Used 2021 GMC Sierra 2500HD for Sale near Phoenix, AZ
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CarGurus Analysis:
2021 GMC Sierra 2500HD
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.
CarGurus Analysis: 2021 GMC Sierra 2500HD

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
- Average price: $82,340.00
- Good/great deal percentage: 20.6%
- User rating: 5 / 5
- Total listings: 257
- Average price: $51,505.00
- Good/great deal percentage: 12.3%
- User rating: 4.86 / 5
- Total listings: 122
- 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.
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.
5.0 Overall rating
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Allan K
Reviewed a 2021 GMC Sierra 2500HD on Jan 18, 2021
-Excellent trailering mirrors with lights, allow increased visibility when backing up at night -Engine noise is relatively quiet compared to older diesel pick ups, can order at fast food drive throughs without shutting engine off -Fuel economy is good for a vehicle of this size (I have 3500HD, not 2500HD) -Driver safety features and various camera views are very helpful -Trim version for this review is Denali, with power running boards, really not missing anything significant
Anonymous
Reviewed a 2021 GMC Sierra 2500HD on Sep 3, 2022
An absolutely beautiful pickup ! Handles & rides exceptionally well !! Nobody will regret making the decision to purchase this awesome truck .
jordyn c
Reviewed a 2021 GMC AT4 Crew Cab 4WD on Dec 4, 2023
This car is not missing nothing at all it is perfect
Kevin K
Reviewed a 2021 GMC Sierra 2500HD on Apr 21, 2022
So far we are very happy.We appreciate the options and layout
2021 GMC Sierra 2500HD Trims
| Trim type | MSRP |
|---|---|
| LB RWD | $36,200 |
| Double Cab 4WD | $41,600 |
| SLE Double Cab 4WD | $46,400 |
| Base Crew Cab 4WD | $43,400 |
| SLE Crew Cab 4WD | $48,200 |
| SLT Crew Cab 4WD | $56,200 |
| AT4 Crew Cab 4WD | $59,100 |
| Denali Crew Cab 4WD | $65,500 |
2021 GMC Sierra 2500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 GMC Sierra 2500HD prices has changed over time.
See more price trends2021 GMC Sierra 2500HD Pricing Analysis: Phoenix, AZ Market Report
Pricing by Nearby Locations
Market Area: Phoenix, AZ
Key Insights
- Highest Prices in Tucson: Tucson shows the highest average price at $68,495, likely due to higher demand for heavy-duty trucks in urban areas.
- Lowest Prices in 2015 Models in Phoenix: The lowest average price is found in Surprise at $54,710, which may indicate a greater availability or lower demand in suburban markets.
- Moderate Price Range Across Listings: Nearby cities exhibit a price range from $54,710 to $68,495, suggesting a consistent market demand for the GMC Sierra 2500HD across the region.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Tucson, AZ | 141 | $68,495 |
| Nogales, AZ | 129 | $63,995 |
| Casa Grande, AZ | 157 | $57,382 |
| Apache Junction, AZ | 172 | $55,003 |
| Surprise, AZ | 165 | $54,710 |
Pricing Analysis by Model Year
Key Insights
- Sharp Increase in Latest Model Pricing: The 2026 model commands a significant average price of $85,796, reflecting the high demand and potential scarcity of the newest models.
- Best Value in 2015 Models: The 2015 GMC Sierra 2500HD shows the steepest depreciation with an average price of $19,900, suggesting this may be an attractive option for budget-conscious buyers.
- Moderate Depreciation Through Recent Years: Models from 2022 to 2024 maintain average prices within a relatively close range to their original MSRP, suggesting stable demand for recent inventory.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 | $47,000 | $85,796 | +82.8% |
| 2025 | $46,300 | $80,358 | +73.6% |
| 2024 | $45,400 | $71,991 | +58.5% |
| 2023 | $42,200 | $51,958 | +23.2% |
| 2022 | $36,200 | $55,427 | +53.3% |
| 2020 | $35,800 | $54,226 | +51.4% |
| 2019 | $38,200 | $45,510 | +19.2% |
| 2018 | $35,000 | $33,941 | -3.0% |
| 2017 | $34,190 | $42,279 | +23.7% |
| 2016 | $33,535 | $39,069 | +16.5% |
| 2015 | $33,195 | $19,900 | -40.1% |
These recommendations are based on CarGurus' proprietary market data from May 28, 2026, CarGurus experts' opinions, and generative AI.










