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277 listings
  • New Listing
    • 179,269 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Beck & Masten North GMC Buick (20 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Houston, TX / 20 miles away from Houston, TX

    Excellent Condition. NAV, Heated Leather Seats, Turbo, Alloy Wheels, Bed Liner, Tow Hitch, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE...

    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: 1GT49PEY6MF196544
    Stock: MF196544
    Certified Pre-Owned: No
    Listed since: 04-19-2025

    • 119,527 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Mac Haik Toyota (28 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in League City, TX / 28 miles away from Houston, TX

    Onyx Black 2021 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leat...

    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: 1GT49PEY2MF108895
    Stock: P14665
    Certified Pre-Owned: No
    Listed since: 04-17-2025

    • 27,321 miles
    • 1 accident, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • DeMontrond Chrysler Dodge Jeep Ram (32 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Conroe, TX / 32 miles away from Houston, TX

    Onyx Black 2021 GMC Sierra 2500HD Denali Denali Priced below KBB Fair Purchase Price! CARFAX One-Owner. 10-Speed Automatic, 4WD, Jet Black Leather. Od...

    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: 1GT49REY9MF108968
    Stock: XMF108968
    Certified Pre-Owned: No
    Listed since: 03-20-2025

    • 50,130 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • AutoNation USA Gulf Freeway (20 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Houston, TX / 20 miles away from Houston, TX

    Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleLeather SeatsOnyx BlackNavigation SystemKeyless StartCooled Front Seat(S)Jet Black; 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: 1GT49REY1MF154164
    Stock: MF154164
    Certified Pre-Owned: No
    Listed since: 04-08-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
      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
      • 50,086 miles
      • No accidents, 1 owner, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • DeMontrond Buick GMC (15 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Navigation
      • Leather Seats
      Close

      Located in Houston, TX / 15 miles away from Houston, TX

      At DeMontrond Buick GMC, we’re committed to delivering a trusted, family-owned dealership experience in Houston. Since 1953, our mission has been to 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: 1GT49REY6MF264241
      Stock: TMF264241
      Certified Pre-Owned: No
      Listed since: 04-11-2025

      • 28,144 miles
      • No accidents, 2 owners, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • Gay Buick GMC (31 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Navigation
      • Leather Seats
      Close

      Located in Dickinson, TX / 31 miles away from Houston, TX

      Certified. Pacific Blue Metallic 2022 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Driver Alert Package I (Lane Change ...

      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: 1GT49REY4NF222006
      Stock: 046543A
      Certified Pre-Owned: Yes
      Listed since: 03-22-2025

      • 58,936 miles
      • No accidents, 2 owners, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • Gay Buick GMC (31 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Navigation
      • Leather Seats
      Close

      Located in Dickinson, TX / 31 miles away from Houston, TX

      Clean CARFAX. Forest Metallic 2022 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Denali Ultimate Package (Power Sunroof)...

      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: 1GT49REY3NF291463
      Stock: 046840A
      Certified Pre-Owned: No
      Listed since: 03-30-2025

      • 63,005 miles
      • 1 accident, 2 owners, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • DeMontrond Chrysler Dodge Jeep Ram (32 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Navigation
      • Leather Seats
      Close

      Located in Conroe, TX / 32 miles away from Houston, TX

      Onyx Black 2020 GMC Sierra 2500HD Denali Denali Priced below KBB Fair Purchase Price! **HOME OF WARRANTY FOREVER**, NEW TIRES, 10-Speed Automatic, 4WD...

      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: 1GT49REY7LF266434
      Stock: TLF266434
      Certified Pre-Owned: No
      Listed since: 04-14-2025

    • Advertisement

      Special offers available

      2025 GMC Sierra HD Denali
      $46,300
      starting MSRP
        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.
        • 54,180 miles
        • Insurance loss reported, 1 owner, personal use
        • 6'10” bed, 6.6l, 8cyl
        • America's Xtreme Auto (13 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Leather Seats
        • Sunroof/Moonroof
        Close

        Located in Houston, TX / 13 miles away from Houston, TX

        Clean Title We Can Finance! We Take Trade IN-S! CALL US AT 832-553-0010 What makes us different? We specialize in hand selecting our pre-owned invento...

        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: Yes

        Lemon Status: No

        Free History Report: No

        Features and Specs:

        Listing Information:

        VIN: 1GT49NEYXNF153234
        Stock: 21473
        Certified Pre-Owned: No
        Listed since: 07-18-2024

        • 46,114 miles
        • No accidents, 1 owner, personal use only
        • 6'10” bed, 6.6l, 8cyl
        • Fred Haas Toyota Country (22 mi away)
        • Home delivery*
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Leather Seats
        • Sunroof/Moonroof
        Close

        Located in Houston, TX / 22 miles away from Houston, TX

        Pacific Blue Metallic 2022 GMC Sierra 2500HD SLT 4WD 6-Speed Automatic 6.6L V8 ***CLEAN CARFAX HISTORY***, ***ONE OWNER***, ***WELL MAINTAINED***, ***...

        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: 1GT49NE76NF136776
        Stock: F136776A
        Certified Pre-Owned: No
        Listed since: 03-26-2025

      • New Listing
        Stock photo**
        • 72,154 miles
        • No accidents, 2 owners, personal use only
        • 6'10” bed, 6.6l, 8cyl
        • Henson Chrysler Dodge Jeep Ram (84 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Navigation
        • Leather Seats
        Close

        Located in Madisonville, TX / 84 miles away from Houston, TX

        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: 1GT49REY1LF120837
        Stock: LF120837T
        Certified Pre-Owned: No
        Listed since: 04-18-2025

      • New Listing
        • 29,935 miles
        • No accidents, 2 owners, personal use only
        • 6'10” bed, 6.6l, 8cyl
        • Texan GMC Buick (8 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Navigation
        • Leather Seats
        Close

        Located in Humble, TX / 8 miles away from Houston, TX

        Recent Arrival!Texan GMC Buick is very proud to offer this handsome-looking 2022 GMC Sierra 2500HD Denali. 4WD Quicksilver MetallicCertified.Service 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: 1GT49RE79NF230559
        Stock: T7980
        Certified Pre-Owned: No
        Listed since: 04-21-2025

      • Advertisement

        Special offers available

        2025 GMC Sierra HD Denali
        $46,300
        starting MSRP
          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.
          • 57,956 miles
          • No accidents, 1 owner, personal use only
          • 8'2” bed, 6.6l, 8cyl
          • Gabriel/Jordan Ford (58 mi away)
          • Back-up camera
          • Bluetooth
          • Upgraded Headlights
          • Tire Pressure Warnin...
          • USB Inputs
          Close

          Located in Livingston, TX / 58 miles away from Houston, TX

          This 2022 GMC Sierra 2500HD Pro in Quicksilver Metallic comes with the following features: Duramax 6.6L V8 Turbodiesel 10-Speed Automatic RWD 10-Speed...

          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: 1GT58LEY9NF304849
          Stock: NF304849
          Certified Pre-Owned: No
          Listed since: 01-18-2025

          • 165,804 miles
          • No accidents, 1 owner, personal use only
          • 6'10” bed, 6.6l, 8cyl
          • Space City Toyota (8 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Leather Seats
          • Sunroof/Moonroof
          Close

          Located in Humble, TX / 8 miles away from Houston, TX

          1-Owner, 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 20 Machined Aluminum Wheels, 8 Multicolor Driver Information Center, AT4 Hi...

          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: 1GT49PEY3MF118691
          Stock: 51448A
          Certified Pre-Owned: No
          Listed since: 02-23-2025

          • 95,524 miles
          • No accidents, 1 owner, personal use only
          • 6'10” bed, 6.6l, 8cyl
          • Carsandpickups.com (35 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Leather Seats
          • Keyless Entry/Start
          Close

          Located in Katy, TX / 35 miles away from Houston, TX

          Stock: 133129**1 Owner** 4x4**6.6L V8 Gasoline Engine**Automatic Transmission**Crew Cab AT4 Package**20 Factory Alloy Wheels**LT35x12.50R20 Tires**Fac...

          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: 1GT49PE78NF133129
          Stock: 133129
          Certified Pre-Owned: No
          Listed since: 11-21-2024

          • 103,311 miles
          • 1 accident, 1 owner, corporate fleet vehicle
          • 6'10” bed, 6.6l, 8cyl
          • Mac Haik Toyota (28 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Navigation
          • Leather Seats
          Close

          Located in League City, TX / 28 miles away from Houston, TX

          Onyx Black 2022 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black Leather.Recent Arrival!...

          AutoCheck Vehicle History Summary

          Accident Free Vehicle: No

          Personal Use Only: No

          History Provider: AutoCheck

          Title Details: Clean Title

          Salvage Vehicle: No

          Frame Damage: No

          Theft History: Yes

          Lemon Status: No

          Free History Report: No

          Features and Specs:

          Listing Information:

          VIN: 1GT49REY9NF300716
          Stock: P14592
          Certified Pre-Owned: No
          Listed since: 03-20-2025

        • Advertisement

          Special offers available

          2025 GMC Sierra HD Denali
          $46,300
          starting MSRP
            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.
            • 32,494 miles
            • 1 accident, 1 owner, corporate fleet vehicle
            • 6'10” bed, 6.6l, 8cyl
            • Carsandpickups.com (35 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Keyless Entry/Start
            • Upgraded Headlights
            Close

            Located in Katy, TX / 35 miles away from Houston, TX

            Stock: 131266**1 Owner** 4x4**6.6L V8 Turbo Diesel Engine**Allison Automatic Transmission**Crew Cab SLE Package**22 Custom Fuel Alloy Wheels**LT35x12....

            AutoCheck Vehicle History Summary

            Accident Free Vehicle: No

            Personal Use Only: No

            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: 1GT49MEY9NF131266
            Stock: 131266
            Certified Pre-Owned: No
            Listed since: 05-31-2024

          • New Listing
            • 32,850 miles
            • No accidents, 1 owner, personal use only
            • 6'10” bed, 6.6l, 8cyl
            • Wiesner Buick GMC (34 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Conroe, TX / 34 miles away from Houston, TX

            Recent Arrival! CARFAX One-Owner. Clean CARFAX. Certified. Ebony Twilight Metallic 2023 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V...

            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: 1GT49REY2PF224906
            Stock: SC5489A
            Certified Pre-Owned: Yes
            Listed since: 04-18-2025

            • 89,888 miles
            • 1 accident, 4 owners, personal use
            • 6'7” bed, 6l, 8cyl
            • AutoNation USA Gulf Freeway (20 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Houston, TX / 20 miles away from Houston, TX

            2500Hd Slt Gas Premium Plus PackageLpo; Assist Steps; Chromed Tubular; 6" RectangularLpo; Body Color Wheel Arch MoldingsBed Liner; Spray-OnSeats; ...

            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: 1GT12REG8KF266035
            Stock: KF266035
            Certified Pre-Owned: No
            Listed since: 04-09-2025

            • 48,305 miles
            • No accidents, 1 owner, personal use only
            • 6'10” bed, 6.6l, 8cyl
            • Beck & Masten North GMC Buick (20 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Upgraded Headlights
            • Tire Pressure Warnin...
            Close

            Located in Houston, TX / 20 miles away from Houston, TX

            Excellent Condition. Pro trim. Running Boards, Back-Up Camera, 4x4, Tow Hitch, TRANSMISSION, 6-SPEED AUTOMATIC, HEAV... CONVENIENCE PACKAGE, ENGINE, 6...

            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: 1GT49LE7XPF259844
            Stock: PF259844
            Certified Pre-Owned: No
            Listed since: 03-25-2025

            • 97,350 miles
            • No accidents, 1 owner, personal use only
            • 6'10” bed, 6.6l, 8cyl
            • Yaklin Ford (58 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Richwood, TX / 58 miles away from Houston, TX

            Hunter Metallic 2021 GMC Sierra 2500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselThis 2021 GMC Sierra 2500HD is available for immediate...

            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: 1GT49REY0MF307004
            Stock: REF59809A
            Certified Pre-Owned: No
            Listed since: 01-21-2025

          Showing 1 - 21 out of 277 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.
          Report abuse

          Used 2021 GMC Sierra 2500HD in Houston, TX Values

          Estimated values
          2021 GMC Sierra 2500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
          ConditionTrade-InPrivate PartyDealer Retail
          Outstanding$38,206$41,527$44,867
          Clean$37,507$40,726$43,957
          Average$36,341$39,391$42,441
          Rough$34,826$37,655$40,470

          The average list price of a used 2021 GMC Sierra 2500HD in Houston, Texas is $54,661. The average mileage on a used GMC Sierra 2500HD 2021 for sale in Houston, Texas is 71,537. Based on the average mileage of 71,537 for used 2021 GMC Sierra 2500HD for sale in Houston, TX 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 Houston, Texas to be $36,341.

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