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295 listings
- $57,749good price$3,370 below market
- 59,440 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- AutoNation Buick GMC Park Meadows (10 mi away)
- Home delivery*
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Located in Lone Tree, CO / 10 miles away from Denver, CO
Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleDenali Ultimate PackageTechnology PackageAssist Steps; Power-RetractableSunroof; Power...
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: 1GT49REY2MF256122
Stock: MF256122
Certified Pre-Owned: No
Listed since: 06-28-2025 - $57,981fair price$2,826 below market
- 51,603 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- Len Lyall Chevrolet (9 mi away)
- Home delivery*
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Located in Aurora, CO / 9 miles away from Denver, CO
CARFAX One-Owner. Clean CARFAX. Ebony Twilight Metallic 2021 GMC Sierra 2500HD SLT 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselOdometer is 27...
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: 1GT49NEY5MF183160
Stock: T5471B
Certified Pre-Owned: No
Listed since: 06-16-2025 - Price Drop$59,499fair price$2,155 below market
- 50,742 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Castle Rock Chevrolet GMC (24 mi away)
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Located in Castle Rock, CO / 24 miles away from Denver, CO
10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/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: 1GT49PEY2MF307607
Stock: MF307607T
Certified Pre-Owned: Yes
Listed since: 06-27-2025 - New Listing$51,590good price$2,878 below market
- 104,258 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Carvana - Colorado Springs (64 mi away)
- Home delivery*
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Located in Colorado Springs, CO / 64 miles away from Denver, CO
At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...
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: 1GT19REY9MF218809
Stock: 2003623919
Certified Pre-Owned: No
Listed since: 06-05-2025 - $52,957fair price$862 above market
- 104,123 miles
- No accidents, personal use only
- 6'10” bed, 6.6l, 8cyl
- Modern Classic Motors (197 mi away)
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Located in Grand Junction, CO / 197 miles away from Denver, CO
2021 GMC Sierra 2500HD Denali 10-Speed Automatic, Jet Black Leather. 4WD Clean CARFAX. 10-Speed Automatic Duramax 6.6L V8 TurbodieselTo see more qu...
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: 1GT49REY5MF141580
Stock: 29954
Certified Pre-Owned: No
Listed since: 06-19-2025 - $56,400
- 48,107 miles
- No accidents, 1 owner, personal use only
- AutoNation Chevrolet North (10 mi away)
- Home delivery*
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Located in Denver, CO / 10 miles away from Denver, CO
Leather SeatsPacific Blue MetallicNavigation SystemKeyless StartCooled Front Seat(S)Engine; 6.6L V8Jet Black; Forge Perforated Leather Seat Trim...
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: 1GT49RE7XMF307731
Stock: MF307731
Certified Pre-Owned: No
Listed since: 06-26-2025 - $50,488fair price$475 below market
- 122,538 miles
- 1 accident, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- O'Meara GMC (13 mi away)
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Located in Denver, CO / 13 miles away from Denver, CO
Experience the O'Meara Advantage. O’Meara offers a wide range of vehicles at competitive prices, and our knowledgeable staff is dedicated to helping c...
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: 1GT49REY6MF193736
Stock: 7391GA
Certified Pre-Owned: No
Listed since: 07-25-2025 - Price Drop$49,999great price$4,100 below market
- 112,352 miles
- 1 accident, 3 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Castle Rock Chevrolet GMC (24 mi away)
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Located in Castle Rock, CO / 24 miles away from Denver, CO
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: 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: 1GT49REY9LF256195
Stock: LF256195T
Certified Pre-Owned: No
Listed since: 06-28-2025 - Price Drop$62,995good price$4,682 below market
- 61,500 miles
- No accidents, 1 owner, personal use
- 6'10” bed, 6.6l, 8cyl
- Greenwood Automotive (15 mi away)
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Located in Parker, CO / 15 miles away from Denver, CO
Greenwood Automotive is a local, family owned business in Parker, CO. 2022 GMC Sierra 2500HD Denali 4WD 10-Way Power Driver Seat Adjuster w/Lumbar, 12...
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: 1GT49REY7NF294415
Stock: TEH294415
Certified Pre-Owned: No
Listed since: 05-06-2025 - $52,889great price$2,940 below market
- 102,496 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- Johnson Auto Plaza (19 mi away)
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Located in Brighton, CO / 19 miles away from Denver, CO
**Accident-Free Carfax, 1-Owner** **Sierra 2500 Denali Crew Cab 4WD** *Long Box* *6.6L Duramax Turbo Diesel* *Leather-Trimmed Bucket Seats* *Heated an...
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: 1GT49REY4NF158985
Stock: G546461A
Certified Pre-Owned: No
Listed since: 07-26-2025 - $46,893good price$5,614 below market
- 109,789 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- ClearShift (9 mi away)
Close
Located in Highlands Ranch, CO / 9 miles away from Denver, CO
This 2022 GMC Sierra 2500HD AT4 4WD in Ebony Twilight Metallic combines rugged strength with upscale refinement, powered by a 6.6L V8 engine and 6-spe...
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: 1GT49PE70NF158669
Stock: JV158669
Certified Pre-Owned: No
Listed since: 07-17-2025 - New Listing$33,988
- 132,092 miles
- No accidents, 1 owner, personal use
- Family Trucks and Vans (1 mi away)
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Located in Denver, CO / 1 miles away from Denver, CO
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: 1GT49ME77MF311108
Stock: B50989
Certified Pre-Owned: No - $41,752good price$3,031 below market
- 61,694 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- O'Meara GMC (13 mi away)
Close
Located in Denver, CO / 13 miles away from Denver, CO
Experience the O'Meara Advantage. O’Meara offers a wide range of vehicles at competitive prices, and our knowledgeable staff is dedicated to helping 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: 1GT29ME74NF334466
Stock: 7405GS
Certified Pre-Owned: No
Listed since: 07-21-2025 - Price Drop$61,499fair price$2,682 below market
- 40,099 miles
- No accidents, personal use only
- 6'10” bed, 6.6l, 8cyl
- Castle Rock Chevrolet GMC (24 mi away)
Close
Located in Castle Rock, CO / 24 miles away from Denver, CO
Sierra 2500HD AAT4, 6-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 18" Machined Aluminum Wheels, 2 USB Ports, 2nd Row Dual USB Charg...
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: 1GT49PE76NF189957
Stock: NF189957A
Certified Pre-Owned: Yes
Listed since: 07-02-2025 - New Listing$53,998fair price$533 below market
- 67,903 miles
- No accidents, 1 owner, personal use only
- 6'10” bed, 6.6l, 8cyl
- CarMax West 104th Ave (13 mi away)
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Located in Federal Heights, CO / 13 miles away from Denver, CO
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: 1GT49RE77LF120672
Stock: 26700513
Certified Pre-Owned: No - $61,999fair price$779 below market
- 39,925 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- AutoNation Buick GMC Park Meadows (10 mi away)
- Home delivery*
Close
Located in Lone Tree, CO / 10 miles away from Denver, CO
Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleDenali Ultimate PackageTechnology PackageSunroof; PowerSun/MoonroofLeather SeatsNavig...
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: 1GT49REYXLF309714
Stock: LF309714
Certified Pre-Owned: No
Listed since: 07-23-2025 - Price Drop$51,810fair price$344 below market
- 109,169 miles
- 1 accident, 5 owners, personal use
- 6'10” bed, 6.6l, 8cyl
- Sill-Terhar Ford (17 mi away)
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Located in Broomfield, CO / 17 miles away from Denver, CO
White Frost Tricoat 2020 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2020 GMC Sierra 2500HD is rare!.
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: 1GT49REY1LF113449
Stock: L5100C
Certified Pre-Owned: No
Listed since: 06-14-2025 - Price Drop
- 66,355 miles
- No accidents, 1 owner, personal use
- 6'10” bed, 6.6l, 8cyl
- AutoNation Chevrolet North (10 mi away)
- Home delivery*
Close
Located in Denver, CO / 10 miles away from Denver, CO
Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleLeather SeatsNavigation SystemKeyless StartCooled Front Seat(S)This vehicle includes...
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: 1GT49REY0LF341880
Stock: LF341880
Certified Pre-Owned: No
Listed since: 07-26-2025 - 65,215 miles
- No accidents, 1 owner, personal use only
- 8'2” bed, 6.6l, 8cyl
- O'Meara Ford (13 mi away)
Close
Located in Northglenn, CO / 13 miles away from Denver, CO
CARFAX One-Owner. Clean CARFAX. Summit White 2022 GMC Sierra 2500HD SLE 4WD 6-Speed Automatic 6.6L V8 Local Trade, Non-Smoker, 6-Speed Automatic, 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: 1GT59ME79NF105035
Stock: MP6252
Certified Pre-Owned: No
Listed since: 06-11-2025- 32,364 miles
- No accidents, personal use only
- Sterling Auto Sales (24 mi away)
Close
Located in Franktown, CO / 24 miles away from Denver, CO
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: 1GT49REY9NF177354
Stock: 25031
Certified Pre-Owned: No
Listed since: 05-18-2025- Price Drop$62,200great price$7,126 below market
- 23,931 miles
- No accidents, 2 owners, personal use only
- 6'10” bed, 6.6l, 8cyl
- Driveway (In-stock online)
- Home delivery*
Close
Located in Temecula, CA / 795 miles away from Denver, CO
CarFax No Accidents Reported,Low Mileage,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Heads-Up Display,Heated Seats,Heated Stee...
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: 1GT49REY9MF164280
Stock: MF164280P
Certified Pre-Owned: No
Showing 1 - 21 out of 295 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 Denver, CO 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 | $45,252 | $48,014 | $50,792 |
| Clean | $44,424 | $47,088 | $49,762 |
| Average | $43,043 | $45,544 | $48,045 |
| Rough | $41,248 | $43,537 | $45,814 |
The average list price of a used 2021 GMC Sierra 2500HD in Denver, Colorado is $53,969. The average mileage on a used GMC Sierra 2500HD 2021 for sale in Denver, Colorado is 74,557. Based on the average mileage of 74,557 for used 2021 GMC Sierra 2500HD for sale in Denver, CO 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 Denver, Colorado to be $43,043.
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