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104 listings
  • New Listing
    • 39,120 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 8'2” bed, 6.6l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Bend, OR / 1,821 miles away from Indianapolis, IN

    CarFax No Accidents Reported,Rare Find,Apple CarPlay,Back-Up Camera,Bluetooth,Satellite Radio,Tow Hitch,WiFi Hotspot,4-Wheel Disc Brakes,6-Speed A/T,8...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    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: 1GT49TE76MF148333
    Stock: MF148333F
    Certified Pre-Owned: No

  • New Listing
    • 56,406 miles
    • No accidents, 3 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from TX to IN*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Houston, TX / 885 miles away from Indianapolis, IN

    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: 1GT49VE72NF158600
    Stock: 26834091
    Certified Pre-Owned: No

  • Price Drop
    $65,810
    good price
    $2,365 below market
    • 27,122 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Courtesy Buick GMC (119 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Louisville, KY / 119 miles away from Indianapolis, IN

    ONE OWNENEW HD TRADE IN***DENALI***STILL UNDER WARRANTY***, Sierra 3500HD Denali, 4D Crew Cab, 6.6L V8, 4WD, Gooseneck/5th Wheel Prep Package. CARFAX ...

    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: 1GT49WE77RF132456
    Stock: F265234A
    Certified Pre-Owned: No
    Listed since: 04-17-2025

  • Price Drop
    $82,975
    fair price
    $1,145 below market
    • 27,569 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Jeff Wyler Chrysler Jeep Dodge Ram Of Lawrenceburg (83 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Lawrenceburg, IN / 83 miles away from Indianapolis, IN

    Jeff Wyler Chrysler Dodge Jeep of Lawrenceburg is honored to offer this stunning-looking 2024 GMC Sierra 3500HD Denali Ultimate in White Frost Tricoat...

    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: 1GT49YEY3RF117585
    Stock: 28T4261A
    Certified Pre-Owned: No
    Listed since: 04-25-2025

  • 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.
    • $67,995
      fair price
      $529 below market
      • 34,865 miles
      • No accidents, 1 owner, personal use
      • 6'10” bed, 6.6l, 8cyl
      • Hubler Toyota (19 mi away)
      • AWD/4WD
      • Bluetooth
      • Navigation
      • Leather Seats
      • Sunroof/Moonroof
      Close

      Located in Indianapolis, IN / 19 miles away from Indianapolis, IN

      Heated/Cooled Leather Seats, Nav System, Heated Rear Seat, 4x4, Aluminum Wheels, Bed Liner, Hitch, AUDIO SYSTEM, 13.4 DIAGONAL PREMIUM GMC INFOTAINMEN...

      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: 1GT49VE72RF145612
      Stock: P1128
      Certified Pre-Owned: No
      Listed since: 04-23-2025

    • $68,888
      fair price
      $734 below market
      • 57,891 miles
      • No accidents, 1 owner, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • Bob Poynter Buick Chevrolet GMC (66 mi away)
      • AWD/4WD
      • Bluetooth
      • Navigation
      • Leather Seats
      • Sunroof/Moonroof
      Close

      Located in Seymour, IN / 66 miles away from Indianapolis, IN

      *4WD Tow Package Diesel Heated & Cooled Leather Bose Audio Sunroof*Come see this 2024 GMC Sierra 3500HD Denali. Its Automatic transmission and Turboch...

      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: 1GT49WEY8RF278938
      Stock: 25G775A
      Certified Pre-Owned: No
      Listed since: 04-21-2025

    • $62,595
      fair price
      $753 above market
      • 35,757 miles
      • No accidents, 1 owner, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • Groulx Automotive (194 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Leather Seats
      • Keyless Entry/Start
      Close

      Located in Monroe, MI / 194 miles away from Indianapolis, IN

      2022 GMC Sierra 3500HD AT4CARFAX One-Owner. Clean CARFAX. Priced below KBB Fair Purchase Price! Odometer is 13389 miles below market average! Sierra 3...

      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: 1GT49VEY1NF318359
      Stock: GS091A
      Certified Pre-Owned: No
      Listed since: 12-14-2024

    • New Listing
      Photos not available
      $62,998
      fair price
      $933 below market
      • 25,997 miles
      • 6'10” bed, 6.6l, 8cyl
      • Shepherd's Chevrolet GMC of Wabash (62 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Leather Seats
      • Sunroof/Moonroof
      Close

      Located in Wabash, IN / 62 miles away from Indianapolis, IN

      2022 GMC Sierra 3500HDRecent Arrival!Forest Metallic AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Jet Black With K...

      AutoCheck Vehicle History Summary Unavailable.

      Features and Specs:

      Listing Information:

      VIN: 1GT49VEY6NF220007
      Stock: W978A
      Certified Pre-Owned: No
      Listed since: 05-04-2025

    • 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
        Stock photo**
        $56,900
        fair price
        $1,827 above market
        • 83,918 miles
        • No accidents, 1 owner, personal use only
        • 6'10” bed, 6.6l, 8cyl
        • Eagleson Automotive Center (137 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Leather Seats
        • Sunroof/Moonroof
        Close

        Located in Olney, IL / 137 miles away from Indianapolis, IN

        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: 1GT49VEY2NF272380
        Stock: 25241G1
        Certified Pre-Owned: No
        Listed since: 05-03-2025

      • $62,936
        great price
        $15,030 below market
        • 35,060 miles
        • No accidents, 1 owner, personal use only
        • 6'10” bed, 6.6l, 8cyl
        • York Chrysler Dodge Jeep Ram Fiat (22 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Leather Seats
        • Sunroof/Moonroof
        Close

        Located in Plainfield, IN / 22 miles away from Indianapolis, IN

        2023 GMC Sierra 3500HD AT4 At York CDJR of Plainfield. Inventory is selling quickly so call, text or email us today to ensure this one is still avail...

        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: 1GT49VEY2PF212764
        Stock: PF24255A
        Certified Pre-Owned: No
        Listed since: 04-02-2025

      • Price Drop
        • 147,436 miles
        • No accidents, 3 owners, corporate fleet vehicle
        • 8'2” bed, 6.6l, 8cyl
        • 44 Auto Mart (133 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Keyless Entry/Start
        • Upgraded Headlights
        Close

        Located in Shepherdsville, KY / 133 miles away from Indianapolis, IN

        We are open and ready to serve you! Shop safely and conveniently from the comfort of your home. Contact us today to schedule a virtual walkaround! Loc...

        AutoCheck Vehicle History Summary

        Accident Free Vehicle: Yes

        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: 1GT49TEY3NF146002
        Stock: 28365A
        Certified Pre-Owned: No
        Listed since: 04-30-2025

      • New Listing
        • 81,729 miles
        • No accidents, 1 owner, personal use only
        • 6'10” bed, 6.6l, 8cyl
        • Expressway Chevrolet Buick GMC (167 mi away)
        • AWD/4WD
        • Bluetooth
        • Leather Seats
        • Keyless Entry/Start
        • Upgraded Headlights
        Close

        Located in Mount Vernon, IN / 167 miles away from Indianapolis, IN

        This GMC Sierra 3500HD delivers a Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission. WINTER GRILLE COVER, WHEELS, 20" (50.8 CM)...

        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: 1GT49WEY6NF315737
        Stock: NF315737C
        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.
          • 88,776 miles
          • 1 accident, 1 owner, personal use only
          • 8'2” bed, 6.6l, 8cyl
          • Tom Whiteside Auto Sales (146 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Leather Seats
          • Sunroof/Moonroof
          Close

          Located in Mount Sterling, OH / 146 miles away from Indianapolis, IN

          Forest Metallic 2022 GMC Sierra 3500HD SLT 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather....

          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: 1GT49UEY2NF144134
          Stock: 925061
          Certified Pre-Owned: No
          Listed since: 04-05-2025

        • New Listing
          $65,000
          great price
          $4,580 below market
          • 56,775 miles
          • 8'2” bed, 6.6l, 8cyl
          • Don Franklin Hardin County Ford (143 mi away)
          • AWD/4WD
          • Bluetooth
          • Navigation
          • Leather Seats
          • Sunroof/Moonroof
          Close

          Located in Radcliff, KY / 143 miles away from Indianapolis, IN

          2023 GMC Sierra 3500HD Denali 4D Crew CabThe Don Franklin Family of dealerships have proudly been serving the Kentucky area since 1968. We have over 2...

          AutoCheck Vehicle History Summary Unavailable.

          Features and Specs:

          Listing Information:

          VIN: 1GT49WEY3PF221219
          Stock: PF221219
          Certified Pre-Owned: No
          Listed since: 04-03-2025

        • New Listing
          $63,500
          good price
          $2,282 below market
          • 34,656 miles
          • No accidents, 1 owner, personal use only
          • 6'10” bed, 6.6l, 8cyl
          • Bush Auto Place (122 mi away)
          • AWD/4WD
          • Bluetooth
          • Navigation
          • Leather Seats
          • Sunroof/Moonroof
          Close

          Located in Wilmington, OH / 122 miles away from Indianapolis, IN

          **HOME OF THE BUSH ADVANTAGE**** Adaptive Cruise Control, ** Apple CarPlay/Android Auto, ** Backup Camera, ** Bluetooth, Hands-Free, ** Cooled 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: 1GT49WEY3PF179358
          Stock: P1753
          Certified Pre-Owned: No
          Listed since: 02-19-2025

          • 32,677 miles
          • No accidents, 1 owner, personal use only
          • 6'10” bed, 6.6l, 8cyl
          • Coffman Truck Sales (176 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Navigation
          • Leather Seats
          Close

          Located in Aurora, IL / 176 miles away from Indianapolis, IN

          Exhausted from looking for that one-of-a kind? This rare find is it! Some people like pulling boats. Some people like pulling other peoples trucks. No...

          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: 1GT49WEY2PF117451
          Stock: 9427
          Certified Pre-Owned: Yes
          Listed since: 11-30-2024

        • 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.
          • Stock photo**
            $67,995
            fair price
            $1,102 below market
            • 37,801 miles
            • No accidents, 2 owners, personal use only
            • 6'10” bed, 6.6l, 8cyl
            • Mann Chevrolet Buick GMC (59 mi away)
            • AWD/4WD
            • Bluetooth
            • Navigation
            • Leather Seats
            • Sunroof/Moonroof
            Close

            Located in Delphi, IN / 59 miles away from Indianapolis, IN

            This vehicle won't be on the lot long! Performance, ride, and head-turning good looks! A turbocharger is also included as an economical means of incre...

            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: 1GT49WEY9PF222360
            Stock: G5050A
            Certified Pre-Owned: No
            Listed since: 02-22-2025

          • Price Drop
            • 27,418 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
            • Upgraded Headlights
            • Tire Pressure Warnin...
            Close

            Located in Richmond, VA / 478 miles away from Indianapolis, IN

            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: 1GT49SE7XPF200335
            Stock: 2003586354
            Certified Pre-Owned: No
            Listed since: 03-26-2025

          • $62,295
            good price
            $1,718 below market
            • 53,796 miles
            • 1 accident, 1 owner, personal use only
            • 6'10” bed, 6.6l, 8cyl
            • Groulx Automotive (194 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Monroe, MI / 194 miles away from Indianapolis, IN

            2023 GMC Sierra 3500HD DenaliCARFAX One-Owner. Priced below KBB Fair Purchase Price! Sierra 3500HD Denali, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 1...

            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: 1GT49WEY6PF217293
            Stock: GS012A
            Certified Pre-Owned: No
            Listed since: 03-01-2025

          • $59,866
            fair price
            $609 above market
            • 67,427 miles
            • No accidents, 1 owner, personal use only
            • 6'10” bed, 6.6l, 8cyl
            • Bachman Chevrolet (119 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Leather Seats
            • Sunroof/Moonroof
            Close

            Located in Louisville, KY / 119 miles away from Indianapolis, IN

            Please Call for availability. This vehicle is located at Bachman Business Elite, 9802 Bluegrass Parkway, Louisville, KY 40299.

            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: 1GT49VEY7PF200349
            Stock: 24-8486A
            Certified Pre-Owned: No
            Listed since: 04-29-2025

            • 27,175 miles
            • No accidents, 1 owner, personal use only
            • 8'2” bed, 6.6l, 8cyl
            • Glockner GM Superstore (179 mi away)
            • AWD/4WD
            • Bluetooth
            • Navigation
            • Leather Seats
            • Sunroof/Moonroof
            Close

            Located in Portsmouth, OH / 179 miles away from Indianapolis, IN

            Glockner Chevrolet is proud to offer this beautiful 2023 GMC Sierra 3500HD in White Frost Tricoat. This 2023 GMC Sierra 3500HD has passed our comprehe...

            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: 1GT49WEYXPF220679
            Stock: 226657-1
            Certified Pre-Owned: No
            Listed since: 05-02-2025

          Showing 64 - 84 out of 104 listings

          Consumer Reviews for the GMC Sierra 3500HD

          Read recent reviews for the GMC Sierra 3500HD
          Overall Consumer Rating
          4 out of 5 stars1 Review
          Write a vehicle reviewSee all 1 reviews
          • 5 star
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          4 out of 5 stars

          The designers and engineers should drive it more

          Mike Langford, 01/16/2020
          2017 GMC Sierra 3500HD Denali 4dr Crew Cab 4WD LB DRW (6.0L 8cyl 6A)
          The Nav system is almost useless as far as address input, The 4 wheel selector knob doesn't need to above the very similar headlight knob, Why not put a DEF gauge in it? When DEF warning triggers the DIC, no other information is available until the DEF tank is filled! Entertainment system (CD, books on disk and downloaded library books) startup again when I approach the vehicle … (phone in my pocket) and the engine is running. I have lost my place in many books many times because of this. The backup camera surely came from a Cracker Jacks box, substandard quality. The center display will ruin your night vision when put in reverse (it could use a dimmer/off switch). And why not allow full time use of the back up camera and back up lighting? (I live and work on my farm). Steering wheel buttons could be a little more intuitive, It's easy to turn on the steering wheel heater when the intent was to reduce the cruise speed. My truck has the 6.6 Duramax (awsome!) and I drive about 10k miles/mo. Needless to say, I'm in it a lot. Don't misunderstand, I love my truck but like I said in the beginning, the design and engineering people should have to drive their creations for a month or so. How did someone devise the notion to put the DEF filler neck under the hood and on the passenger side firewall? A common problem and more future problems will occur as the caustic DEF fluid splashes out of the filler neck, it drains down on top of and puddles in the wiring harness on the bottom of the DEF tank where the wires go into the bottom of the tank. It's happened once and it damaged the DEF tank heater... thingie. Luckily it was under extended warranty. And one thing Edmunds, I couldn't find the 6.6 Duramax option on your drop down menus. There all 6.0s
          Report abuse
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          * Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.