Used 2020 GMC Sierra 2500HD for Sale near Alabama
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
- Engine:
- 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 73,448
- Stock #:
- 69541A
- VIN:
- 1GT49REY1MF295980
Sponsored by Bill Smith Buick GMC
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
73,448 mi
$60,311
- 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:
- Red
- Fuel type:
- Biodiesel
- Transmission:
- Automatic
- Mileage:
- 183,383
- Stock #:
- 107660
- VIN:
- 1GT49NEYXLF107660
Sponsored Listing
2020 GMC Sierra 2500HD
SLT Crew Cab 4WD
183,383 mi
$38,498
- 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:
- 77,703
- Stock #:
- 149999
- VIN:
- 1GT49REY7LF149999
Sponsored Listing
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
77,703 mi
$57,395
- 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:
- 65,252
- Stock #:
- P15137
- VIN:
- 1GT49REY4MF135074
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
65,252 mi
$56,499
- 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:
- 139,541
- Stock #:
- 15463
- VIN:
- 1GT49REY8LF155813
-$3,119
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
139,541 mi
$45,276
$42,157
- 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
$48,104
- 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
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 103,111
- Stock #:
- 2673766667
- VIN:
- 1GT49LE75LF165445
2020 GMC Sierra 2500HD
Base Crew Cab 4WD
103,111 mi
$29,794
- 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:
- Summit White Gaz
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black W/Kalahari Accents Hvd
- Transmission:
- Automatic
- Mileage:
- 53,024
- Stock #:
- B17167
- VIN:
- 1GT49PEY0LF265193
2020 GMC Sierra 2500HD
AT4 Crew Cab 4WD
53,024 mi
$56,303
- 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
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 98,385
- Stock #:
- HP23199A
- VIN:
- 1GT49PEY0MF309551
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
98,385 mi
$47,749
- 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
$46,663
$45,663
- 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
$52,205
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Carbon Black Metallic
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 105,652
- Stock #:
- 104001
- VIN:
- 1GT49REY0LF104001
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
105,652 mi
$53,610
- 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
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 56,160
- Stock #:
- 235145B
- VIN:
- 1GT49PEY2MF235145
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
56,160 mi
$59,605
CarGurus Analysis:
2020 GMC Sierra 2500HD
With 1,130 currently listed for sale and an average price of $49,344.00, 29.7% 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 offers multiple powertrain options, including a powerful diesel engine, and is known for its impressive towing capabilities and spacious cargo area.
- 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
$51,665
$50,359
- 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:
- 133,584
- Stock #:
- 229050
- VIN:
- 1GT49REY2LF229050
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
133,584 mi
$45,248
- 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
$59,776
- 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:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 6-Speed Automatic
- Mileage:
- 76,196
- Stock #:
- P226439X
- VIN:
- 1GT49PE78MF226439
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
76,196 mi
$48,671
- 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:
- Silver
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- 6-Speed Automatic
- Mileage:
- 128,486
- Stock #:
- 124067
- VIN:
- 1GT49RE78MF124067
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
128,486 mi
$45,598
- 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:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 57,568
- Stock #:
- MX4334
- VIN:
- 1GT49REY3LF208725
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
57,568 mi
$53,980
- 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 (Dark Sky Metallic)
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 96,854
- Stock #:
- 3024282
- VIN:
- 1GT19ME71LF166617
2020 GMC Sierra 2500HD
SLE Crew Cab 4WD
96,854 mi
$35,922
- 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:
- 71,606
- Stock #:
- ZC26152
- VIN:
- 1GT19PEY1MF273761
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
71,606 mi
$51,082
- 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
$35,520
- 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:
- 65,252
- Stock #:
- P15137
- VIN:
- 1GT49REY4MF135074
Sponsored Listing
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
65,252 mi
$56,499
CarGurus Analysis: 2020 GMC Sierra 2500HD
overall
Summary
With 1,130 currently listed for sale and an average price of $49,344.00, 29.7% 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 offers multiple powertrain options, including a powerful diesel engine, and is known for its impressive towing capabilities and spacious cargo area.
Why it stands out
The 2020 GMC Sierra 2500HD distinguishes itself in the heavy-duty truck segment with its blend of capability and luxury, particularly in the Denali trim. This model is equipped with two robust V8 engine options, providing up to 445 horsepower and 910 lb-ft of torque, making it a powerhouse for towing and hauling. The Denali trim adds upscale features, including a full leather interior and advanced technology, although some users have noted that the interior materials could feel less premium compared to competitors. The Sierra 2500HD is designed for serious work, with a maximum towing capacity of 18,510 pounds and a payload capacity of 3,979 pounds, making it an excellent choice for those needing a reliable workhorse. Additionally, the truck's safety features, including multiple cameras and parking sensors, enhance its usability in various driving conditions.
Other model years to consider
- Average price: $75,065.00
- Good/great deal percentage: 33.0%
- User rating: 5 / 5
- Total listings: 3,984
- Average price: $68,857.00
- Good/great deal percentage: 33.3%
- User rating: 4 / 5
- Total listings: 4,051
- Average price: $51,056.00
- Good/great deal percentage: 30.8%
- User rating: 5 / 5
- Total listings: 1,693
This analysis is based on CarGurus' proprietary market data from July 20, 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
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in New York: The New York, NY market commands the highest average price at $52,855, likely due to higher demand and limited inventory.
- Lowest Prices in 2014 Sierra: The Washington, DC area offers the lowest average price at $46,011, indicating a more price-sensitive market or higher inventory turnover.
- Inventory Variation: Cities like Chicago (174 listings) and Philadelphia (175 listings) have substantial inventory, which may contribute to more stable pricing around the regional average.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| New York, NY | 156 | $52,855 |
| Chicago, IL | 174 | $52,659 |
| Houston, TX | 152 | $50,656 |
| Philadelphia, PA | 175 | $47,272 |
| Los Angeles, CA | 106 | $47,245 |
| Dallas, TX | 163 | $48,377 |
| Miami, FL | 125 | $50,844 |
| Atlanta, GA | 171 | $50,258 |
| Boston, MA | 140 | $49,237 |
| Washington, DC | 167 | $46,011 |
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2026 GMC Sierra 2500HD is priced at $82,689, which is approximately 76.5% above its MSRP, indicating strong demand for the latest model.
- Depreciation Trends: The 2014 model shows the steepest depreciation, with an average price of $23,987, reflecting a decline of -23.5% from its original MSRP.
- Best Value Years: The 2022 and 2023 models present a balance of recent features and lower depreciation, priced at $52,329 and $56,033, respectively, with depreciation rates of -0.8% and -1.4%.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 | $47,000 | $82,689 | +76.5% |
| 2025 | $46,300 | $74,887 | +61.8% |
| 2024 | $45,400 | $68,411 | +50.6% |
| 2023 | $42,200 | $56,033 | +32.8% |
| 2022 | $36,200 | $52,329 | +44.6% |
| 2021 | $36,200 | $50,541 | +39.5% |
| 2019 | $38,200 | $39,859 | +4.3% |
| 2018 | $35,000 | $38,832 | +11.1% |
| 2017 | $34,190 | $36,278 | +6.1% |
| 2016 | $33,535 | $32,609 | -2.8% |
| 2015 | $33,195 | $29,567 | -11.1% |
| 2014 | $31,310 | $23,987 | -23.5% |
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.
