Used 2020 GMC Sierra 2500HD for Sale near Lancaster, CA
126 results
CarGurus Analysis:
2020 GMC Sierra 2500HD
With 1,309 currently listed for sale and an average price of $49,028.00, 23.0% 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 4.86 / 5 stars.
73.7% of 2020 Sierra 2500HD models on CarGurus are accident free.
The 2020 GMC Sierra 2500HD Denali features impressive power, a comfortable ride, and exceptional towing capabilities, making it a top choice in the heavy-duty truck segment.
CarGurus Analysis: 2020 GMC Sierra 2500HD
overall

Summary
With 1,309 currently listed for sale and an average price of $49,028.00, 23.0% 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 4.86 / 5 stars.
73.7% of 2020 Sierra 2500HD models on CarGurus are accident free.
The 2020 GMC Sierra 2500HD Denali features impressive power, a comfortable ride, and exceptional towing capabilities, making it a top choice in the heavy-duty truck segment.
Why it stands out
The 2020 GMC Sierra 2500HD stands out in the heavy-duty truck market thanks to its powerful engine options and luxurious Denali trim. Available with both a gas V8 and a Duramax turbo-diesel engine, this truck provides ample towing capacity, with the ability to tow up to 18,510 pounds when configured correctly. The Denali trim adds a touch of luxury with high-end features like a leather interior and advanced technology, although some critics note that its interior materials could be improved to better match its luxury status. The Sierra 2500HD also offers a variety of configurations to suit different needs, whether for work or leisure, appealing to buyers looking for both functionality and comfort. With strong user reviews emphasizing its performance and ride quality, the 2020 Sierra 2500HD remains a top contender in its class.
Other model years to consider
- Average price: $77,045.00
- Good/great deal percentage: 30.0%
- User rating: 5 / 5
- Total listings: 3,337
- Average price: $70,120.00
- Good/great deal percentage: 29.8%
- User rating: 4 / 5
- Total listings: 3,801
- Average price: $56,617.00
- Good/great deal percentage: 29.1%
- User rating: 4 / 5
- Total listings: 3,516
This analysis is based on CarGurus' proprietary market data from April 20, 2026, CarGurus experts' opinions, and generative AI.
Relevant articles

2026 GMC Sierra 2500HD Pricing, Specs, and Release Date
Aside from a freshened color palette and broader availability of the trick MultiPro Tailgate, the 2026 GMC Sierra 2500HD full-size pickup truck soldiers on as a premium workhorse capable of towing up to 20,000 pounds in luxurious style.

2025 GMC Sierra 2500HD Pricing, Specs, and Release Date
Slotted between the light-duty 1500 and the ultra-tough 3500HD, the 2025 GMC Sierra 2500HD balances immense capability with the comfort and latest amenities expected from today's truck buyers. Upgrades for 2025 include a newly standard trailer brake controller.

Who Makes GMC Cars?
GMC is an American automaker that builds premium trucks and SUVs with capability and comfort as selling points. GMC is a division of General Motors and all of its vehicles share platforms with other GM products. Certain products, like its trucks, are very closely related to Chevrolet products.
4.9 Overall rating
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Cristobal R
Reviewed a 2020 GMC Denali Crew Cab 4WD on Dec 17, 2025
Absolutely love the truck and it was at a good price for the amount of miles and condition!
David Z
Reviewed a 2020 GMC AT4 Crew Cab 4WD on Nov 19, 2025
Looks great but a little pricey for the year. Even though it has low mileage. I would buy a newer truck.
David S
Reviewed a 2020 GMC Sierra 2500HD on Dec 28, 2023
The GMC 2500 HD is the truck for me. Like all the other major brands of trucks the price is in the same range. The diesel engine and 4x4 is about good as it gets. For work or play GMC is the way!!
William A
Reviewed a 2020 GMC Sierra 2500HD on Oct 10, 2021
One of the finest tow vehicles available. Comfort, tow capacity, reliability and just all around great looking. Can’t go wrong.
2020 GMC Sierra 2500HD Trims
| Trim type | MSRP |
|---|---|
| SLE LB 4WD | $43,200 |
| SLT Double Cab 4WD | $53,800 |
| SLE Double Cab 4WD | $42,600 |
| Base Crew Cab 4WD | $43,000 |
| SLE Crew Cab 4WD | $44,400 |
| SLT Crew Cab 4WD | $55,600 |
| AT4 Crew Cab 4WD | $58,300 |
| Denali Crew Cab 4WD | $64,300 |
2020 GMC Sierra 2500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 GMC Sierra 2500HD prices has changed over time.
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