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New GMC Sierra 2500HD for Sale near Stringtown, OK

192 results
Lehigh, OK
2026 GMC Sierra 2500HD Pro Double Cab 4WD Vanguard GMC of Sherman

2026 GMC Sierra 2500HD

New car | MSRP $58,555

$49,943

Sherman, TX
60 mi away
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
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock number:
TF209651
VIN:
1GT2ULE72TF209651

Sponsored

2026 GMC Sierra 2500HD Denali Ultimate Crew Cab 4WD

2026 GMC Sierra 2500HD

New car | MSRP $98,750

$86,888

Sherman, TX
60 mi away
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:
Glacier White Tricoat
Fuel type:
Biodiesel
Interior color:
Alpine Umber
Transmission:
Automatic
Mileage:
5
Stock number:
TF191397
VIN:
1GT4UXEY9TF191397

Sponsored

2026 GMC Sierra 2500HD AT4X Crew Cab 4WD

2026 GMC Sierra 2500HD

New car | MSRP $97,850

$92,137

Oklahoma City, OK
96 mi away
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:
Volcanic Red Tintcoat
Fuel type:
Biodiesel
Interior color:
Black (Obsidian Rush, Full Grain Leather seat trim)
Transmission:
Automatic
Mileage:
4
Stock number:
TF196387
VIN:
1GT4UZEY4TF196387

Sponsored

2026 GMC Sierra 2500HD AT4 Crew Cab 4WD

2026 GMC Sierra 2500HD

New car | MSRP $89,215

$77,509

Sherman, TX
60 mi away
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:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
11
Stock number:
TF165115
VIN:
1GT4UPEY8TF165115

2026 GMC Sierra 2500HD AT4 Crew Cab 4WD

2026 GMC Sierra 2500HD

New car | MSRP $90,135

$77,917

Mcalester, OK
39 mi away
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 With Kalahari Accents
Transmission:
Automatic
Mileage:
17
Stock number:
GM1328
VIN:
1GT4UPEY5TF196936

2026 GMC Sierra 2500HD AT4 Crew Cab 4WD

2026 GMC Sierra 2500HD

New car | MSRP $75,895

$67,806

Mcalester, OK
39 mi away
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:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
16
Stock number:
GM1417
VIN:
1GT4UPE7XTF222664

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2025 GMC Sierra 2500HD

New car | MSRP $89,085

$74,365

Greenville, TX
97 mi away
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:
Sterling Metallic
Fuel type:
Biodiesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
6
Stock number:
SF363917
VIN:
1GT4UPEY6SF363917

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2026 GMC Sierra 2500HD

New car | MSRP $89,640

$77,487

Mcalester, OK
39 mi away
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:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
17
Stock number:
GM1327
VIN:
1GT4UPEY5TF196533

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2026 GMC Sierra 2500HD

New car | MSRP $68,090

$60,293

Paris, TX
66 mi away
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:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Jet Black Cloth Seat Trim
Transmission:
Automatic
Mileage:
14
Stock number:
260616
VIN:
1GT4UME76TF208419

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2026 GMC Sierra 2500HD

New car | MSRP $98,675

$86,429

Greenville, TX
97 mi away
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
Stock number:
TF216047
VIN:
1GT4UXEYXTF216047

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2025 GMC Sierra 2500HD

New car | MSRP $91,850

$81,850

Norman, OK
90 mi away
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:
Atmosphere/Brownstone
Transmission:
Automatic
Stock number:
DTG358
VIN:
1GT4UREY3SF356323

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2026 GMC Sierra 2500HD

New car | MSRP $98,675

$86,821

Sherman, TX
60 mi away
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:
5
Stock number:
TF220239
VIN:
1GT4UXEY6TF220239

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2026 GMC Sierra 2500HD

New car | MSRP $102,025

$89,802

Sherman, TX
60 mi away
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:
Alpine Umber
Transmission:
Automatic
Mileage:
5
Stock number:
TF208302
VIN:
1GT4UXEY4TF208302

Preparing for a close up...

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2026 GMC Sierra 2500HD

New car | MSRP $69,010

$61,121

Paris, TX
66 mi away
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:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black Cloth Seat Trim
Transmission:
Automatic
Mileage:
22
Stock number:
260664
VIN:
1GT4UME70TF209730

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car | MSRP $96,830

$85,179

Sherman, TX
60 mi away
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 (Obsidian Rush)
Transmission:
Automatic
Mileage:
84
Stock number:
TF193082
VIN:
1GT4UZEY0TF193082

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2024 GMC Sierra 2500HD

New car | MSRP $60,905

$49,067

Ardmore, OK
59 mi away
Year:
2024
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
2 doors
Drivetrain:
4X2
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
Summit White
Fuel type:
Biodiesel
Interior color:
Black
Transmission:
Automatic
Mileage:
15
Stock number:
AG1486
VIN:
1GT38LEYXRF224845

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2026 GMC Sierra 2500HD

New car | MSRP $84,690

$73,180

Mcalester, OK
39 mi away
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:
2
Stock number:
GM1286
VIN:
1GT4UNEY0TF185041

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Photos coming soon

2026 GMC Sierra 2500HD

New car | MSRP $89,215

$77,509

Sherman, TX
60 mi away
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 With Kalahari Accents
Transmission:
Automatic
Mileage:
5
Stock number:
TF174693
VIN:
1GT4UPEY5TF174693

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car | MSRP $69,010

$61,121

Paris, TX
66 mi away
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:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Jet Black Cloth Seat Trim
Transmission:
Automatic
Mileage:
15
Stock number:
260677
VIN:
1GT4UME73TF209625

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2026 GMC Sierra 2500HD

New car | MSRP $88,640

$77,640

Gainesville, TX
80 mi away
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:
Jet Black With Kalahari Accents, Perforated Front
Transmission:
Automatic
Mileage:
4
Stock number:
G158189
VIN:
1GT4UPEY2TF158189

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2026 GMC Sierra 2500HD

New car | MSRP $89,135

$78,135

Gainesville, TX
80 mi away
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:
Jet Black With Kalahari Accents, Perforated Front
Transmission:
Automatic
Mileage:
4
Stock number:
G158344
VIN:
1GT4UPEYXTF158344

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2026 GMC Sierra 2500HD

New car | MSRP $97,810

$86,051

Sherman, TX
60 mi away
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:
Alpine Umber
Transmission:
Automatic
Mileage:
120
Stock number:
TF196741
VIN:
1GT4UXEY1TF196741

Preparing for a close up...

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2026 GMC Sierra 2500HD

New car | MSRP $99,115

$88,221

Paris, TX
66 mi away
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:
Downpour Metallic
Fuel type:
Biodiesel
Interior color:
Alpine Umber Full Grain Leather Seat Trim
Transmission:
Automatic
Mileage:
0
Stock number:
260706
VIN:
1GT4UXEY6TF228552

  1. Home
  2. / New Cars
  3. / GMC Sierra 2500HD
  4. / Oklahoma
  5. / Stringtown
Overview
Reviews
FAQs
Picture of GMC Sierra 2500HD

The 2024 GMC 2500 HD Denali Ultimate is part bulldozer and part luxury penthouse.

Sitting at the top of the Sierra’s six available trims, the Denali Ultimate is newly added for the 2024 model year and comes with nearly every available option that can be included on this full-size truck.

The Denali Ultimate trim level is offered on both the 2500 and 3500 HD models. Each provides a higher degree of towing and payload capacity than what’s available in the standard GMC Sierra 1500. To put it bluntly, the Sierra HD models are pickup overkill for anyone simply looking to tow a couple of jet skis or haul a moderately-sized camper. The “HD” in the name stands for “Heavy Duty,” and its capabilities (and price) reflect this.

Powered exclusively by a 6.6-liter turbocharged Duramax diesel V8, the HD Denali Ultimate we test drove has a maximum towing capacity of 22,500 pounds—a 4,000 pound increase versus the 2023 model. Need to tow something along the lines of construction equipment or, say, a small island? Stepping up to the Sierra 3500 HD equates to a max tow rating of 36,500 pounds when using a gooseneck trailer hitch.

Okay, so the Sierra HD lineup has serious chops for getting tough tasks done. But how does it stack up against the competition? Hop aboard as we take a look at every aspect of the HD Denali Ultimate, from how it drives, to the user-friendliness of its infotainment system, trailer tech, and whether this new top-of-the-range trim is worth the price.

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.

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.

Rob B
3.0
Reviewed a 2024 GMC Sierra 2500HD on Dec 19, 2024

I love the AT4, but this truck was involved in an accident. The front end does not show any signs of damage but the front camera did not work when I looked at it. The tailgate must have been down because there is a dent on the top left side of it. There are a number of minor scratches noticed on the paint outside. When you open the driver’s door, since there are no running boards, the paint is worn off from driver getting in and out. High miles for a 2024. Rental company was the one owner. Price needs to be lowered.

Nickey M
5.0
Reviewed a 2025 GMC Sierra 2500HD on Dec 08, 2024

Great truck Perfect for the family great size love it

Jacques M
5.0
Reviewed a 2024 GMC Sierra 2500HD on Sep 21, 2024

Perfect truck for family and outdoor activities. The perfect truck.

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 2026 GMC Sierra 2500HD cost?

The 2026 GMC Sierra 2500HD has a starting MSRP of $47,000 and can cost up to $94,500 depending on the trim package and upgrades. The 1115 new models for sale on CarGurus have an average listing price of $86,729.

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.

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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