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1,140 listings
- Price Drop$61,499great price$8,361 below market
- 31,401 miles
- No accidents, 1 owner, personal use
- 6'10” bed, 6.6l, 8cyl
- Key Motors of South Burlington (155 mi away)
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Located in South Burlington, VT / 155 miles away from South Portland, ME
Priced below KBB Fair Purchase Price! 10-Speed Automatic, 4WD, Jet Black Leather. Clean CARFAX. Ebony Twilight Metallic 2021 GMC Sierra 2500HD Denali ...
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: 1GT49REY3MF290862
Stock: C61728B
Certified Pre-Owned: No
Listed since: 07-07-2025 - $65,000great price$5,394 below market
- 29,582 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Handy Toyota (162 mi away)
- Five Star Dealer
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Located in Saint Albans, VT / 162 miles away from South Portland, ME
Odometer is 36143 miles below market average! Clean CARFAX. CARFAX One-Owner. 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outle...
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: 1GT49REY4MF157513
Stock: 46296A
Certified Pre-Owned: No
Listed since: 05-16-2025 - $59,950great price$10,528 below market
- 44,669 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Leesburg Buick GMC (489 mi away)
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Located in Leesburg, VA / 489 miles away from South Portland, ME
Diesel Power. AT4 Prestige. 2021 GMC Sierra 2500HD AT4 4WD in Pacific Blue MetallicThis 2021 GMC Sierra 2500HD AT4 Crew Cab 4WD is the ultimate ble...
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: 1GT49PEY8MF219547
Stock: 40081A
Certified Pre-Owned: No
Listed since: 05-09-2025 - Price Drop$54,118great price$6,686 below market
- 89,064 miles
- No accidents, 1 owner, personal use
- 6'10” bed, 6.6l, 8cyl
- Weirs GMC (18 mi away)
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Located in Arundel, ME / 18 miles away from South Portland, ME
10-Speed Automatic, 4WD, Jet Black Leather, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Ou...
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: 1GT49REY0MF196177
Stock: G25329A
Certified Pre-Owned: Yes
Listed since: 07-22-2025 - Price Drop$44,490great price$5,460 below market
- 85,895 miles
- 1 accident, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Tim's Truck Capital (60 mi away)
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Located in Epsom, NH / 60 miles away from South Portland, ME
6-Speed Automatic, 4WD, Jet Black Leather.Tim's Truck Capital is excited to offer this handsome 2021 GMC Sierra 2500HD SLT X31 Off Road in Onyx Blac...
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: 1GT49NE75MF127159
Stock: MK2179
Certified Pre-Owned: No
Listed since: 03-24-2025 - $53,995good price$7,193 below market
- 63,725 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Basil Volkswagen (423 mi away)
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Located in Lockport, NY / 423 miles away from South Portland, ME
AT4 PREMIUM PKG, POWER MOONROOF, BOSE PREMIUM AUDIO, HD SURROUND VISION WITH TWO TRAILER CAMERA PROVISIONS, SNOW PLOW PREP/ CAMPER PKG, HEATED/ VENTIL...
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: 1GT49PE76MF219165
Stock: 25026C
Certified Pre-Owned: No
Listed since: 07-22-2025 - $57,498good price$5,592 below market
- 45,485 miles
- 1 accident, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Handy Buick GMC (162 mi away)
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Located in Saint Albans, VT / 162 miles away from South Portland, ME
Priced below KBB Fair Purchase Price!CARFAX One-Owner.Customer Trade In, 10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster...
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: 1GT49NEY4MF184476
Stock: 17162A
Certified Pre-Owned: No
Listed since: 07-12-2025 - Price Drop$34,000good price$2,451 below market
- 99,080 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Grieco Honda (139 mi away)
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Located in Johnston, RI / 139 miles away from South Portland, ME
6-Speed Automatic, 4WD, Black Cloth, ABS brakes, Electronic Stability Control, Low tire pressure warning, Traction control. CARFAX One-Owner. 2021 GMC...
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: 1GT49LE74MF212112
Stock: PH8925
Certified Pre-Owned: No
Listed since: 05-18-2025 - $44,994fair price$66 below market
- 24,955 miles
- 1 accident, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Lee GMC Truck Center (35 mi away)
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Located in Auburn, ME / 35 miles away from South Portland, ME
Recent Arrival! Summit White 2021 GMC Sierra 2500HD SLE 6.6L V8 6-Speed Automatic 4WDThe manufacturer's warranty still applies on some components of...
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: 1GT39ME79MF316743
Stock: GT316743
Certified Pre-Owned: No
Listed since: 06-28-2025 - New Listing$53,999good price$4,071 below market
- 90,507 miles
- 1 accident, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Holman Lincoln Mount Laurel (351 mi away)
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Located in Mt. Laurel, NJ / 351 miles away from South Portland, ME
10-Speed Automatic, 4WD, Jet Black Leather. Holman Lincoln Mt. Laurel is pleased to offer this wonderful-looking 2021 GMC Sierra 2500HD. Denali Ebony ...
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: 1GT49REY4MF244795
Stock: MF244795
Certified Pre-Owned: No
Listed since: 07-31-2025 - $58,999fair price$1,058 below market
- 41,934 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Maguire Chevrolet (329 mi away)
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Located in Trumansburg, NY / 329 miles away from South Portland, ME
Pacific Blue Metallic 2021 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With Kalahari A...
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: 1GT49PEY9MF305790
Stock: XC3494W
Certified Pre-Owned: No
Listed since: 06-16-2025 - New Listing$65,987fair price$1,853 below market
- 12,154 miles
- 6'10” bed, 6.6l, 8cyl
- Banks Chevrolet Buick GMC (68 mi away)
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Located in Concord, NH / 68 miles away from South Portland, ME
10-Speed Automatic, 4WD, Jet Black Leather.Clean CARFAX.2021 GMC Sierra 2500HD Denali Denali Duramax 6.6L V8 Turbodiesel 4WD
AutoCheck Vehicle History Summary Unavailable.
Features and Specs:
Listing Information:
VIN: 1GT49REY1MF302006
Stock: T02006
Certified Pre-Owned: No
Listed since: 08-04-2025 - $34,985fair price$576 below market
- 72,650 miles
- 1 accident, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Casco Bay Ford (15 mi away)
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Located in Yarmouth, ME / 15 miles away from South Portland, ME
CARFAX One-Owner.Fresh oil change.Summit White 2021 GMC Sierra 2500HD 2D Standard Cab 4WD 6-Speed Automatic 6.6L V8Awards: * JD Power Automotive Perfo...
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: 1GT39LE75MF212308
Stock: S550B
Certified Pre-Owned: No
Listed since: 06-26-2025 - $62,598fair price$128 below market
- 43,454 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- i.g. Burton Chrysler Dodge Jeep Ram FIAT of Berlin (446 mi away)
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Located in Berlin, MD / 446 miles away from South Portland, ME
***BACKUP CAMERA, ***BLUETOOTH, ***CREW CAB, ***4 Wheel Drive, *TOW PACKAGE, CLEAN CARFAX, EXTRA CLEAN, LOCAL TRADE, 10-Speed Automatic, 4WD, Jet Blac...
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: 1GT49REY0MF319881
Stock: B257020A
Certified Pre-Owned: No
Listed since: 05-03-2025 - Price Drop$60,487fair price$1,385 above market
- 53,943 miles
- No accidents, personal use only
- 6'10” bed, 6.6l, 8cyl
- Banks Chevrolet Buick GMC (68 mi away)
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Located in Concord, NH / 68 miles away from South Portland, ME
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,4G L...
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: 1GT19REY7MF111984
Stock: T11984
Certified Pre-Owned: Yes
Listed since: 06-12-2025 - Price Drop$44,499fair price$1,217 above market
- 107,837 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Tim's Truck Capital (60 mi away)
Close
Located in Epsom, NH / 60 miles away from South Portland, ME
6-Speed Automatic, 4WD, Jet Black Leather.Tim's Truck Capital is excited to offer this fantastic 2021 GMC Sierra 2500HD Denali in Summit White Beaut...
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: 1GT49RE75MF101457
Stock: MK2131
Certified Pre-Owned: No
Listed since: 03-05-2025 - 68,632 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Romeo Chevrolet Buick GMC (219 mi away)
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Located in Lake Katrine, NY / 219 miles away from South Portland, ME
Romeo GM Center Proudly presents this 2021 GMC Sierra 2500HD with Assist Step & Floor Liner Package (LPO) (1st & 2nd Row All-Weather Floor Liner (LPO)...
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: 1GT59ME73MF197080
Stock: 25460A
Certified Pre-Owned: No
Listed since: 06-18-2025- $62,987fair price$1,773 above market
- 47,905 miles
- No accidents, 2 owners, personal use
- 6'10” bed, 6.6l, 8cyl
- Morgan Automotive (395 mi away)
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Located in Manheim, PA / 395 miles away from South Portland, ME
CLEAN CARFAX!!This powerful 2021 GMC Sierra 2500 AT4 Crew Cab 4WD with the AT4 Preferred Package combines heavy-duty strength with trail-ready refinem...
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: 1GT49PEY0MF272209
Stock: J272209
Certified Pre-Owned: No - $56,998fair price$112 below market
- 78,290 miles
- 1 accident, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- CarMax Wayne (275 mi away)
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Located in Wayne, NJ / 275 miles away from South Portland, ME
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: 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: 1GT49REY1MF199685
Stock: 26389447
Certified Pre-Owned: No - $59,133great price$12,973 below market
- 23,400 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Marty's Chevrolet of Bourne (133 mi away)
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Located in Bourne, MA / 133 miles away from South Portland, ME
Priced below KBB Fair Purchase Price! CARFAX One-Owner. Clean CARFAX. Odometer is 39876 miles below market average!Pacific Blue Metallic 2022 GMC S...
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: 1GT49NEY0NF304808
Stock: C26007A
Certified Pre-Owned: No
Listed since: 07-23-2025 - 110,365 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Tim's Truck Capital (60 mi away)
Close
Located in Epsom, NH / 60 miles away from South Portland, ME
6-Speed Automatic, 4WD, Jet Black Leather.Tim's Truck Capital is honored to offer this good-looking 2021 GMC Sierra 2500HD Denali in White Frost Tri...
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: 1GT49RE7XMF183962
Stock: MK2395
Certified Pre-Owned: No
Listed since: 07-21-2025
Showing 1 - 21 out of 1,140 listings
Consumer Reviews for the GMC Sierra 2500HD
Read recent reviews for the GMC Sierra 2500HD
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.
Used 2021 GMC Sierra 2500HD in South Portland, ME Values
Estimated values
2021 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $47,814 | $50,406 | $53,012 |
| Clean | $46,938 | $49,433 | $51,937 |
| Average | $45,480 | $47,812 | $50,145 |
| Rough | $43,583 | $45,705 | $47,816 |
The average list price of a used 2021 GMC Sierra 2500HD in South Portland, Maine is $53,589. The average mileage on a used GMC Sierra 2500HD 2021 for sale in South Portland, Maine is 60,235. Based on the average mileage of 60,235 for used 2021 GMC Sierra 2500HD for sale in South Portland, ME 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 2021 in South Portland, Maine to be $45,480.
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