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Used GMC Sierra 2500HD for Sale near Sandy Hook, CT

734 results
Sandy Hook, CT
2019 GMC Sierra 2500HD Denali Crew Cab 4WD Chevrolet of Smithtown

2019 GMC Sierra 2500HD

Denali Crew Cab 4WD

84,413 miles

$47,996

Fair Deal
St James, NY
38 mi away
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:
Summit White
Fuel type:
Biodiesel
Interior color:
Cocoa/Dark Sand
Transmission:
6-Speed Automatic
Mileage:
84,413
Stock number:
U20001T
VIN:
1GT12SEY8KF155856

Sponsored

2025 GMC Sierra 2500HD AT4 Crew Cab 4WD

2025 GMC Sierra 2500HD

AT4 Crew Cab 4WD

6,083 miles

$68,961

Good Deal
Branford, CT
26 mi away
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
6,083
Stock number:
326882A
VIN:
1GT4UPE77SF336796

Sponsored

2021 GMC Sierra 2500HD AT4 Crew Cab 4WD

2021 GMC Sierra 2500HD

AT4 Crew Cab 4WD

108,864 miles

$41,798

Good Deal
Danbury, CT
9 mi away
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 With Kalahari Accents
Transmission:
6-Speed Automatic
Mileage:
108,864
Stock number:
X309641
VIN:
1GT49PE72MF309641

Sponsored

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2021 GMC Sierra 2500HD

AT4 Crew Cab 4WD

92,969 miles

$49,244

Good Deal
Plainville, CT
28 mi away
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:
92,969
Stock number:
FA12130B
VIN:
1GT49PEY0MF250078

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2024 GMC Sierra 2500HD

Denali Ultimate Crew Cab 4WD

39,928 miles

$71,908

Good Deal
Waterbury, CT
16 mi away
Year:
2024
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:
Atmosphere/Brownstone
Transmission:
Automatic
Mileage:
39,928
Stock number:
52340AQ
VIN:
1GT49XEY0RF143202

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2025 GMC Sierra 2500HD

AT4 Crew Cab 4WD

6,083 miles

$68,961

Good Deal
Branford, CT
26 mi away
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
6,083
Stock number:
326882A
VIN:
1GT4UPE77SF336796

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2021 GMC Sierra 2500HD

AT4 Crew Cab 4WD

68,231 miles

$51,994

Fair Deal
North Haven, CT
21 mi away
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:
68,231
Stock number:
19596MK2
VIN:
1GT49PE72MF232494

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2024 GMC Sierra 2500HD

Denali Ultimate Crew Cab 4WD

27,501 miles

$74,969

Good Deal
Branford, CT
26 mi away
Year:
2024
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:
27,501
Stock number:
11659
VIN:
1GT49XEY5RF213454

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2019 GMC Sierra 2500HD

SLT Crew Cab 4WD

82,804 miles

$39,654

Great Deal
Waterbury, CT
15 mi away
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:
Summit White
Fuel type:
Biodiesel
Interior color:
Cocoa/Dune
Transmission:
6-Speed Automatic
Mileage:
82,804
Stock number:
U10074
VIN:
1GT12REY5KF240002

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2021 GMC Sierra 2500HD

Denali Crew Cab 4WD

63,721 miles

$52,900

Fair Deal
Middletown, CT
32 mi away
Year:
2021
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior color:
Onyx Black
Interior color:
Black
Transmission:
Automatic
Mileage:
63,721
Stock number:
BM4069
VIN:
1GT49REY8MF114311

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2020 GMC Sierra 2500HD

Denali Crew Cab 4WD

50,376 miles

$49,990

Fair Deal
Branford, CT
26 mi away
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 Frost Tricoat
Fuel type:
Gasoline
Interior color:
Gray (Dark Walnut/Dark Ash Grey)
Transmission:
6-Speed Automatic
Mileage:
50,376
Stock number:
326840SA
VIN:
1GT49RE78LF264263

Sponsored

  1. Home
  2. / Used Cars
  3. / GMC Sierra 2500HD
  4. / Connecticut
  5. / Sandy Hook
Overview
Reviews
FAQs

CarGurus recommends the 2025 GMC Sierra 2500HD

Picture of GMC Sierra 2500HD ## Summary - With 3,033 currently listed for sale on CarGurus and an **average price of $76,050.00**, 33.3% of 2025 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2025 GMC Sierra 2500HD 5 / 5 stars. - **95.1% of 2025 Sierra 2500HD models on CarGurus are accident free.** - The 2025 GMC Sierra 2500HD offers a variety of upscale options and features, ensuring a balance of performance and luxury for both work and leisure capabilities. ## Why it stands out The 2025 GMC Sierra 2500HD stands out in the heavy-duty truck market due to its blend of professional-grade performance and luxurious amenities. It is equipped with cutting-edge technology, providing a comfortable ride for both drivers and passengers. The various trim levels, including Denali and Denali Ultimate, cater to those seeking additional luxury features, making it appealing to buyers. With robust towing capabilities and a reputation for reliability, the 2025 Sierra 2500HD is a solid choice for anyone needing a dependable workhorse without sacrificing comfort. ## Other model years to consider - **[2023 GMC Sierra 2500HD](https://www.cargurus.com/Cars/l-Used-2023-GMC-Sierra-2500HD-c32421)** - Average price: $56,826.00 - Good/great deal percentage: 33.5% - User rating: 4.33 / 5 - Total listings: 3,521 - **[2024 GMC Sierra 2500HD](https://www.cargurus.com/Cars/l-Used-2024-GMC-Sierra-2500HD-c32774)** - Average price: $69,277.00 - Good/great deal percentage: 34.0% - User rating: 3.86 / 5 - Total listings: 3,625 - **[2021 GMC Sierra 2500HD](https://www.cargurus.com/Cars/l-Used-2021-GMC-Sierra-2500HD-c30860)** - Average price: $50,644.00 - Good/great deal percentage: 32.5% - User rating: 4.69 / 5 - Total listings: 1,969 These recommendations are based on CarGurus' proprietary market data from March 2, 2026, CarGurus experts' opinions, and generative AI.

4.5 Overall rating

(272 reviews)

Customers say

The GMC Sierra 2500HD is a favored choice among truck owners, known for its impressive power, towing capabilities, and comfortable ride. Drivers consistently appreciate its smooth handling and luxurious features that cater to both work and leisure needs. Owners often highlight its reliability and strong performance in challenging tasks like towing heavy loads. However, some owners do express concerns regarding fuel economy and pricing, noting that it can feel expensive compared to competitors, as well as mentioning quality issues in certain models. Overall, the Sierra 2500HD stands out for its performance and comfort, making it a solid option for those in need of a heavy-duty truck.

AI generated from the text of customer reviews.

What people say

comfort features performance power towing capacity
Jim W
4.0
Reviewed a 2024 GMC Sierra 2500HD on May 14, 2024

I’m not a fan of black. This truck had a black exterior and interior. It’s not for me. GM should offer more color choices.

Andrew H
5.0
Reviewed a 2016 GMC Sierra 2500HD on Jun 18, 2024

This truck is an SLT model, so its loaded with a lot of luxury features including power leather seats, premium sound (Bose), factory remote start, heated and cooled seats, heated steering wheel, etc.

Anonymous
3.0
Reviewed a 2024 GMC Sierra 2500HD on Jun 07, 2024

The direct injection system and potential carbon buildup on the 6.6 gas V8 engines concern me - especially for long term use. GMC needs to work on developing a more reliable HD gas engine for longevity.

Darrell K
5.0
Reviewed a 2015 GMC Sierra 2500HD on May 29, 2024

Good towing package/prep and good condition aesthetically. Little to no rust apparent.

michael m
5.0
Reviewed a 2009 GMC Sierra 2500HD on Mar 05, 2024

I really love the truck when I get in and close the door You can tell it’s built strong super comfortable and everything is rite there the ride is smooth the Deramax has plenty of power with the Allison automatic transmission shifts smooth the GMC Sierra 2500 is a amazing truck I would buy another one with out a doubt Thank You Michael

GMC Sierra 2500HD FAQs

Is the GMC 2500 reliable?

Yes, the GMC Sierra 2500HD is known for its reliability, especially in certain model years. According to JD Power's rankings, the most reliable years for the Sierra 2500HD include 2020, 2018, 2016, 2014, 2012, 2011, and 2010. These models have earned high marks for their durability and dependability, making them solid choices if you're in the market for a heavy-duty pickup.

How many miles per gallon does a GMC 2500 diesel get?

The GMC Sierra 2500HD with the diesel engine delivers a fuel efficiency of around 17 mpg on the highway, based on tests of the Denali trim. While other diesel-powered competitors like the Silverado 2500 LTZ and Ram 2500 Tradesmen have achieved slightly better highway mileage at 19 mpg, the Sierra 2500HD still offers a respectable balance of power and fuel economy for a heavy-duty truck.

Is a GMC 2500 a good truck?

The 2024 GMC Sierra 2500 HD is indeed a good truck, known for its competence and power in the heavy-duty segment. It features a comfortable ride, a functional interior, and a potent turbocharged V8 engine. While it boasts a higher maximum tow rating than its predecessors, it still faces stiff competition from other brands. Nonetheless, it remains a solid choice for those needing a reliable and capable heavy-duty truck.

What is the MPG for a 2024 GMC Sierra 2500 HD diesel?

The 2024 GMC Sierra 2500 HD diesel has an average combined fuel economy of roughly 14 mpg, based on data from multiple vehicles, fuel-ups, and miles driven. This figure provides a realistic expectation of what owners can expect in terms of fuel efficiency, considering the truck's heavy-duty capabilities and performance demands.

How much does the GMC Sierra 2500HD cost in Sandy Hook, CT?

The average GMC Sierra 2500HD costs about $55,741.96. The average price has decreased by -3.4% since last year. The 735 for sale near Sandy Hook, CT on CarGurus, range from $8,888 to $130,082 in price.

Is the GMC Sierra 2500HD a good car?

CarGurus experts gave the 2024 GMC Sierra 2500HD an overall rating of 8/10 and GMC Sierra 2500HD owners have rated the vehicle a 4.4/5 stars on average. If a vehicle has both strong expert and owner reviews, you can feel confident in its quality. If either expert reviews, owner reviews, or both are spotty, you might want to do some research to figure out where the car falls short.

How many GMC Sierra 2500HD vehicles in Sandy Hook, CT have no reported accidents or damage?

625 out of 735 for sale near Sandy Hook, CT have no reported accidents or damage.

Is the GMC Sierra 2500HD safe?

CarGurus experts gave the 2024 GMC Sierra 2500HD a safety rating of 9/10.

What fuel types are available?

Diesel, Flex Fuel Vehicle, Biodiesel, Gasoline engines are available.

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