Skip to FiltersReport abuse
75 listings
- $80,302MSRP $84,690
- Exterior color: Volcanic Red TintcoatVolcanic Red Tintcoat
- Interior color: Jet Black leatherJet Black leather
- 6'10” bed, 6.6l, 8cyl
- Ingersoll Auto of Danbury (31 mi away)(1)
Close
Located in Danbury, CT / 31 miles away from Wallingford, CT
$4,388 off MSRP! Volcanic Red Tintcoat 2025 GMC Sierra 2500HD SLT 4D Crew Cab 4WD Duramax 6.6L V8 Turbodiesel 10-Speed Automatic Do not hesitate, call...
Features and Specs:
Listing Information:
VIN: 1GT4UNEYXSF280589
Stock: N280589
Listed since: 05-28-2025 - Arriving Soon$85,295MSRP
- Exterior color: Volcanic Red TintcoatVolcanic Red Tintcoat
- Interior color: Jet Black leatherJet Black leather
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
Volcanic Red 2025 GMC Sierra 2500HD SLT 4D Crew Cab 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel.
Features and Specs:
Listing Information:
VIN: 1GT4UNEY8SF352695
Stock: 4069 - $67,851MSRP $73,845
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
Sterling Metallic 2025 GMC Sierra 2500HD SLE 4D Crew Cab 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel.
Features and Specs:
Listing Information:
VIN: 1GT4UMEY0SF344231
Stock: 4062
Listed since: 07-24-2025 - New Listing$80,620MSRP
- Exterior color: Downpour MetallicDownpour Metallic
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
Downpour Metallic 2025 GMC Sierra 2500HD Denali 4D Crew Cab 4WD 10-Speed Automatic 6.6L V8.
Features and Specs:
Listing Information:
VIN: 1GT4URE73SF296924
Stock: 4081
Listed since: 07-21-2025 - Arriving Soon$86,140MSRP
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black leatherJet Black leather
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
Sterling Metallic 2025 GMC Sierra 2500HD SLT 4D Crew Cab 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel.
Features and Specs:
Listing Information:
VIN: 1GT4UNEY0SF352707
Stock: 4068
Listed since: 07-25-2025 - $92,493MSRP $96,930
- Exterior color: Onyx BlackOnyx Black
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
Onyx Black 2025 GMC Sierra 2500HD Denali Ultimate 4D Crew Cab 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel.
Features and Specs:
Listing Information:
VIN: 1GT4UXEY9SF343290
Stock: 4063 - $85,910MSRP
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
The 2025 GMC Sierra 2500 AT4 delivers a commanding presence on and off the road, offering a rugged yet refined driving experience. With its bold styli...
Features and Specs:
Listing Information:
VIN: 1GT4UPEYXSF304949
Stock: 4052
Listed since: 06-07-2025 - Arriving Soon$63,005MSRP
- Exterior color: Summit WhiteSummit White
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- Brustolon Buick GMC (46 mi away)
Close
Located in Mystic, CT / 46 miles away from Wallingford, CT
Summit White 2025 GMC Sierra 2500HD SLE 4D Crew Cab 4WD 10-Speed Automatic 6.6L V8.
Features and Specs:
Listing Information:
VIN: 1GT4UME79SF357468
Stock: 4076 - $89,040MSRP $91,040
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black premium leatherJet Black premium leather
- 6'10” bed, 6.6l, 8cyl
- GMC Bedford Hills (49 mi away)
Close
Located in Bedford Hills, NY / 49 miles away from Wallingford, CT
Features and Specs:
Listing Information:
VIN: 1GT4UREY3SF307784
Stock: 30054
Listed since: 06-14-2025 - New Listing$99,425MSRP $100,425
- Exterior color: Titanium Rush MetallicTitanium Rush Metallic
- Interior color: Alpine Umber premium leatherAlpine Umber premium leather
- 6'10” bed, 6.6l, 8cyl
- GMC Bedford Hills (49 mi away)
Close
Located in Bedford Hills, NY / 49 miles away from Wallingford, CT
Features and Specs:
Listing Information:
VIN: 1GT4UXEY5SF244854
Stock: 30023
Listed since: 03-18-2025 - Arriving Soon$90,760MSRP $91,760
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- GMC Bedford Hills (49 mi away)
Close
Located in Bedford Hills, NY / 49 miles away from Wallingford, CT
Features and Specs:
Listing Information:
VIN: 1GT4UPEY0SF360978
Stock: 360978
Listed since: 07-22-2025 - Arriving Soon$72,170MSRP $73,170
- Exterior color: Cardinal RedCardinal Red
- Interior color: Jet Black clothJet Black cloth
- 6'10” bed, 6.6l, 8cyl
- GMC Bedford Hills (49 mi away)
Close
Located in Bedford Hills, NY / 49 miles away from Wallingford, CT
Features and Specs:
Listing Information:
VIN: 1GT4UMEY4SF358150
Stock: 358150
Listed since: 07-18-2025
Showing 64 - 75 out of 75 listings
Consumer Reviews for the GMC Sierra 2500HD
Read recent reviews for the GMC Sierra 2500HD
Be Aware!!! Do Not Buy!!
Jim Feltes, 01/10/2024
2024 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)
I bought a new 2024 2500HD AT4 on 11/15/23 - loved the truck except for the puddle of coolant it left on my garage floor. Took it to the local dealer who replaced the oil cooler - once home i discovered it was still leaking from the same place. Took it back to the dealer who had to order another oil cooler back on 12/14. I have been waiting since then with no estimated time of when … the part will arrive. I have been without a vehicle for 53 days now and GM Customer Service keeps giving me the runaround. To say the least I am disappointed in the truck but extremely disappointed with GM and in the manner in which this has been handled.
| Trim | MPG | Engine | Starting Price |
|---|---|---|---|
| 2025 GMC Sierra 2500HD SLT 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $84,690 |
| 2025 GMC Sierra 2500HD SLE 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $73,170 |
| 2025 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 10A) | N/A | 8-cylinders (gas) | $80,620 |
| 2025 GMC Sierra 2500HD Denali Ultimate 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $96,930 |
| 2025 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $85,910 |
| 2025 GMC Sierra 2500HD SLE 4dr Crew Cab 4WD SB (6.6L 8cyl 10A) | N/A | 8-cylinders (gas) | $63,005 |
| 2025 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $91,040 |
More about the GMC Sierra 2500HD
Edmunds has 75 New GMC Sierra 2500HDs for sale near you, including a 2025 Sierra 2500HD SLE Pickup and a 2025 Sierra 2500HD Denali Ultimate Pickup ranging in price from $63,005 to $100,425.
How much is a new 2025 GMC Sierra 2500HD in Wallingford, CT?
- A new 2025 GMC Sierra 2500HD starts at $63,005 (including destination charge) in Wallingford, CT. Prices will go up based on the trim level you choose and any options you add. Keep in mind that prices can also vary from one state to another and even from one dealership to the next.
How much does a 2025 GMC Sierra 2500HD Crew Cab cost in Wallingford, CT?
- A new 2025 GMC Sierra 2500HD Crew Cab starts at $63,005 in Wallingford, CT. Prices will vary depending on what trim level you choose. Each state may have different pricing, so make sure you enter your correct ZIP code on Edmunds.Other versions include:
2025 GMC Sierra 2500HD Diesel which starts at $100,425.
Filters
Skip to Results