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363 listings
  • $53,868
    great price
    $5,339 below market
    • 75,435 miles
    • No accidents, 2 owners, personal use
    • 6'10” bed, 6.6l, 8cyl
    • John Thornton Buick GMC (56 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Carrollton, GA / 56 miles away from Stone Mountain, GA

    Recent Arrival! Thank you for considering this beautiful 2020 GMC Sierra 2500HD AT4 finished in stunning Onyx Black with Jet Black With Kalahari Accen...

    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: 1GT49PEY2LF102903
    Stock: SG1001A
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • New Listing
    $60,789
    fair price
    $102 above market
    • 61,094 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Southtowne Chevrolet Buick GMC (45 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Newnan, GA / 45 miles away from Stone Mountain, GA

    **ONE OWNER AUTOCHECK, **NO ACCIDENTS AUTOCHECK, **LOCAL TRADE-IN, **FULLY SERVICED BY A FACTORY TRAINED TECHNICIAN, **REAR BACKUP CAMERA, **BLUETOOTH...

    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: 1GT49REY6LF286013
    Stock: 2E40445A
    Certified Pre-Owned: No
    Listed since: 05-27-2025

    • 53,308 miles
    • No accidents, 1 owner, personal use only
    • Alm Mall Of Georgia (21 mi away)
    • Forge Perforated Lea...
    • Heated & Ventilated ...
    • HD Rear Vision Camer...
    • Apple CarPlay
    • Rear Cross Traffic A...
    Close

    Located in Buford, GA / 21 miles away from Stone Mountain, GA

    $94K ORIGINAL MSRP !!!..DELANI ULTIMATE PACKAGE..DRIVER ALERT PACKAGE II..DRIVER ALERT PACKAGE I..TRAILERING PACKAGE..X31 OFF-ROAD PACKAGE..SEAT, UP-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: 1GT49REY3LF207073
    Stock: LF207073
    Certified Pre-Owned: No
    Listed since: 03-04-2025

  • New Listing
    • 63,889 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Andean Chevrolet (27 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Cumming, GA / 27 miles away from Stone Mountain, GA

    CARFAX One-Owner. This one-owner 2020 GMC Sierra 2500HD AT4 is very well equipped with a 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Pow...

    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: 1GT49PEY8LF314463
    Stock: S2092A
    Certified Pre-Owned: No
    Listed since: 05-29-2025

  • 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
    $58,970
    good price
    $3,686 below market
    • 60,135 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • ALM Hyundai Athens (42 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Athens, GA / 42 miles away from Stone Mountain, GA

    X31 OFF-ROAD PKG..TECHNOLOGY PACKAGE..DENALI BLACK DIAMOND EDITION..BLIND SPOT..COOLED HEATED SEATS..LANE DEPARTURE..LEATHER SEATS..NAVIGATION SYSTEM....

    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: 1GT19REY2MF221731
    Stock: MF221731
    Certified Pre-Owned: No
    Listed since: 03-07-2025

  • New Listing
    $59,970
    good price
    $4,059 below market
    • 52,181 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • ALM Kennesaw (29 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Kennesaw, GA / 29 miles away from Stone Mountain, GA

    81K$ MSRP..DRIVER ALERT PKG I..DRIVER ALERT PKG II..X31 OFF-ROAD PKG..HEATED SEATS..LANE KEEP ASISST..LANE DEPARTURE WARNING..WHEELS: 20" MULTI-DIMENS...

    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: 1GT19REY8MF239411
    Stock: MF239411
    Certified Pre-Owned: No
    Listed since: 05-30-2025

  • New Listing
    Stock photo**
    $67,222
    fair price
    $2,240 below market
    • 21,963 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • John Megel Chevrolet (38 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Dawsonville, GA / 38 miles away from Stone Mountain, GA

    10-Speed Automatic, 4WD, Dark Walnut/Dark Ash Grey Leather, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrumen...

    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: 1GT49REYXMF208125
    Stock: 20086
    Certified Pre-Owned: No
    Listed since: 05-29-2025

  • New Listing
    Stock photo**
    $57,950
    fair price
    $1,287 below market
    • 28,903 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Jim Hardman Buick GMC (37 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Gainesville, GA / 37 miles away from Stone Mountain, GA

    Due to our amazing pricing, please call before coming down to ensure the vehicle is still available! **NAVIGATION**, **LEATHER**, **HEATED/AC SEATS**,...

    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: 1GT12SEY1KF281590
    Stock: 43860B
    Certified Pre-Owned: No
    Listed since: 05-28-2025

  • 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.
  • New Listing
    Stock photo**
    $58,908
    fair price
    $1,035 below market
    • 83,841 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • John Megel Chevrolet (38 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Dawsonville, GA / 38 miles away from Stone Mountain, GA

    10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Ins...

    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: 1GT49PEY2MF227613
    Stock: 20088
    Certified Pre-Owned: No
    Listed since: 05-29-2025

  • New Listing
    Stock photo**
    $56,881
    fair price
    $920 above market
    • 116,266 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • John Thornton Buick GMC (56 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Carrollton, GA / 56 miles away from Stone Mountain, GA

    Recent Arrival! Thank you for considering this beautiful 2021 GMC Sierra 2500HD Denali finished in stunning Onyx Black with Dark Walnut/Dark Ash Grey ...

    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: 1GT49REY4MF177776
    Stock: SG1235A
    Certified Pre-Owned: No
    Listed since: 05-31-2025

  • Price Drop
    • 48,899 miles
    • No accidents, 1 owner, personal use only
    • ALM Marietta (23 mi away)
    • Perforated Leather-A...
    • Heated & Ventilated ...
    • Sun/moonroof
    • HD Rear Vision Camer...
    • Apple CarPlay
    Close

    Located in Marietta, GA / 23 miles away from Stone Mountain, GA

    $77K ORIGINAL MSRP !!!..TRAILERING PACKAGE..X31 OFF-ROAD PACKAGE..DRIVER ALERT PACKAGE I & II..SNOW PLOW PREP/CAMPER PACKAGE - VYU..AT4 PREMIUM PLUS 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: 1GT49PEY6MF139311
    Stock: MF139311
    Certified Pre-Owned: No
    Listed since: 04-08-2025

    • 75,988 miles
    • No accidents, personal use only
    • ALM Marietta (23 mi away)
    • Forge Perforated Lea...
    • Heated Driver & Fron...
    • Sun/moonroof
    • Backup camera
    • Apple CarPlay
    Close

    Located in Marietta, GA / 23 miles away from Stone Mountain, GA

    $94K ORIGINAL MSRP !!!..DRIVER ALERT PACKAGE I & II..BED VIEW CAMERA CAMERA IN THE CHMSL..SEAT, UP-LEVEL REAR WITH STORAGE PACKAGE..TRAILERING PACKAGE...

    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: 1GT19REY0MF285122
    Stock: MF285122
    Certified Pre-Owned: No
    Listed since: 04-05-2025

  • 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.
    • 71,304 miles
    • No accidents, 1 owner, personal use only
    • ALM Chrysler Dodge Jeep Ram (96 mi away)
    • 4WD
    • Forge Perforated Lea...
    • Heated Driver & Fron...
    • WHEELS 20"..SUN/MOON...
    • Backup camera
    Close

    Located in Perry, GA / 96 miles away from Stone Mountain, GA

    DRIVER ALERT PKG I..DRIVER ALERT PKG II..X31 OFF-ROAD PKG..NAVIGATION..BLIND SPOT MONITOR..HEATED SEATS..COOLED SEATS..PREMIUM AUDIO..WHEELS 20"..SUN/...

    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: 1GT49REY1MF302720
    Stock: MF302720
    Certified Pre-Owned: No
    Listed since: 03-11-2025

  • New Listing
    $59,998
    great price
    $6,139 below market
    • 19,504 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from CO to GA*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Parker, CO / 1,207 miles away from Stone Mountain, GA

    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: 1GT49REY5LF147619
    Stock: 27229234
    Certified Pre-Owned: No

  • New Listing
    • 79,218 miles
    • No accidents, personal use only
    • ALM Newnan (44 mi away)
    • Perforated Leather-A...
    • Heated & Ventilated ...
    • HD Rear Vision Camer...
    • Apple CarPlay
    • Remote keyless entry
    Close

    Located in Newnan, GA / 44 miles away from Stone Mountain, GA

    Black 2021 4D Crew Cab GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Black Leather.BACKUP CAMERA...

    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: 1GT19PEY4MF217068
    Stock: MF217068
    Certified Pre-Owned: No
    Listed since: 05-30-2025

  • Price Drop
    $55,970
    good price
    $6,534 below market
    • 32,402 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • ALM Gwinnett (11 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Duluth, GA / 11 miles away from Stone Mountain, GA

    AT4 PREFERRED EQUIPMENT..X31 OFF-ROAD..NAVIGATION..HEATED & COOLED SEATS..BACKUP CAMERA..BLUETOOTH..SMART DEVICE INTEGRATION..KEYLESS ENTRY..2022 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: 1GT19PE78NF173813
    Stock: NF173813
    Certified Pre-Owned: No
    Listed since: 11-07-2024

  • 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.
  • $63,989
    good price
    $6,560 below market
    • 56,771 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Peachtree Mitsubishi (10 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Atlanta, GA / 10 miles away from Stone Mountain, GA

    Peachtree Mitsubishi, Atlanta's Premiere Mitsubishi Dealership, is offering this exceptional pre-owned vehicle. Call or email now for exclusive online...

    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: 1GT49PEY0NF257761
    Stock: PTM57761
    Certified Pre-Owned: No
    Listed since: 05-02-2025

  • $47,900
    great price
    $3,896 below market
    • 122,146 miles
    • 1 accident, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Preferred Motors & Classics LLC (76 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lagrange, GA / 76 miles away from Stone Mountain, GA

    1GT49REY5LF3***** 3***76 120,875 2020 GMC Sierra 2500 HD Crew Cab Denali Pickup 4D 6 1/2 ft V8, Turbo Diesel, 6.6 Liter Automatic, 10-Spd Allison P...

    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: 1GT49REY5LF324976
    Stock: 324976
    Certified Pre-Owned: No
    Listed since: 10-09-2024

  • $61,138
    good price
    $3,313 below market
    • 41,269 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Carriage Kia of Woodstock (32 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Woodstock, GA / 32 miles away from Stone Mountain, GA

    10-Speed Automatic, 4WD, Jet Black Leather. Odometer is 53348 miles below market average! Discover the perfect pre-owned vehicle with confidence! Our ...

    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: 1GT49REY7LF286778
    Stock: W24119A
    Certified Pre-Owned: No
    Listed since: 04-24-2025

  • $56,998
    fair price
    $1,884 below market
    • 84,518 miles
    • 1 accident, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from LA to GA*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Baton Rouge, LA / 469 miles away from Stone Mountain, GA

    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: 1GT49PEY8LF128227
    Stock: 26961879
    Certified Pre-Owned: No

  • New Listing
    $54,990
    fair price
    $1,005 below market
    • 83,566 miles
    • 6'10” bed, 6.6l, 8cyl
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sacramento, CA / 2,092 miles away from Stone Mountain, GA

    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 Unavailable.

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY9LF130578
    Stock: 2003678261
    Certified Pre-Owned: No
    Listed since: 04-24-2025

Showing 1 - 21 out of 363 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
4.4 out of 5 stars18 Reviews
Write a vehicle reviewSee all 18 reviews
  • 5 star
    (72%)
  • 4 star
    (11%)
  • 3 star
    (6%)
  • 2 star
    (11%)
  • 1 star
    (0%)
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 2020 GMC Sierra 2500HD in Stone Mountain, GA Values

Estimated values
2020 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$43,333$46,705$49,957
Clean$42,415$45,688$48,840
Average$40,884$43,993$46,979
Rough$38,895$41,789$44,559

The average list price of a used 2020 GMC Sierra 2500HD in Stone Mountain, Georgia is $58,260. The average mileage on a used GMC Sierra 2500HD 2020 for sale in Stone Mountain, Georgia is 63,457. Based on the average mileage of 63,457 for used 2020 GMC Sierra 2500HD for sale in Stone Mountain, GA 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 2020 in Stone Mountain, Georgia to be $40,884.

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