. The Sierra 3500HD has evolved from its work truck roots to offer a more refined driving experience, especially in higher trims like the Denali, which features premium materials and advanced technology. The truck's versatility is enhanced by various cab and bed configurations, allowing buyers to tailor it to their specific needs. While it excels in many areas, potential buyers should be aware that its larger size can make maneuvering in tight spaces a challenge, and top-tier models can come with a hefty price tag.

Other model years to consider

• 2024 GMC Sierra 3500HD

  • Average price: $69,179.00
  • Good/great deal percentage: 29.3%
  • User rating: 5 / 5
  • Total listings: 1,230

• 2025 GMC Sierra 3500HD

  • Average price: $76,670.00
  • Good/great deal percentage: 28.7%
  • User rating: 5 / 5
  • Total listings: 1,179

• 2023 GMC Sierra 3500HD

  • Average price: $56,470.00
  • Good/great deal percentage: 27.4%
  • Total listings: 1,144

This analysis is based on CarGurus' proprietary market data from July 20, 2026, CarGurus experts' opinions, and generative AI.