Used 2020 GMC Sierra 2500HD for Sale nearAustin, TX
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- [GAZ] Summit White
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 81,379
- Stock #:
- 141771
- VIN:
- 1GT49REY1MF141771
![[GAZ] Summit White 2021 GMC Sierra 2500HD Pickup Truck Four-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/07/17/00/57/2021_gmc_sierra_2500hd-pic-3131406964529751621-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)
Sponsored by Rocky Mountain Truck Stop
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
81,379 mi
$55,240
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- White
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 123,945
- Stock #:
- C361773A
- VIN:
- 1GT49NE70LF118383
Sponsored Listing
2020 GMC Sierra 2500HD
SLT Crew Cab 4WD
123,945 mi
$40,134
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Cayenne Red Tintcoat
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 93,563
- Stock #:
- BY3425
- VIN:
- 1GT49REY6MF141989
Sponsored Listing
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
93,563 mi
$54,440
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Cocoa/Dune
- Transmission:
- 6-Speed Automatic
- Mileage:
- 109,073
- Stock #:
- G696252B
- VIN:
- 1GT12SEY2KF212147
2019 GMC Sierra 2500HD
Denali Crew Cab 4WD
109,073 mi
$44,867
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White
- Fuel type:
- Biodiesel
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 113,803
- Stock #:
- 4767
- VIN:
- 1GT49REY1LF166989
-$1,000
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
113,803 mi
$47,220
$46,220
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Transmission:
- Automatic
- Mileage:
- 86,460
- Stock #:
- 288683U
- VIN:
- 1GT19PEY5MF288683
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
86,460 mi
$51,709
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 63,329
- Stock #:
- 28100
- VIN:
- 1GT49REY5MF293410
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
63,329 mi
$56,996
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Blue
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 90,828
- Stock #:
- 28400351
- VIN:
- 1GT49REY6LF163411
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
90,828 mi
$51,547
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Cayenne Red Tintcoat
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 93,563
- Stock #:
- BY3425
- VIN:
- 1GT49REY6MF141989
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
93,563 mi
$54,440
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Black
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 97,492
- Stock #:
- 281171
- VIN:
- 1GT49REYXLF281171
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
97,492 mi
$51,898
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Black (Ebony Twilight Metallic)
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 101,281
- Stock #:
- T11234A
- VIN:
- 1GT49REY0MF136867
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
101,281 mi
$50,706
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White Frost Tricoat
- Fuel type:
- Biodiesel
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 33,581
- Stock #:
- 7669
- VIN:
- 1GT49REY2MF302578
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
33,581 mi
$64,518
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 84,150
- Stock #:
- F324363
- VIN:
- 1GT49RE76LF324363
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
84,150 mi
$48,881
CarGurus Analysis:
2020 GMC Sierra 2500HD
With 144 currently listed for sale near Austin, TX and an average price of $48,134.00, 24.3% of 2020 GMC Sierras 2500HD for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 2500HD 4.86 / 5 stars.
72.2% of 2020 Sierra 2500HD models on CarGurus are accident free.
The 2020 GMC Sierra 2500HD offers multiple powertrain options, plenty of cargo space, and a luxurious Denali trim that enhances comfort and capability.
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Fuel type:
- Biodiesel
- Transmission:
- Automatic
- Mileage:
- 114,989
- Stock #:
- 152317
- VIN:
- 1GT49REY3LF152317
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
114,989 mi
$48,367
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 97,493
- Stock #:
- 2025-526
- VIN:
- 1GT49ME77MF311402
2021 GMC Sierra 2500HD
SLE Crew Cab 4WD
97,493 mi
$35,060
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White Frost Tricoat
- Fuel type:
- Biodiesel
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 28,290
- Stock #:
- 2GT3250
- VIN:
- 1GT49REY9LF253250
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
28,290 mi
$60,721
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White Frost Tricoat
- Fuel type:
- Biodiesel
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 47,029
- Stock #:
- 22730
- VIN:
- 1GT49REY7LF339477
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
47,029 mi
$56,973
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Gray (Dark Sky Metallic)
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 98,545
- Stock #:
- 281969
- VIN:
- 1GT49REY0LF281969
-$1,306
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
98,545 mi
$52,514
$51,208
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Blue
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 84,177
- Stock #:
- 15874
- VIN:
- 1GT49REY8LF152121
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
84,177 mi
$54,459
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Quartz
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 137,003
- Stock #:
- 1356
- VIN:
- 1GT49REY1LF324151
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
137,003 mi
$45,680
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Cayenne Red Tintcoat
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 70,293
- Stock #:
- 205030
- VIN:
- 1GT49REY6MF205030
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
70,293 mi
$54,786
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 64,272
- Stock #:
- 2026-193
- VIN:
- 1GT12REY6KF253275
2019 GMC Sierra 2500HD
SLT Crew Cab 4WD
64,272 mi
$50,490
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Carbon Black Metallic
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 104,435
- Stock #:
- STK341496
- VIN:
- 1GT19PEY0LF341496
2020 GMC Sierra 2500HD
AT4 Crew Cab 4WD
104,435 mi
$46,714
CarGurus Analysis: 2020 GMC Sierra 2500HD
overall
Summary
With 144 currently listed for sale near Austin, TX and an average price of $48,134.00, 24.3% of 2020 GMC Sierras 2500HD for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 2500HD 4.86 / 5 stars.
72.2% of 2020 Sierra 2500HD models on CarGurus are accident free.
The 2020 GMC Sierra 2500HD offers multiple powertrain options, plenty of cargo space, and a luxurious Denali trim that enhances comfort and capability.
Why it stands out
The 2020 GMC Sierra 2500HD distinguishes itself with its robust performance and luxury features, particularly in the Denali trim, which is designed to provide a premium experience. This heavy-duty truck is equipped with powerful V8 engine options, including a gas variant that delivers 401 horsepower and a diesel option that boasts an impressive 445 horsepower and 910 lb-ft of torque. The Sierra 2500HD is not just about power; it also offers a spacious and well-designed interior, with features like a 7-inch touchscreen infotainment system, Apple CarPlay, and Android Auto. However, while the Denali trim is loaded with features, some users have noted that the interior materials do not fully meet luxury expectations, which could be a drawback for some buyers. Overall, the Sierra 2500HD is appealing for those who need a capable workhorse that also provides comfort and advanced technology.
Other model years to consider
- Average price: $78,093.00
- Good/great deal percentage: 32.3%
- User rating: 5 / 5
- Total listings: 532
- Average price: $47,226.00
- Good/great deal percentage: 29.8%
- User rating: 5 / 5
- Total listings: 218
- Average price: $69,879.00
- Good/great deal percentage: 34.4%
- User rating: 4 / 5
- Total listings: 506
This analysis is based on CarGurus' proprietary market data from July 14, 2026, CarGurus experts' opinions, and generative AI.
4.9 Overall rating
Filter by rating
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 Double Cab 4WD | $42,600 |
| Base LB 4WD | $38,600 |
| Base Double Cab 4WD | $41,200 |
| 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.
See more price trends2020 GMC Sierra 2500HD Pricing Analysis: Austin, TX Market Report
Pricing by Nearby Locations
Market Area: Austin, TX
Key Insights
- Highest Prices in Huntsville: The market in Huntsville, TX shows the highest average price at $54,999, indicating strong demand or limited supply in that area.
- Lowest Prices in Georgetown and Killeen: Both Georgetown and Killeen have the lowest average prices at $48,685, suggesting a more competitive market or higher inventory levels.
- Moderate Price Range Across Cities: The average prices across nearby cities range from $48,685 to $54,999, reflecting a relatively stable pricing environment with minor fluctuations.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Huntsville, TX | 155 | $54,999 |
| New Braunfels, TX | 142 | $51,883 |
| Katy, TX | 153 | $50,114 |
| San Antonio, TX | 139 | $49,777 |
| Waco, TX | 152 | $49,788 |
| Conroe, TX | 154 | $47,922 |
| Georgetown, TX | 147 | $48,685 |
| Killeen, TX | 149 | $48,685 |
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2026 GMC Sierra 2500HD is priced at $85,905, which is approximately 83.5% above its MSRP, indicating strong demand for the latest model.
- Depreciation Trends: The 2019 model shows a current average price of $62,220, reflecting a depreciation of about -18.5% from its original MSRP, which is a moderate decline for a vehicle of this type.
- Best Value in Older Models: The 2015 GMC Sierra 2500HD is priced at $31,448, showing a depreciation of -5.6%, making it a potentially attractive option for budget-conscious buyers.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 | $47,000 | $85,905 | +83.5% |
| 2025 | $46,300 | $77,146 | +66.6% |
| 2024 | $45,400 | $69,765 | +53.4% |
| 2023 | $42,200 | $61,995 | +46.5% |
| 2022 | $36,200 | $53,938 | +48.9% |
| 2021 | $36,200 | $48,429 | +33.8% |
| 2019 | $38,200 | $62,220 | -18.5% |
| 2018 | $35,000 | $45,410 | +29.7% |
| 2016 | $33,535 | $33,410 | -0.4% |
| 2015 | $33,195 | $31,448 | -5.6% |
These recommendations are based on CarGurus' proprietary market data from July 16, 2026, CarGurus experts' opinions, and generative AI.
FAQs
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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.
