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  • Stock photo**
    • 25,173 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Generation Buick GMC (40 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Bohemia, NY / 40 miles away from New Haven, CT

    Thank you for choosing Generation Buick GMC, Long Island's Newest Buick GMC dealer!Certified. 2023 GMC Sierra 2500HD Denali Quicksilver Metallic CREW...

    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: 1GT49RE72PF128281
    Stock: U1108T
    Certified Pre-Owned: Yes
    Listed since: 05-23-2025

  • Price Drop
    • 63,271 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Marty’s GMC (123 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Kingston, MA / 123 miles away from New Haven, CT

    *EXCELLENT Service History!*, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 18" Mach...

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT59NE76PF130144
    Stock: 225177A
    Certified Pre-Owned: No
    Listed since: 01-28-2025

  • Price Drop
    $43,928
    great price
    $4,967 below market
    • 24,760 miles
    • No accidents, 3 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Weirs GMC (190 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Arundel, ME / 190 miles away from New Haven, CT

    RECENT TRADE, BACKUP CAMERA, Sierra 2500HD Pro, 2D Standard Cab, 6.6L V8, 10-Speed Automatic, 4WD, Summit White, Black Cloth, 2 Charge/Data USB Ports,...

    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: 1GT39LE7XRF115144
    Stock: G25151D
    Certified Pre-Owned: Yes
    Listed since: 04-30-2025

  • $56,992
    great price
    $7,805 below market
    • 73,834 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Ingersoll Auto of Danbury (26 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Danbury, CT / 26 miles away from New Haven, CT

    CARFAX One-Owner. Clean CARFAX. Duramax 6.6L V8 Turbodiesel, 4WD, 20' Machined Aluminum Wheels, 220 Amps Alternator, Apple CarPlay/Android Auto, AT4 P...

    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: 1GT49PEYXNF183944
    Stock: T183944
    Certified Pre-Owned: No
    Listed since: 03-31-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • Price Drop
    $59,999
    great price
    $9,757 below market
    • 48,534 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Tim's Truck Capital (154 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Epsom, NH / 154 miles away from New Haven, CT

    10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, ABS brakes, Alloy wheels, Compass, Electronic Stability Control, Front dual zone A/C...

    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: 1GT49PEY5NF276015
    Stock: TE1714
    Certified Pre-Owned: No
    Listed since: 03-13-2025

    • 42,563 miles
    • No accidents, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Davidson Chevrolet Cadillac Buick GMC of Rome (186 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Rome, NY / 186 miles away from New Haven, CT

    REMOTE START, ONE OWNER, CLEAN VEHICLE HISTORY/NO ACCIDENTS REPORTED, SERVICE RECORDS AVAILABLE, BLUETOOTH/HANDS FREE CELLPHONE, BACK UP CAMERA, RECEN...

    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: 1GT49PEY4PF193971
    Stock: R233345X
    Certified Pre-Owned: No
    Listed since: 06-04-2025

  • $71,227
    great price
    $4,893 below market
    • 34,689 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • D'Addario Nissan (9 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Shelton, CT / 9 miles away from New Haven, CT

    2024 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black Leather. CARFAX One-Owner.

    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: 1GT49REY0RF290728
    Stock: G5179A
    Certified Pre-Owned: No
    Listed since: 05-13-2025

    • 62,643 miles
    • 1 accident, 1 owner, personal use only
    • Auto Mart Quality Trucks & Cars (136 mi away)
    • 4WD
    • Truck trailer alignm...
    • Steering wheel audio...
    • Stability control sy...
    • rear (Not available ...
    Close

    Located in Derry, NH / 136 miles away from New Haven, CT

    AutoMart is now celebrating 30 years as a full service dealership selling the highest quality trucks and cars in Derry New Hampshire. Same owners sam...

    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: 1GT49ME75PF184539
    Stock: AM3770
    Certified Pre-Owned: No

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • Price Drop
    $66,995
    great price
    $7,399 below market
    • 20,001 miles
    • 1 accident, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • McGovern GMC (95 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Westborough, MA / 95 miles away from New Haven, CT

    McGovern GMC is proud to present this...Ebony Twilight Metallic 2022 GMC Sierra 2500HD Denali Duramax 6.6L V8 Turbodiesel 10-Speed Automatic CARFAX O...

    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: 1GT49REY4NF124111
    Stock: GM11547A
    Certified Pre-Owned: Yes
    Listed since: 05-17-2025

  • $71,797
    great price
    $4,669 below market
    • 40,154 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Star GMC Quakertown (140 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Quakertown, PA / 140 miles away from New Haven, CT

    GM CERTIFIED, Adaptive Cruise Control, Denali Reserve Package, Inside Rearview Auto-Dimming Rear Camera Mirror, Multicolor 15 Diagonal Head-Up Display...

    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: 1GT49REY4RF104687
    Stock: 2314
    Certified Pre-Owned: Yes
    Listed since: 02-11-2025

  • New Listing
    $80,498
    good price
    $3,924 below market
    • 7,820 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Mercedes-Benz of Boston (120 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Somerville, MA / 120 miles away from New Haven, CT

    One Owner - Low Miles Before delivering a pre-owned vehicle, we put it through a rigorous 165 point safety inspection. Following the manufacturer s re...

    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: 1GT19XEY6RF317910
    Stock: M197711A
    Certified Pre-Owned: No
    Listed since: 04-15-2025

  • $80,936
    good price
    $2,983 below market
    • 16,320 miles
    • No accidents, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Ingersoll Auto of Danbury (26 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Danbury, CT / 26 miles away from New Haven, CT

    Clean CARFAX. Sierra 2500HD Denali Ultimate, Duramax 6.6L V8 Turbodiesel, 4WD, 16-Way Power Driver Seat Adjuster w/Lumbar, Apple CarPlay/Android Auto,...

    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: 1GT49XEY5RF310427
    Stock: A310427
    Certified Pre-Owned: No
    Listed since: 04-28-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • $72,250
    good price
    $4,345 below market
    • 5,150 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Romeo Subaru (129 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saratoga Springs, NY / 129 miles away from New Haven, CT

    Romeo VW Ford of Saratoga is proud to present this 2024 GMC Sierra 2500HD with AT4 Preferred Package (Adaptive Cruise Control, LED Smoked Amber Roof 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: 1GT49PE7XRF243914
    Stock: F25033SA
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • Price Drop
    $58,987
    good price
    $3,735 below market
    • 48,950 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Banks Chevrolet Buick GMC (148 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    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 (1st Row),2nd Row Dual USB Charge-Only Ports,AM/F...

    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: 1GT49PE79NF163420
    Stock: T63420
    Certified Pre-Owned: Yes
    Listed since: 04-29-2025

  • Price Drop
    $73,487
    fair price
    $1,900 below market
    • 5,548 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Banks Chevrolet Buick GMC (148 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Concord, NH / 148 miles away from New Haven, CT

    12-Way Power Driver Seat Adjuster w/Lumbar,12-Way Power Passenger Seat Adjuster w/Lumbar,2 Charge/Data USB Ports Inside Center Console,2 Charge-Only R...

    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: 1GT49RE78RF338595
    Stock: T38595
    Certified Pre-Owned: Yes
    Listed since: 04-24-2025

  • $69,995
    good price
    $4,760 below market
    • 61,736 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Romeo Chevrolet Buick GMC (71 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Lake Katrine, NY / 71 miles away from New Haven, CT

    Romeo GM Center Proudly presents this 2024 GMC Sierra 2500HD with AT4 Preferred Package (Adaptive Cruise Control, LED Smoked Amber Roof Marker Lamps, ...

    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: 1GT49PEY9RF108710
    Stock: 25551A
    Certified Pre-Owned: No
    Listed since: 06-02-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • $82,233
    good price
    $3,008 below market
    • 11,441 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Ingersoll Auto of Danbury (26 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Danbury, CT / 26 miles away from New Haven, CT

    CARFAX One-Owner. Clean CARFAX. Sierra 2500HD Denali Ultimate, Duramax 6.6L V8 Turbodiesel, 4WD, 220-Amp Alternator, Bose Premium Series 12-Speaker Sy...

    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: 1GT49XEY2RF442626
    Stock: A442626
    Certified Pre-Owned: No
    Listed since: 05-02-2025

  • Stock photo**
    $52,999
    good price
    $3,737 below market
    • 42,456 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Key Chevrolet GMC of Newport (145 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Keyless Entry/Start
    Close

    Located in Newport, NH / 145 miles away from New Haven, CT

    2024 GMC Sierra 2500HD SLE Duramax 6.6L V8 Turbodiesel Titanium Rush Metallic 10-Speed Automatic, 4WD, Black Cloth.At Newport Chevrolet Buick GMC, y...

    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: 1GT59MEY2RF192923
    Stock: E13515A
    Certified Pre-Owned: No
    Listed since: 04-25-2025

  • Stock photo**
    $72,987
    good price
    $3,623 below market
    • 40,426 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Banks Chevrolet Buick GMC (148 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    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 Charge/Data USB Ports Inside Center Console,2 Charge-Only R...

    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: 1GT49PEY6RF215262
    Stock: T15262
    Certified Pre-Owned: No
    Listed since: 04-24-2025

  • $61,500
    good price
    $3,121 below market
    • 24,298 miles
    • 1 accident, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Colonial South Chevrolet (103 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in North Dartmouth, MA / 103 miles away from New Haven, CT

    : Highlights of this 2022 GMC Sierra 2500HD include: REDUCED FROM $61,500! CARFAX 1-Owner, GREAT MILES 24,298! Heated/Cooled Leather Seats, NAV, Sunro...

    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: 1GT49RE73NF210470
    Stock: 3644
    Certified Pre-Owned: No
    Listed since: 04-23-2025

  • $88,895
    good price
    $3,256 below market
    • 2,801 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • McGovern GMC (95 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Westborough, MA / 95 miles away from New Haven, CT

    McGovern GMC is proud to present this...Onyx Black 2024 GMC Sierra 2500HD AT4X Duramax 6.6L V8 Turbodiesel 10-Speed Automatic Clean CARFAX.Features ...

    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: 1GT49ZEY9RF343068
    Stock: GM3501
    Certified Pre-Owned: Yes
    Listed since: 05-08-2025

Showing 22 - 42 out of 813 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
4.3 out of 5 stars35 Reviews
Write a vehicle reviewSee all 35 reviews
  • 5 star
    (71%)
  • 4 star
    (11%)
  • 3 star
    (3%)
  • 2 star
    (6%)
  • 1 star
    (9%)
4 out of 5 stars

Love the looks, love the power, love the economy

Rick B., 03/18/2021
2020 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 6A)
I purchased a 2020 Sierra 2500HD AT4 (Duramax) in November of 2020. This thing is a BEAST and a joy to drive. I've put almost 131K miles on it thus far and have not had a single issue. IMHO, the interior is better than a Ford but trails behind the Dodge. However, just because it seems less capable with technology isn't necessarily true. I have physical switches for many things that … the Dodge incorporates in their big screen. I MUCH prefer the switches because I don't have to go through electronic pages to find what I'm looking for. The seats are a bit hard but are very supportive. I'm averaging a 21mpg with it at this point but the majority (80%) of my driving is highway speeds. In an attempt see just how good of gas mileage I could get, I drove a cruise controlled speed of 55 mph on a VERY flat 2 lane road for a little over 75 miles. My results, 29.3mpg, yep, you read that right. As I get up to interstate cruising speed it's much closer to 22mpg. I have hauled my 6,000 pound boat a couple of times with it and it still gets around 14mpg. Speaking of hauling the boat, this thing tows like a dream. The cameras, mirrors and tow-haul mode work great and if I couldn't see the boat in my mirrors, I would hardly know it's there. The voice command menu and responsiveness is great, no issues with it and it has always recognized what I'm asking for. The Bose speakers produce more than I can listen to, and the cab is quiet enough for conference calls when I'm travelling for work. The in-cab outlet is perfect for charging my laptop on the go and allows my wife to use the computer when we travel without killing the battery. I put a hardcover on the bed but with the multipro tailgate I rarely have to do anything with it, and I make a LOT of trips to the lumber yard for 8'+ lumber. All I have to do is drop the upper portion of the tailgate and the long lumber slides right in and is safe and secure. One thing I would criticize. It doesn't match up when compared to the other makers off-roading capabilities (manual/push button locking differentials), but I didn't really buy it for that. If you want something to do some relatively challenging off-road cruising, look elsewhere. I could go on, but suffice it to say that I LOVE this truck and would absolutely recommend it without hesitation.
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Used 2023 GMC Sierra 2500HD in New Haven, CT Values

Estimated values
2023 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 6A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$52,837$55,283$58,033
Clean$52,142$54,462$57,074
Average$50,984$53,094$55,475
Rough$49,479$51,316$53,396

The average list price of a used 2023 GMC Sierra 2500HD in New Haven, Connecticut is $66,581. The average mileage on a used GMC Sierra 2500HD 2023 for sale in New Haven, Connecticut is 33,456. Based on the average mileage of 33,456 for used 2023 GMC Sierra 2500HD 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 2500HD 2023 in New Haven, Connecticut to be $50,984.

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