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Used 2021 GMC Sierra 2500HD for Sale near Phoenix, AZ

159 results

CarGurus Analysis:

2021 GMC Sierra 2500HD

5.0

  • With 153 currently listed for sale near Phoenix, AZ and an average price of $51,391.00, 19.0% of 2021 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 GMC Sierra 2500HD 5 / 5 stars.

  • 77.8% of 2021 Sierra 2500HD models on CarGurus are accident free.

  • The 2021 GMC Sierra 2500HD impresses with its upscale design and advanced technology features, positioning itself as a strong competitor in the heavy-duty truck segment.

Research summarized using AI

 

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CarGurus Analysis: 2021 GMC Sierra 2500HD

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Summary

  • With 153 currently listed for sale near Phoenix, AZ and an average price of $51,391.00, 19.0% of 2021 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.

  • Favorably reviewed: Owners rated the 2021 GMC Sierra 2500HD 5 / 5 stars.

  • 77.8% of 2021 Sierra 2500HD models on CarGurus are accident free.

  • The 2021 GMC Sierra 2500HD impresses with its upscale design and advanced technology features, positioning itself as a strong competitor in the heavy-duty truck segment.

Why it stands out

The 2021 GMC Sierra 2500HD is a standout heavy-duty truck that combines capability with luxury and modern tech. Notable for its robust engine options, including a powerful Duramax diesel V8, the Sierra 2500HD offers impressive towing capacity and is praised for its smooth ride, a major benefit when hauling heavy loads. The GMC truck is designed with comfort in mind, providing a quality interior that rivals some light-duty pickups. Features like the innovative MultiPro tailgate and a user-friendly infotainment system enhance usability and convenience, making it appealing for buyers who demand both performance and luxury. Additionally, the model maintains a strong reputation for reliability, particularly in its more recent model years.

Other model years to consider

  • 2025 GMC Sierra 2500HD

    • Average price: $82,340.00
    • Good/great deal percentage: 20.6%
    • User rating: 5 / 5
    • Total listings: 257
  • 2020 GMC Sierra 2500HD

    • Average price: $51,505.00
    • Good/great deal percentage: 12.3%
    • User rating: 4.86 / 5
    • Total listings: 122
  • 2024 GMC Sierra 2500HD

    • Average price: $72,743.00
    • Good/great deal percentage: 22.7%
    • User rating: 4 / 5
    • Total listings: 264

This analysis is based on CarGurus' proprietary market data from June 2, 2026, CarGurus experts' opinions, and generative AI.

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