New & Used 2026 GMC Sierra 2500HD for Sale nearOneco, CT
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Alpine Umber
- Transmission:
- Automatic
- Mileage:
- 8,079
- Stock #:
- GM3832
- VIN:
- 1GT1UXEY4SF342390
-$2,000
Sponsored by McGovern GMC
2025 GMC Sierra 2500HD
Denali Ultimate Crew Cab 4WD
8,079 mi
$85,590
$83,590
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- Sterling Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 5,794
- Stock #:
- SI1919A
- VIN:
- 1GT4UPE75SF345464
Sponsored Listing
2025 GMC Sierra 2500HD
AT4 Crew Cab 4WD
5,794 mi
$73,787
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Titanium Rush Metallic
- Fuel type:
- Biodiesel
- Interior color:
- Alpine Umber
- Transmission:
- Automatic
- Mileage:
- 8,212
- Stock #:
- GM3826
- VIN:
- 1GT1UXEY2SF195440
-$2,000
Sponsored Listing
2025 GMC Sierra 2500HD
Denali Ultimate Crew Cab 4WD
8,212 mi
$85,590
$83,590
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- Sterling Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 5,794
- Stock #:
- SI1919A
- VIN:
- 1GT4UPE75SF345464
2025 GMC Sierra 2500HD
AT4 Crew Cab 4WD
5,794 mi
$73,787
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 4,394
- Stock #:
- HHATSF313412
- VIN:
- 1GT4UNEY6SF313412
2025 GMC Sierra 2500HD
SLT Crew Cab 4WD
4,394 mi
$70,497
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Alpine Umber
- Transmission:
- Automatic
- Mileage:
- 10,352
- Stock #:
- FP5019
- VIN:
- 1GT4UXEY1TF195864
-$1,860
2026 GMC Sierra 2500HD
Denali Ultimate Crew Cab 4WD
10,352 mi
$88,645
$86,785
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Alpine Umber
- Transmission:
- Automatic
- Mileage:
- 8,079
- Stock #:
- GM3832
- VIN:
- 1GT1UXEY4SF342390
-$2,000
2025 GMC Sierra 2500HD
Denali Ultimate Crew Cab 4WD
8,079 mi
$85,590
$83,590
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Titanium Rush Metallic
- Fuel type:
- Biodiesel
- Interior color:
- Alpine Umber
- Transmission:
- Automatic
- Mileage:
- 8,212
- Stock #:
- GM3826
- VIN:
- 1GT1UXEY2SF195440
-$2,000
2025 GMC Sierra 2500HD
Denali Ultimate Crew Cab 4WD
8,212 mi
$85,590
$83,590
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 45,341
- Stock #:
- 48904
- VIN:
- 1GT4UPEY6SF352352
2025 GMC Sierra 2500HD
AT4 Crew Cab 4WD
45,341 mi
$68,467
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Alpine Umber
- Transmission:
- Automatic
- Mileage:
- 18,040
- Stock #:
- PG816
- VIN:
- 1GT4UXEY5SF148433
2025 GMC Sierra 2500HD
Denali Ultimate Crew Cab 4WD
18,040 mi
$79,695
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 2 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 2,682
- Stock #:
- 6N00003XA
- VIN:
- 1GT3ULEY9SF238690
2025 GMC Sierra 2500HD
Pro Regular Cab LB 4WD
2,682 mi
$54,365
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 8,845
- Stock #:
- 7708P
- VIN:
- 1GT1UPEY2TF117631
2026 GMC Sierra 2500HD
AT4 Crew Cab 4WD
8,845 mi
$76,974
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 9,669
- Stock #:
- 7762P
- VIN:
- 1GT4UZEY1TF112333
2026 GMC Sierra 2500HD
AT4X Crew Cab 4WD
9,669 mi
$85,974
CarGurus Analysis:
2026 GMC Sierra 2500HD
With 1,800 currently listed for sale and an average price of $81,858.00, 33.6% of 2026 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2026 GMC Sierra 2500HD 5 / 5 stars.
96.1% of 2026 Sierra 2500HD models on CarGurus are accident free.
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Black
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 12,402
- Stock #:
- 70098529
- VIN:
- 1GT4UMEY9SF310465
2025 GMC Sierra 2500HD
SLE Crew Cab 4WD
12,402 mi
$60,997
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- Volcanic Red Tintcoat
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- 6N00012
- VIN:
- 1GT4UPE76TF303791
2026 GMC Sierra 2500HD
AT4 Crew Cab 4WD
New car
MSRP $80,215
$76,093
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Summit White
- Mileage:
- 11
- Stock #:
- G260115
- VIN:
- 1GT4UNEY0TF166179
2026 GMC Sierra 2500HD
SLT Crew Cab 4WD
New car
MSRP $77,285
$71,399
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 2
- Stock #:
- P42452
- VIN:
- 1GT4UREY3TF210666
2026 GMC Sierra 2500HD
Denali Crew Cab 4WD
New car
MSRP $90,465
$83,749
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Sterling Metallic
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black, Forge Perforated Leather seat trim
- Transmission:
- Automatic
- Mileage:
- 6
- Stock #:
- GM11902
- VIN:
- 1GT4UREY7TF142226
2026 GMC Sierra 2500HD
Denali Crew Cab 4WD
New car
MSRP $92,890
$87,080
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Summit White
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- P42509
- VIN:
- 1GT4UNEY3TF263554
2026 GMC Sierra 2500HD
SLT Crew Cab 4WD
New car
MSRP $83,125
$77,409
- Year:
- 2026
- 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
- Mileage:
- 5
- Stock #:
- G260388
- VIN:
- 1GT4UPE77TF284264
2026 GMC Sierra 2500HD
AT4 Crew Cab 4WD
New car
MSRP $77,885
$75,360
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 2 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 10
- Stock #:
- P42348
- VIN:
- 1GT3ULE7XSF293172
2025 GMC Sierra 2500HD
Pro Regular Cab LB 4WD
New car
MSRP $54,170
$67,778
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Coastal Dune
- Fuel type:
- Biodiesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- JG3351
- VIN:
- 1GT4UPEY3TF298669
2026 GMC Sierra 2500HD
AT4 Crew Cab 4WD
New car
MSRP $91,149
$86,261
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 470 hp 6.6L V8 Biodiesel
- Exterior color:
- Onyx Black
- Fuel type:
- Biodiesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 9,669
- Stock #:
- 7762P
- VIN:
- 1GT4UZEY1TF112333
Sponsored Listing
2026 GMC Sierra 2500HD
AT4X Crew Cab 4WD
9,669 mi
$85,974
CarGurus Analysis: 2026 GMC Sierra 2500HD
Summary
With 1,800 currently listed for sale and an average price of $81,858.00, 33.6% of 2026 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2026 GMC Sierra 2500HD 5 / 5 stars.
96.1% of 2026 Sierra 2500HD models on CarGurus are accident free.
Why it stands out
The 2026 GMC Sierra 2500HD is a standout in the heavy-duty pickup truck segment, known for its upscale design and robust performance. As part of the fourth generation, it offers a range of modern technology and comfort features that enhance the driving experience. The Sierra 2500HD is equipped with a powerful 6.6-liter V8 engine, available in both gas and Duramax diesel variants, ensuring it meets the demands of both work and leisure. Its luxurious Denali trims provide premium amenities, making it appealing to buyers looking for a blend of utility and comfort. Additionally, the truck's high accident-free percentage of 96.1% reflects its reliability and durability, which are crucial for heavy-duty applications. However, potential buyers should be aware of some reported issues in earlier models, particularly with the infotainment system and electrical components, which may influence their purchasing decision.
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: $49,344.00
- Good/great deal percentage: 29.7%
- User rating: 4.86 / 5
- Total listings: 1,130
This analysis is based on CarGurus' proprietary market data from July 20, 2026, CarGurus experts' opinions, and generative AI.
5.0 Overall rating
Filter by rating
Joe S
Reviewed a 2026 GMC AT4 Crew Cab 4WD on May 11, 2026
It has all the bells and whistles that I want including the premium plus package, the technology package, and the camper snow plow package
2026 GMC Sierra 2500HD Trims
| Trim type | MSRP |
|---|---|
| Pro Double Cab 4WD | $51,700 |
| SLE Crew Cab 4WD | $57,900 |
| Pro Crew Cab 4WD | $53,500 |
| AT4X Crew Cab 4WD | $85,200 |
| SLT Crew Cab 4WD | $65,200 |
| Denali Ultimate Crew Cab 4WD | $94,200 |
| AT4 Crew Cab 4WD | $72,200 |
| Denali Crew Cab 4WD | $75,200 |
2026 GMC Sierra 2500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2026 GMC Sierra 2500HD prices has changed over time.
See more price trends2026 GMC Sierra 2500HD Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Dallas: The Dallas, TX market commands the highest average price at $88,939, likely due to high demand for heavy-duty trucks in the region.
- Lowest Price in 2014 Models: The 2014 GMC Sierra 2500HD is priced at $23,987, indicating significant depreciation for older models.
- Inventory Variation: Cities like Chicago (229 listings) and Philadelphia (204 listings) show a healthy inventory, which may help stabilize prices around $80K–$85K.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Dallas, TX | 337 | $88,939 |
| Atlanta, GA | 281 | $90,747 |
| Chicago, IL | 229 | $84,922 |
| Washington, DC | 226 | $88,524 |
| Houston, TX | 308 | $88,774 |
| Philadelphia, PA | 204 | $80,405 |
| Miami, FL | 173 | $83,190 |
| Los Angeles, CA | 139 | $87,022 |
| Boston, MA | 188 | $87,002 |
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2025 GMC Sierra 2500HD is priced at $74,887, which is approximately 61.5% above its MSRP, indicating strong demand for the latest model.
- Depreciation Trends: The 2019 model shows a notable decline, priced at $39,859, reflecting a ~4.0% depreciation from its original MSRP.
- Best Value Years: The 2022 and 2023 models offer a balance of price and features, with average prices of $52,329 and $56,033, respectively, showing less depreciation compared to older models.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2025 GMC Sierra 2500HD | $46,300 | $74,887 | +61.5% |
| 2024 GMC Sierra 2500HD | $45,400 | $68,411 | +50.6% |
| 2023 GMC Sierra 2500HD | $42,200 | $56,033 | +32.8% |
| 2022 GMC Sierra 2500HD | $36,200 | $52,329 | +44.6% |
| 2021 GMC Sierra 2500HD | $36,200 | $50,541 | +39.5% |
| 2020 GMC Sierra 2500HD | $35,800 | $49,100 | +37.0% |
| 2019 GMC Sierra 2500HD | $38,200 | $39,859 | +4.0% |
| 2018 GMC Sierra 2500HD | $35,000 | $38,832 | +11.0% |
| 2017 GMC Sierra 2500HD | $34,190 | $36,278 | +6.1% |
| 2016 GMC Sierra 2500HD | $33,535 | $32,609 | -2.8% |
| 2015 GMC Sierra 2500HD | $33,195 | $29,567 | -11.1% |
| 2014 GMC Sierra 2500HD | $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
How much does the 2026 GMC Sierra 2500HD cost in Oneco, CT?
How many 2026 GMC Sierra 2500HD vehicles in Oneco, CT have no reported accidents or damage?
What fuel types are available?
Relevant articles
2026 GMC Sierra 2500HD Pricing, Specs, and Release Date
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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.
