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  • New Listing
    Stock photo**
    $54,495
    good price
    $4,001 below market
    • 90,507 miles
    • 1 accident, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Holman Lincoln Mount Laurel (12 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Mt. Laurel, NJ / 12 miles away from Philadelphia, PA

    10-Speed Automatic, 4WD, Jet Black Leather. Holman Lincoln Mt. Laurel is proud to offer this fantastic 2021 GMC Sierra 2500HD. Denali Ebony Twilight M...

    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

  • $62,987
    fair price
    $1,675 above market
    • 47,905 miles
    • No accidents, 2 owners, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Morgan Automotive (66 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Manheim, PA / 66 miles away from Philadelphia, PA

    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

  • New Listing
    $56,998
    fair price
    $436 below market
    • 78,290 miles
    • 1 accident, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax Wayne (82 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wayne, NJ / 82 miles away from Philadelphia, PA

    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

  • $53,900
    great price
    $9,516 below market
    • 90,445 miles
    • 1 accident, 3 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • BM MotorCars (65 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Linden, NJ / 65 miles away from Philadelphia, PA

    NAVIGATION SYSTEM, BRAKE ASSIST, BLIND SPOT MONITORING, BACKUP CAMERA, SUNROOF, BLUETOOTH CONNECTIVITY, COOLED SEATS, HEATED LEATHER SEATS, HEATED SEA...

    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: 1GT49REY5NF124019
    Stock: 124019C01
    Certified Pre-Owned: No
    Listed since: 06-17-2025

  • Advertisement

    4 Offers Nearby

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 6 Colors
    • 2 Trims
    • 10 Packages
    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.
    • 54,685 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Star GMC Quakertown (36 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Quakertown, PA / 36 miles away from Philadelphia, PA

    2021 GMC Sierra 2500HD Summit White Denali Ultimate package 4WD 10-Speed Automatic 4D Crew Cab Recent Arrival!Summer Sale-A-Thon! Star is kicking off ...

    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: 1GT49REY2MF134098
    Stock: Q450443A
    Certified Pre-Owned: No
    Listed since: 07-22-2025

  • $56,900
    great price
    $6,488 below market
    • 52,444 miles
    • No accidents, 3 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Preston Ford of Denton (84 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Denton, MD / 84 miles away from Philadelphia, PA

    Sierra 2500HD AAT4, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Summit White, Jet Black With Kalahari Accents Leather.Priced be...

    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: 1GT49PEY8LF346281
    Stock: F242420C
    Certified Pre-Owned: No
    Listed since: 07-12-2025

    • 58,377 miles
    • Insurance loss reported, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Mr. Car of Glen Burnie (95 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Glen Burnie, MD / 95 miles away from Philadelphia, PA

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Issue reported

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49REY4MF131610
    Stock: MRC131610D
    Certified Pre-Owned: No
    Listed since: 05-05-2023

  • New Listing
    $60,590
    good price
    $3,648 below market
    • 49,940 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Carvana - Baltimore (83 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Baltimore, MD / 83 miles away from Philadelphia, PA

    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: 1GT49REY8NF243523
    Stock: 2003839227
    Certified Pre-Owned: No
    Listed since: 07-02-2025

  • Advertisement

    4 Offers Nearby

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 6 Colors
    • 2 Trims
    • 10 Packages
    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.
  • $55,860
    good price
    $3,603 below market
    • 67,357 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Bob Weaver Chevrolet GMC (75 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pottsville, PA / 75 miles away from Philadelphia, PA

    New Tires, ***For Current Pricing Visit www.bobweaverauto.com***, 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.Clean CARFAX.4WD 10...

    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: 1GT49PEY3LF132654
    Stock: G25577A
    Certified Pre-Owned: No
    Listed since: 06-10-2025

  • Price Drop
    $56,699
    fair price
    $815 below market
    • 40,954 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Matt Blatt Mitsubishi (17 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Glassboro, NJ / 17 miles away from Philadelphia, PA

    **G22851A 2022 GMC Sierra 2500HD AT4 Fully Loaded, Ready to Tow, Work, and Impress**This Summit White 2022 GMC Sierra 2500HD AT4 4WD blends off-road 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: 1GT49PE79NF225656
    Stock: G22851A
    Certified Pre-Owned: No
    Listed since: 06-10-2025

  • $62,900
    good price
    $6,337 below market
    • 15,870 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Decozen Chrysler Dodge Jeep Ram (77 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Verona, NJ / 77 miles away from Philadelphia, 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: 1GT49PEY0LF221310
    Stock: 5873P
    Certified Pre-Owned: No

  • New Listing
    $64,995
    fair price
    $2,936 below market
    • 36,095 miles
    • 1 accident, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Star GMC Quakertown (36 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Quakertown, PA / 36 miles away from Philadelphia, PA

    GM CERTIFIED, CARFAX 1 OWNER, BOUGHT HERE, LOCAL TRADE, 3.42 Axle Ratio, 8 Multicolor Driver Instrument Info Display, AT4 Preferred Package, AT4 Premi...

    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: 1GT49PEY8LF271503
    Stock: Q450344A
    Certified Pre-Owned: Yes
    Listed since: 07-28-2025

  • Advertisement

    4 Offers Nearby

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 6 Colors
    • 2 Trims
    • 10 Packages
    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.
  • $57,546
    fair price
    $250 below market
    • 74,722 miles
    • 2 accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • O'Neil GMC (15 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Warminster, PA / 15 miles away from Philadelphia, PA

    This 2020 GMC Sierra 2500HD Denali in Summit White features: Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WDOur model lineup is second to none! ...

    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: 1GT49REY8LF348818
    Stock: G12656A
    Certified Pre-Owned: No
    Listed since: 05-07-2025

  • Price Drop
    $56,939
    fair price
    $1,081 above market
    • 59,954 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Patriot Buick GMC (35 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Boyertown, PA / 35 miles away from Philadelphia, PA

    CARFAX One-Owner. 2022 GMC Sierra 2500HD Denali White Frost Tricoat GMC Certified Pre-Owned Certified, 6-Speed Automatic, 4WD, Dark Walnut/Dark Ash Gr...

    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: 1GT49RE79NF193917
    Stock: S3917
    Certified Pre-Owned: Yes
    Listed since: 02-28-2025

    • 33,105 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Performance Buick GMC of Woodbridge (62 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Woodbridge, NJ / 62 miles away from Philadelphia, PA

    10-Speed Automatic, 4WD, Jet Black w/Forge Perforated Leather-Appointed Front Seat Trim. Odometer is 18161 miles below market average!** OIL CHANGES 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: 1GT19REY8NF167126
    Stock: GW1058
    Certified Pre-Owned: No
    Listed since: 06-18-2025

  • New Listing
    $61,800
    fair price
    $33 above market
    • 37,407 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Kelly Buick GMC (44 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Emmaus, PA / 44 miles away from Philadelphia, PA

    Odometer is 39923 miles below market average!CARFAX One-Owner. 2020 GMC Sierra 2500HD Denali 4WD Onyx BlackOur Risk Free story includes: 1) 3 day...

    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: 1GT49REY3LF102677
    Stock: BP6215
    Certified Pre-Owned: No
    Listed since: 07-29-2025

  • Advertisement

    4 Offers Nearby

    2025 GMC Sierra 2500HD
    $46,300
    starting MSRP
    • 6 Colors
    • 2 Trims
    • 10 Packages
    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
    $43,894
    fair price
    $580 below market
    • 46,395 miles
    • 8'2” bed, 6.6l, 8cyl
    • Star GMC (51 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Easton, PA / 51 miles away from Philadelphia, PA

    **CLEAN CARFAX 1 OWNER**, 2-Speed Electronic Shift Transfer Case, Chrome Surround Grille w/Black Mesh, Convenience Package, Deep-Tinted Glass, Electri...

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    Listing Information:

    VIN: 1GT49LE74NF102016
    Stock: 451351A
    Certified Pre-Owned: No
    Listed since: 07-31-2025

    • 79,337 miles
    • 1 accident, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Preston Ford of Denton (84 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Denton, MD / 84 miles away from Philadelphia, PA

    Sierra 2500HD SLE, Double Cab, 6.6L V8, 6-Speed Automatic, 4WD, Onyx Black, Black Cloth.Founded in 1975, Preston has been providing a friendly, no-has...

    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: 1GT59ME75NF114993
    Stock: DX240920A
    Certified Pre-Owned: No
    Listed since: 06-18-2025

    • 123,291 miles
    • No accidents, 3 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Classic Motors (98 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Finksburg, MD / 98 miles away from Philadelphia, PA

    ***MD STATE INSPECTED**2022 GMC SIERRA 2500HD DOUBLE CAB ***LONG BED***6.6 V8 TURBO DIESEL** 10-SPEED ALLISON TRANSMISSION**SLT PREFERRED PACKAGE***4X...

    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: 1GT59NEY9NF257878
    Stock: NF257878
    Certified Pre-Owned: No

  • Price Drop
    $62,200
    great price
    $6,918 below market
    • 23,931 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Temecula, CA / 2,343 miles away from Philadelphia, PA

    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

  • New Listing
    $59,590
    good price
    $5,182 below market
    • 53,772 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Charlotte, NC / 450 miles away from Philadelphia, PA

    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: 1GT49REY2MF301219
    Stock: 2003799744
    Certified Pre-Owned: No
    Listed since: 06-10-2025

Showing 1 - 21 out of 339 listings

Consumer Reviews for the GMC Sierra 2500HD

Read recent reviews for the GMC Sierra 2500HD
Overall Consumer Rating
4.4 out of 5 stars24 Reviews
Write a vehicle reviewSee all 24 reviews
  • 5 star
    (75%)
  • 4 star
    (8%)
  • 3 star
    (4%)
  • 2 star
    (8%)
  • 1 star
    (4%)
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 2021 GMC Sierra 2500HD in Philadelphia, PA Values

Estimated values
2021 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$47,377$50,270$53,177
Clean$46,510$49,300$52,099
Average$45,065$47,683$50,302
Rough$43,186$45,582$47,966

The average list price of a used 2021 GMC Sierra 2500HD in Philadelphia, Pennsylvania is $57,384. The average mileage on a used GMC Sierra 2500HD 2021 for sale in Philadelphia, Pennsylvania is 57,847. Based on the average mileage of 57,847 for used 2021 GMC Sierra 2500HD for sale in Philadelphia, PA 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 Philadelphia, Pennsylvania to be $45,065.

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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.