Skip to FiltersReport abuse
260 listings
- $46,877great price$6,627 below market
- 97,125 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Brattleboro Auto Mall (109 mi away)
Close
Located in Brattleboro, VT / 109 miles away from New Haven, CT
Priced below KBB Fair Purchase Price! This 2020 Onyx Black GMC Sierra 3500HD AT4 4WD is well equipped and includes these features and benefits: AT4 Pr...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49VEY9LF239762
Stock: G25212A
Certified Pre-Owned: No
Listed since: 04-30-2025 - Price Drop$59,891fair price$2,891 below market
- 41,275 miles
- 2 accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Performance Buick GMC of Woodbridge (88 mi away)
Close
Located in Woodbridge, NJ / 88 miles away from New Haven, CT
10-Speed Automatic, 4WD, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim.** OIL CHANGES FOR LIFE!! With purchase or lease ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49VEY0LF217553
Stock: GW1030
Certified Pre-Owned: No
Listed since: 05-15-2025 - $54,987fair price$1,029 below market
- 99,210 miles
- No accidents, 2 owners, personal use
- 6'10” bed, 6.6l, 8cyl
- Banks Chevrolet Buick GMC (148 mi away)
Close
Located in Concord, NH / 148 miles away from New Haven, CT
10-Speed Automatic, 4WD, Jet Black Leather.Clean CARFAX.2020 GMC Sierra 3500HD Denali Denali Duramax 6.6L V8 Turbodiesel 4WD
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEY5LF151359
Stock: T51359
Certified Pre-Owned: No
Listed since: 05-14-2025 - New ListingNot Priced
- 41,634 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Star GMC Quakertown (141 mi away)
Close
Located in Quakertown, PA / 141 miles away from New Haven, CT
6-Speed Automatic, 4WD, Jet Black Vinyl. 2020 GMC Sierra 3500HD Summit White 4WD 6-Speed Automatic 4D Crew Cab Recent Arrival!HUGE Memorial Day Sale!!...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49SE75LF343123
Stock: Q25366A
Certified Pre-Owned: No
Listed since: 05-24-2025 - $63,487great price$5,726 below market
- 30,646 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Springfield GMC (141 mi away)
Close
Located in North Springfield, VT / 141 miles away from New Haven, CT
Take advantage of our exclusive Big Deal Plus+ plan which includes 2 years of UNLIMITED scheduled maintenance at no extra charge! You will enjoy 2 yea...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEYXMF231743
Stock: ST25306A
Certified Pre-Owned: No
Listed since: 05-12-2025 - Price Drop$57,409great price$8,585 below market
- 66,582 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Hurd Auto Mall (81 mi away)
Close
Located in Johnston, RI / 81 miles away from New Haven, CT
Recent Arrival! Certified. At Hurd Auto Mall, proudly part of the Balise Family, we have been honored to serve the Rhode Island community for over 85 ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEY9MF223827
Stock: JG2585B
Certified Pre-Owned: Yes
Listed since: 05-08-2025 - 138,432 miles
- 1 accident, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Star GMC Quakertown (141 mi away)
Close
Located in Quakertown, PA / 141 miles away from New Haven, CT
2020 GMC Sierra 3500HD Onyx Black AT4 4WD 10-Speed Automatic 4D Crew CabHUGE Memorial Day Sale!! Offering Lifetime Powertrain Warranties on most of ou...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49VEY5LF164431
Stock: Q25357A
Certified Pre-Owned: No
Listed since: 05-09-2025- Price Drop$46,400good price$5,192 below market
- 111,744 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Irwin Chevrolet (171 mi away)
Close
Located in Laconia, NH / 171 miles away from New Haven, CT
Priced below KBB Fair Purchase Price! Clean CARFAX. CARFAX One-Owner.10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.Ebony Twilight M...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49VEY4MF310562
Stock: CMPT026
Certified Pre-Owned: No
Listed since: 04-05-2025 - $59,998good price$2,607 below market
- 69,332 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- CarMax Waterbury (15 mi away)
Close
Located in Waterbury, CT / 15 miles away from New Haven, CT
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEYXMF255850
Stock: 26816717
Certified Pre-Owned: No - $40,995fair price$1,433 below market
- 87,984 miles
- No accidents, 1 owner, personal use only
- 6'7” bed, 6l, 8cyl
- Bensons Chevrolet (144 mi away)
Close
Located in Ludlow, VT / 144 miles away from New Haven, CT
2019 GMC Sierra 3500HD SLT Onyx BlackVortec 6.0L V8 SFI Flex Fuel VVT 4WD 6-Speed Automatic with OverdriveCARFAX One-Owner. Clean CARFAX.LEATHER...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT12VEG7KF242107
Stock: 9234A
Certified Pre-Owned: No
Listed since: 12-21-2024 - $49,999fair price$30 above market
- 96,864 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Patriot Buick GMC (157 mi away)
Close
Located in Boyertown, PA / 157 miles away from New Haven, CT
CARFAX One-Owner. Clean CARFAX. 2019 GMC Sierra 3500HD Denali Onyx Black Allison 1000 6-Speed Automatic, 4WD, Cocoa/Dune w/Perforated Leather Appointe...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT42WEYXKF207685
Stock: G5175A
Certified Pre-Owned: No
Listed since: 04-22-2025 - Price Drop$57,987fair price$289 below market
- 81,458 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Banks Chevrolet Buick GMC (148 mi away)
Close
Located in Concord, NH / 148 miles away from New Haven, CT
10-Way Power Driver Seat Adjuster w/Lumbar,10-Way Power Passenger Seat Adjuster w/Lumbar,2 USB Ports (First Row),2 USB Ports Inside Console,2nd Row Du...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEY2MF196017
Stock: T96017
Certified Pre-Owned: No
Listed since: 03-31-2025 - $53,897fair price$864 below market
- 54,883 miles
- No accidents, 1 owner, personal use only
- 6'7” bed, 6.6l, 8cyl
- Springfield GMC (141 mi away)
Close
Located in North Springfield, VT / 141 miles away from New Haven, CT
Take advantage of our exclusive Big Deal Plus+ plan which includes 2 years of UNLIMITED scheduled maintenance at no extra charge! You will enjoy 2 yea...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT42WEY1KF254863
Stock: ST25339A
Certified Pre-Owned: No
Listed since: 04-30-2025 - Price Drop$43,550fair price$2,068 above market
- 54,058 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Romeo Chevrolet Buick GMC (71 mi away)
Close
Located in Lake Katrine, NY / 71 miles away from New Haven, CT
Romeo GM Center Proudly presents this 2021 GMC Sierra 3500HD with Suspension Package, 2-Speed Electronic Shift Transfer Case, 3.73 Rear Axle Ratio, 4-...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49SE75MF209536
Stock: 25178A
Certified Pre-Owned: No
Listed since: 03-10-2025 - New Listing$39,730great price$7,082 below market
- 104,634 miles
- No accidents, 2 owners, personal use only
- 6'7” bed, 6.6l, 8cyl
- Ingersoll Auto of Danbury (27 mi away)
Close
Located in Danbury, CT / 27 miles away from New Haven, CT
Clean CARFAX. Sierra 3500HD SLT, Duramax 6.6L V8 Turbodiesel, 4WD, 4' Round Black Tubular Assist Steps (LPO), All-Terrain HD Package, All-Weather Floo...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT42XCY3JF122257
Stock: T122257
Certified Pre-Owned: No
Listed since: 05-24-2025 - Price Drop
- 111,676 miles
- No accidents, 3 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Fairfield's Buick GMC (115 mi away)
Close
Located in Keene, NH / 115 miles away from New Haven, CT
This 2021 Pacific Blue Metallic GMC Sierra 3500HD Denali 4WD is well equipped and includes these features and benefits:Clean CARFAX.Fairfield's Auto G...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEY6MF319334
Stock: G25279A
Certified Pre-Owned: No
Listed since: 03-21-2025 - Price Drop
- 102,951 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Weirs GMC (190 mi away)
Close
Located in Arundel, ME / 190 miles away from New Haven, CT
CLEAN CARFAX/NO ACCIDENTS REPORTED, ONE OWNER, RECENT TRADE, Sierra 3500HD SLE, 4D Crew Cab, 6.6L V8, 6-Speed Automatic, 4WD, Summit White, Black Clot...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49TE74MF126928
Stock: G24042A
Certified Pre-Owned: Yes
Listed since: 03-24-2025 - $66,874great price$7,448 below market
- 13,025 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Greater Lowell Buick GMC (124 mi away)
Close
Located in Lowell, MA / 124 miles away from New Haven, CT
GMC CERTIFIED!!! ONE OWNER WITH ONLY 12K FOR MILES CLEAN CARFAX AND ALL THE TOYS!!! ! THIS 1 OF A KIND DUALLY WITH THIS EQUIPMENT AND MILES IS SURE TO...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEY8LF182217
Stock: 245178A
Certified Pre-Owned: Yes
Listed since: 02-05-2025 - Price Drop
- 53,263 miles
- 1 accident, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Weirs GMC (190 mi away)
Close
Located in Arundel, ME / 190 miles away from New Haven, CT
ONE OWNER, RECENT TRADE, 4D Crew Cab, 6.6L V8, 6-Speed Automatic, 4WD, Summit White, Black Cloth, 2-Speed Electronic Shift Transfer Case, 220 Amp Alte...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49SE7XMF165713
Stock: G25143B
Certified Pre-Owned: Yes
Listed since: 03-20-2025 - New Listing
- 137,278 miles
- 6'10” bed, 6.6l, 8cyl
- Salvage Reseller North (58 mi away)
Close
Located in Marlboro, NY / 58 miles away from New Haven, CT
This vehicle is located at Earlington, KY Copart yard. Join our online auctions to see its final price. All purchases must take place online at www.sa...
AutoCheck Vehicle History Summary Unavailable.
Features and Specs:
Listing Information:
VIN: 1GT49WEY5MF181544
Stock: 56735155
Certified Pre-Owned: No
Listed since: 05-29-2025 - $56,859great price$5,190 below market
- 69,237 miles
- No accidents, 3 owners, personal use only
- 8'2” bed, 6.6l, 8cyl
- Diamond Cadillac (82 mi away)
Close
Located in Auburn, MA / 82 miles away from New Haven, CT
At Diamond Auto Group we want you to know that all our vehicles are priced at a competitive value position to the market. We use an independent 3rd pa...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GT49WEY8LF180659
Stock: TK25204A
Certified Pre-Owned: No
Listed since: 04-11-2025
Showing 1 - 21 out of 260 listings
Consumer Reviews for the GMC Sierra 3500HD
Read recent reviews for the GMC Sierra 3500HD
WHAT A TRUCK
Bill S., 04/05/2020
2020 GMC Sierra 3500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 6A)
I purchased this Denali two weeks ago. I absolutely love this truck. The ride is so smooth and power band is incredible. What a huge difference between my 2008 GMC 2500HD Duramax, its like night and day... I love all the high tech features with the 2020's from the cameras to the front and rear LED lighting. Oh yea forgot about that first of its kind tailgate. Now that's a very … useful tailgate, I can see Ford, Dodge and Chevrolet using the same basic tailgate in the near future.
I really cant wait to haul my 5th wheel with this truck. Once I make that first trip I will update this review regarding the towing...
A big thank you for Thompsons GMC in Placerville, CA for such a great purchasing experience.
It’s been about a year since I purchased my GMC 3500 Denali and wanted to update my review.
I still love this truck so much. I’ve towed my 5th wheel RV approximately 8000K miles. This truck tows my 5th wheel like a dream. The cooling system is definitely a 100% improvement over my 2008 while towing in the warmer weather.
About the only thing I’d like to see is GM add more information to the heads up display (HUD) like your blind spot indicators.
I’m glad we bought when we did because I hear that dealers are having a tough time receiving new trucks.
Bottom line is this, I’d buy this truck all over again absolutely No Regrets!!!!
Used 2020 GMC Sierra 3500HD in New Haven, CT Values
Estimated values
2020 GMC Sierra 3500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $36,892 | $40,615 | $44,207 |
| Clean | $36,110 | $39,731 | $43,218 |
| Average | $34,807 | $38,257 | $41,571 |
| Rough | $33,113 | $36,341 | $39,430 |
The average list price of a used 2020 GMC Sierra 3500HD in New Haven, Connecticut is $51,642. The average mileage on a used GMC Sierra 3500HD 2020 for sale in New Haven, Connecticut is 79,204. Based on the average mileage of 79,204 for used 2020 GMC Sierra 3500HD for sale in New Haven, CT and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Sierra 3500HD 2020 in New Haven, Connecticut to be $34,807.
Filters
Skip to ResultsApplied Filters4Active
Make & Model
Year
New / Used
Price & Payments
Price Rating
Trim
Truck Details
Mileage
Accidents & History
Engine & Drivetrain
Exterior Color
Interior Color
Total Seating
Edmunds Review
Features
Options & Packages
* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.