Used GMC Sierra 2500HD for Sale near Allentown, PA

Summary

• With 1,503 currently listed for sale on CarGurus and an average price of $50,599.50, 34.6% of 2020 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
• Favorably reviewed: Owners rated the 2020 GMC Sierra 2500HD 4.9 / 5 stars and CarGurus experts gave it an 8.2 / 10.
• 73.9% of 2020 Sierra 2500HD models on CarGurus are accident free.
• The 2020 GMC Sierra 2500HD featured advanced technology like the MultiPro tailgate, enhancing versatility and convenience for any job.

Why it stands out

The GMC Sierra 2500HD stands out in the heavy-duty truck segment with its luxurious Denali trim, which elevates both comfort and technology to premium levels. It features a robust lineup of powerful engines, including the renowned Duramax diesel option, ensuring exceptional towing capabilities alongside upscale amenities like a Bose audio system and advanced connectivity options. With a focus on craftsmanship and a distinctive professional-grade identity, the Sierra 2500HD seamlessly combines rugged performance with refined luxury.

Other model years to consider

The GMC Sierra 2500HD model years 2021 and 2019 present excellent alternatives for buyers seeking value and user satisfaction. The 2021 model, priced at an average of $51,952.12 with a user rating of 4.7/5, offers a strong balance between affordability and quality. Similarly, the 2019 model is priced even lower at an average of $42,157.94 while achieving a perfect user rating of 5/5, highlighting its high level of user satisfaction and positioning it as a cost-effective choice in the market. Both years maintain a substantial percentage of good/great deals, ensuring that potential buyers can find favorable options within their budget.

Model years to approach with caution

When considering the GMC Sierra 2500HD across various model years, the standout options appear to be from 2007 and 2002, both of which have garnered high user ratings and relatively fewer not-good/great deal indicators. These years are often viewed favorably by users for their reliability and performance, making them more suitable in the marketplace.

In contrast, more recent models such as those from 2013 and 2017 have received lower user ratings and a significant portion of deals classified as less favorable, suggesting that buyers may want to approach these years with moderate caution due to shifting user feedback patterns and value considerations.

These recommendations are based on CarGurus' proprietary market data from December 9, 2025, CarGurus experts' opinions, and generative AI.