Summary

• With 1,238 currently listed for sale and an average price of $77,444.00, 30.9% 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.

• 95.6% of 2025 Sierra 3500HD models on CarGurus are accident free.

Why it stands out

The 2025 GMC Sierra 3500HD remains a standout choice in the heavy-duty truck segment, combining exceptional towing capability with a more refined and luxurious driving experience compared to its competitors. With a maximum towing capacity of up to 35,500 pounds, dependent on the configuration, and powerful engine options, including a 6.6-liter Duramax turbodiesel V8 that delivers 445 horsepower and an impressive 910 lb-ft of torque, it earns its place as a genuine workhorse. The 2025 model continues to incorporate advanced technology for both towing and infotainment, making it more user-friendly for everyday use while retaining its "commercial grade" toughness that has appealed to buyers over the years. Additionally, the accident-free percentage is notably high at 95.6%, which enhances its appeal among buyers looking for reliability. However, potential buyers should note that while it offers great features and capabilities, some rivals can tow more, and higher trim levels can be considerably expensive.

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

• 2021 GMC Sierra 3500HD

  • Average price: $52,109.00
  • Good/great deal percentage: 29.7%
  • User rating: 5 / 5
  • Total listings: 691

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