Summary

• With 138 currently listed for sale near Seattle, WA and an average price of $58,997.00, 20.3% of 2023 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

• 94.2% of 2023 Sierra 3500HD models on CarGurus are accident free.

• The 2023 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 2023 GMC Sierra 3500HD continues to build on its legacy as a robust heavy-duty truck, offering a blend of capability and luxury that appeals to a wide range of buyers. 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 power. The fifth-generation model has seen significant improvements in technology and comfort, making it a more refined option compared to its predecessors. Notably, the luxurious Denali trim offers premium features such as a Bose audio system, advanced safety technologies, and a high-quality interior that rivals many luxury vehicles. While it excels in many areas, potential buyers should be aware that the top trims can be quite expensive, and parking in tight spaces may be challenging due to its size.

Other model years to consider

• 2024 GMC Sierra 3500HD

  • Average price: $67,623.00
  • Good/great deal percentage: 21.3%
  • User rating: 5 / 5
  • Total listings: 155

• 2025 GMC Sierra 3500HD

  • Average price: $73,532.00
  • Good/great deal percentage: 18.0%
  • User rating: 5 / 5
  • Total listings: 161

• 2021 GMC Sierra 3500HD

  • Average price: $51,769.00
  • Good/great deal percentage: 26.9%
  • User rating: 5 / 5
  • Total listings: 67

This analysis is based on CarGurus' proprietary market data from July 14, 2026, CarGurus experts' opinions, and generative AI.