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
$59,793
- 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:
- 2020
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Summit White
- Interior color:
- Jet Black
- Mileage:
- 100,454
- Stock #:
- LF111293A
- VIN:
- 1GT49REY8LF111293
Sponsored Listing
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
100,454 mi
$52,999
- 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
- Exterior color:
- Onyx Black
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 105,652
- Stock #:
- 104001
- VIN:
- 1GT49REY0LF104001
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
105,652 mi
$53,620
- 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:
- 65,842
- Stock #:
- 18174094
- VIN:
- 1GT49REY7MF174094
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
65,842 mi
$56,994
- 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:
- 88,265
- Stock #:
- 26T17B
- VIN:
- 1GT49PE71MF176726
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
88,265 mi
$48,762
- 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
-$1,000
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
98,545 mi
$49,859
$48,859
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 85,827
- Stock #:
- PMF264725
- VIN:
- 1GT49PEY0MF264725
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
85,827 mi
$51,810
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 111,828
- Stock #:
- T0306
- VIN:
- 1GT49NE79LF113943
2020 GMC Sierra 2500HD
SLT Crew Cab 4WD
111,828 mi
$36,121
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 360 hp 6L V8 Flex Fuel Vehicle
- Exterior color:
- Brown
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Brown (Beige)
- Transmission:
- Automatic
- Mileage:
- 158,775
- Stock #:
- 28520
- VIN:
- 1GT12REG8KF103479
2019 GMC Sierra 2500HD
SLT Crew Cab 4WD
158,775 mi
$26,447
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 60,125
- Stock #:
- T3776B
- VIN:
- 1GT49RE78MF215002
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
60,125 mi
$51,531
CarGurus Analysis:
2020 GMC Sierra 2500HD
With 1,098 currently listed for sale and an average price of $49,336.00, 29.1% 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.
73.6% of 2020 Sierra 2500HD models on CarGurus are accident free.
The 2020 GMC Sierra 2500HD is known for its powerful V8 engine options, impressive towing capacity, and a range of upscale features, particularly in the Denali trim.
- 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:
- Black
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 64,398
- Stock #:
- 70075752
- VIN:
- 1GT12SEY4KF115239
2019 GMC Sierra 2500HD
Denali Crew Cab 4WD
64,398 mi
$50,197
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Quicksilver Metallic
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 121,549
- Stock #:
- UV20703
- VIN:
- 1GT49REY0MF220851
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
121,549 mi
$49,132
- 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:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 91,787
- Stock #:
- LT0919
- VIN:
- 1GT49REY1LF230660
-$1,500
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
91,787 mi
$51,600
$50,100
- 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:
- 84,389
- Stock #:
- P6560
- VIN:
- 1GT49REY2MF239126
-$1,200
2021 GMC Sierra 2500HD
Denali Crew Cab 4WD
84,389 mi
$54,929
$53,728
- 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:
- Cardinal Red
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- 6-Speed Automatic
- Mileage:
- 63,176
- Stock #:
- 229321A
- VIN:
- 1GT49ME72MF229321
-$1,565
2021 GMC Sierra 2500HD
SLE Crew Cab 4WD
63,176 mi
$43,537
$41,972
- 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:
- 43,494
- Stock #:
- 26332A
- VIN:
- 1GT49REY6LF162999
2020 GMC Sierra 2500HD
Denali Crew Cab 4WD
43,494 mi
$60,304
- 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
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:
- 401 hp 6.6L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 94,334
- Stock #:
- 168489C01
- VIN:
- 1GT49ME78MF168489
2021 GMC Sierra 2500HD
SLE Crew Cab 4WD
94,334 mi
$37,070
- 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:
- 114,407
- Stock #:
- B0343A
- VIN:
- 1GT49PEY2MF304626
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
114,407 mi
$48,701
- 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
Sponsored Listing
2021 GMC Sierra 2500HD
AT4 Crew Cab 4WD
98,385 mi
$47,749
CarGurus Analysis: 2020 GMC Sierra 2500HD
overall
Summary
With 1,098 currently listed for sale and an average price of $49,336.00, 29.1% 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.
73.6% of 2020 Sierra 2500HD models on CarGurus are accident free.
The 2020 GMC Sierra 2500HD is known for its powerful V8 engine options, impressive towing capacity, and a range of upscale features, particularly in the Denali trim.
Why it stands out
The 2020 GMC Sierra 2500HD distinguishes itself with its robust performance and luxury features, especially in the Denali trim, which offers a unique blend of capability and comfort. With two powerful V8 engine options, including a diesel variant that delivers an impressive 445 horsepower and 910 lb-ft of torque, this truck is built for serious towing and hauling tasks. The Denali trim enhances the experience with premium materials and advanced technology, although some users have noted that the interior materials could feel less luxurious compared to competitors. The Sierra 2500HD also boasts a variety of configurations, making it versatile for both work and leisure. Its towing capacity of up to 18,510 pounds and a payload capacity of 3,979 pounds make it a top choice for those needing a heavy-duty truck. However, potential buyers should consider the higher price point, which some may find steep for the model year.
Other model years to consider
- Average price: $74,537.00
- Good/great deal percentage: 32.3%
- User rating: 5 / 5
- Total listings: 4,051
- Average price: $68,366.00
- Good/great deal percentage: 32.6%
- User rating: 4 / 5
- Total listings: 4,071
- Average price: $51,207.00
- Good/great deal percentage: 29.1%
- User rating: 5 / 5
- Total listings: 1,665
This analysis is based on CarGurus' proprietary market data from July 31, 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 |
|---|---|
| Base Double Cab 4WD | $41,200 |
| Base LB RWD | $35,800 |
| Base LB 4WD | $38,600 |
| 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.
See more price trends2020 GMC Sierra 2500HD Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Chicago: The average price in Chicago ($53,445) is the highest among the listed cities, indicating strong demand or limited supply in that market.
- Lowest Prices in Atlanta: Conversely, Atlanta ($45,905) offers the lowest average price, suggesting a more competitive market or higher inventory levels.
- Inventory Variation: Cities like Dallas (152 listings) and Chicago (146 listings) have substantial inventory, which may contribute to more stable pricing compared to cities with fewer listings.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 146 | $53,445 |
| New York, NY | 137 | $51,999 |
| Los Angeles, CA | 94 | $51,120 |
| Houston, TX | 140 | $51,607 |
| Philadelphia, PA | 148 | $47,144 |
| Washington, DC | 141 | $49,037 |
| Miami, FL | 101 | $49,888 |
| Boston, MA | 126 | $49,560 |
| Dallas, TX | 152 | $50,524 |
| Atlanta, GA | 155 | $45,905 |
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2026 model is priced at $82,895, reflecting a 76.5% increase over its original MSRP, indicating strong demand for the latest models.
- Depreciation Trends: Older models, particularly the 2014 Sierra 2500HD, show a steep decline in value, priced at $23,941, which is -23.5% compared to its original MSRP.
- Best Value Years: The 2019 model is priced at $40,127, showing a modest depreciation of -4.2%, making it a potentially attractive option for buyers seeking value.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 | $47,000 | $82,895 | +76.5% |
| 2025 | $46,300 | $74,128 | +60.1% |
| 2024 | $45,400 | $67,963 | +49.7% |
| 2023 | $42,200 | $55,324 | +31.1% |
| 2022 | $36,200 | $51,610 | +42.6% |
| 2021 | $36,200 | $50,834 | +40.4% |
| 2019 | $38,200 | $40,127 | -4.2% |
| 2018 | $35,000 | $38,502 | +10.7% |
| 2017 | $34,190 | $36,130 | +5.7% |
| 2016 | $33,535 | $32,760 | -2.3% |
| 2015 | $33,195 | $28,424 | -14.3% |
| 2014 | $31,310 | $23,941 | -23.5% |
These recommendations are based on CarGurus' proprietary market data from July 30, 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.
