Summary

• With 1,183 currently listed for sale and an average price of $50,000.00, 30.1% of 2025 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

• Favorably reviewed: Owners rated the 2025 GMC Sierra 3500HD 5 / 5 stars.

• 95.7% of 2025 Sierra 3500HD models on CarGurus are accident free.

Why it stands out

The 2025 GMC Sierra 3500HD is a standout in the heavy-duty truck segment, known for its impressive towing and hauling capabilities, making it a reliable choice for both work and leisure. With a robust design that has evolved over decades, the Sierra 3500HD combines traditional work truck sensibilities with modern luxury, especially in its higher trims like the Denali. This model offers a range of powerful engine options, including a 6.6-liter Duramax turbodiesel V8 that delivers exceptional torque, making it capable of towing up to 35,500 pounds when properly equipped. The interior is designed for comfort and convenience, featuring advanced technology and safety features that enhance the driving experience. While it excels in performance and luxury, potential buyers should be aware that the top trims can be quite expensive, and the truck's size may pose challenges in urban environments.

Other model years to consider

• 2024 GMC Sierra 3500HD

  • Average price: $50,000.00
  • Good/great deal percentage: 29.9%
  • User rating: 5 / 5
  • Total listings: 1,245

• 2023 GMC Sierra 3500HD

  • Average price: $50,000.00
  • Good/great deal percentage: 29.4%
  • Accident-free percentage: 90.5%
  • Total listings: 1,153

• 2021 GMC Sierra 3500HD

  • Average price: $50,000.00
  • Good/great deal percentage: 29.9%
  • User rating: 5 / 5
  • Total listings: 665

This analysis is based on CarGurus' proprietary market data from July 27, 2026, CarGurus experts' opinions, and generative AI.