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189 listings
    • 76,519 miles
    • No accidents, 1 owner, personal use
    • 6'10” bed, 6.6l, 8cyl
    • Rivard Buick GMC (162 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Tampa, FL / 162 miles away from West Palm Beach, FL

    CARFAX One-Owner. White Frost Tricoat 2021 GMC Sierra 3500HD Denali Duramax 6.6L V8 Turbodiesel 4WD 10-Speed Automatic Leather Seats, Backup/Rearview ...

    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: 1GT49WEY3MF183339
    Stock: LB0008
    Certified Pre-Owned: No
    Listed since: 05-01-2025

    • 99,583 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 6'7” bed, 6.6l, 8cyl
    • The Connection Motors (59 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Hialeah, FL / 59 miles away from West Palm Beach, FL

    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: 1GT42WEY6KF270315
    Stock: 11000
    Certified Pre-Owned: No
    Listed since: 09-21-2024

    • 55,684 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • McPhails Auto Sales (97 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sebring, FL / 97 miles away from West Palm Beach, FL

    Thank you for Shopping at McPhail's Auto Sales! For over 18 Years We have served our community with Respect and Compassion for All Buyers from All wal...

    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: 1GT42XEY3HF136991
    Stock: D7075
    Certified Pre-Owned: No
    Listed since: 03-12-2025

    • 104,675 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Hillsboro Auto Mart (173 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tampa, FL / 173 miles away from West Palm Beach, FL

    *** www.HillsboroAutoMart.com *** ***2017 GMC SIERRA 3500 DENALI*** ***6.6L V8 DI DSL T/C 6.6L*** ***DRW*** ***SUNROOF*** ***REAR ENTERTAINMENT 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: 1GT42YEY6HF106146
    Stock: 106146
    Certified Pre-Owned: No
    Listed since: 01-25-2024

  • 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.
  • New Listing
    $46,999
    fair price
    $122 above market
    • 68,298 miles
    • 1 accident, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Subaru North Orlando (159 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Sanford, FL / 159 miles away from West Palm Beach, FL

    SUNROOF, POWER, REAR AXLE, 3.73 RATIO, PICKUP BOX (STD), PAINT, SOLID, IRIDIUM METALLIC, HILL DESCENT CONTROL, DENALI PREFERRED EQUIPMENT GROUP includ...

    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: 1GT424E8XFF608356
    Stock: FF608356
    Certified Pre-Owned: No
    Listed since: 05-27-2025

    • 73,492 miles
    • No accidents, 1 owner, personal use only
    • Driver's Mart (151 mi away)
    • Sunroof/Moonroof
    • Upgraded Engine
    • Heads up display
    Close

    Located in Winter Park, FL / 151 miles away from West Palm Beach, FL

    This 2021 GMC Sierra 3500HD Denali, has a Pacific Blue Metallic exterior and an Jet Black interior color. 73492 miles. Stock Number MF125706. ...

    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: 1GT49WEY0MF125706
    Stock: MF125706
    Certified Pre-Owned: No
    Listed since: 04-09-2025

  • Price Drop
    • 66,572 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • Driveway (In-stock online)
    • Home delivery*
    Close

    Located in Bend, OR / 2,576 miles away from West Palm Beach, FL

    CarFax No Accidents Reported,CarFax 1-Owner

    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: 1GT42VCY9KF164499
    Stock: KF164499J
    Certified Pre-Owned: No

    • 28,248 miles
    • Issue reported, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Jarrett Ford of Charlotte County (125 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Port Charlotte, FL / 125 miles away from West Palm Beach, FL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    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: 1GT42YEY1HF179831
    Stock: S851A
    Certified Pre-Owned: No
    Listed since: 05-08-2025

  • 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
    • 50,850 miles
    • No accidents, 2 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Toyota of Fort Walton Beach (473 mi away)
    • AWD/4WD
    • Back-up camera
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    Close

    Located in Fort Walton Beach, FL / 473 miles away from West Palm Beach, FL

    Allison 1000 6-Speed Automatic, 4WD, Dark Ash Seats With Jet Black Interior Accents Vinyl. Odometer is 59833 miles below market average!Gooseneck/5th ...

    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: 1GT42TCY0KF210886
    Stock: KF210886
    Certified Pre-Owned: No
    Listed since: 05-16-2025

    • 85,167 miles
    • 2 accidents, 2 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Gerald Jones GMC (484 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Graniteville, SC / 484 miles away from West Palm Beach, FL

    Command the road and everything beyond it with this powerful and luxurious 2019 GMC Sierra 3500HD Denali, finished in a bold Onyx Black and buil...

    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: 1GT42WEYXKF162831
    Stock: 620711A
    Certified Pre-Owned: No
    Listed since: 04-19-2025

  • Price Drop
    • 112,369 miles
    • 1 accident, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Hardee Auto Sales (499 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Conway, SC / 499 miles away from West Palm Beach, FL

    KBB.com Brand Image Awards. This GMC Sierra 3500HD boasts a Turbocharged Diesel V8 6.6L/403 engine powering this Automatic transmission. TRANSMISSION,...

    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: 1GT42YEY3HF193407
    Stock: 241504C
    Certified Pre-Owned: No
    Listed since: 03-18-2025

  • Price Drop
    $68,490
    good price
    $4,266 below market
    • 28,766 miles
    • 2 accidents, 3 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Lexus of Wesley Chapel (174 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Wesley Chapel, FL / 174 miles away from West Palm Beach, FL

    Ebony Twilight Metallic 2022 GMC Sierra 3500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel **PLATINUM DETAIL**, **ACCESS TO OUR CAR WASH...

    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: 1GT49WEYXNF326384
    Stock: T326384
    Certified Pre-Owned: No
    Listed since: 04-30-2025

  • 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.
  • $55,898
    good price
    $4,475 below market
    • 92,043 miles
    • 1 accident, 2 owners, corporate fleet vehicle
    • 8'2” bed, 6.6l, 8cyl
    • Ultimate Motor Cars (236 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Saint Augustine, FL / 236 miles away from West Palm Beach, FL

    ABOUT THIS VEHICLE 2020 GMC Sierra 3500HD Denali 4WD: 6.6L Turbo-Diesel, Allison 10-Speed Automatic Transmission, Jet Black Leather, 10-Way Power Driv...

    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: 1GT49WEYXLF349435
    Stock: P349435
    Certified Pre-Owned: No
    Listed since: 04-19-2025

  • New Listing
    Stock photo**
    $49,968
    good price
    $4,170 below market
    • 97,000 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Woody Folsom Chrysler Dodge Jeep Ram (377 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Baxley, GA / 377 miles away from West Palm Beach, FL

    SHOP FROM HOME PURCHASE YOUR VEHICLE 100% FROM HOME - FREE DELIVERY UP TO 300 MILES - CALL US FOR DETAILSWe can do everything over the phone and deliv...

    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: 1GT49VEY7LF246578
    Stock: JT043058
    Certified Pre-Owned: No
    Listed since: 05-02-2025

  • $44,971
    good price
    $2,866 below market
    • 88,986 miles
    • 1 accident, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Fields BMW of Daytona (183 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Daytona Beach, FL / 183 miles away from West Palm Beach, FL

    Heated/Cooled Leather Seats, Sunroof, NAV, Back-Up Camera, 4x4, Turbo, Alloy Wheels, Bed Liner, Tow Hitch, AUDIO SYSTEM, 8 DIAGONAL COLOR TOUCH SCREEN...

    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: 1GT42YE88GF231809
    Stock: DFU99881B
    Certified Pre-Owned: No
    Listed since: 05-09-2025

  • $55,999
    fair price
    $654 above market
    • 106,506 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Hillsboro Auto Mart (173 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Tampa, FL / 173 miles away from West Palm Beach, FL

    *** www.HillsboroAutoMart.com *** ***2020 GMC SIERRA 3500 DENALI*** ***6.6L V8 DI DSL T/C 6.6L*** ***DRW*** ***NO ACCIDENTS*** ***DENALI ULTIMATE PKG*...

    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: 1GT49WEYXLF261808
    Stock: 261808
    Certified Pre-Owned: No
    Listed since: 03-21-2025

  • 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.
  • $54,780
    fair price
    $162 above market
    • 94,416 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Phillips Buick GMC (187 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Fruitland Park, FL / 187 miles away from West Palm Beach, FL

    This 2020 GMC Sierra 3500HD Denali is a powerful and luxurious vehicle. It has a 6.6 liter Duramax Biodiesel Turbo V8 445hp 910 lb-ft engine, and onyx...

    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: 1GT49WEY4LF202270
    Stock: U197A
    Certified Pre-Owned: No
    Listed since: 05-19-2025

    • 27,439 miles
    • 1 accident, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Vera Buick GMC (49 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Pembroke Pines, FL / 49 miles away from West Palm Beach, FL

    CARFAX One-Owner. Certified. White Frost Tricoat 2022 GMC Sierra 3500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel *ONE OWNER*, *NAVIGA...

    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: 1GT49WEY2NF158532
    Stock: G226577A
    Certified Pre-Owned: Yes
    Listed since: 05-03-2025

  • New Listing
    Stock photo**
    $67,982
    fair price
    $442 above market
    • 42,064 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Starling Buick GMC Stuart (33 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Stuart, FL / 33 miles away from West Palm Beach, FL

    2022 GMC Sierra 3500HD Denali Summit White Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD CARFAX One-Owner. Clean CARFAX. ONE OWNER, Bluetooth, Po...

    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: 1GT49WEY5NF304101
    Stock: 304101T
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • New Listing
    $61,156
    fair price
    $1,073 above market
    • 79,692 miles
    • No accidents, 2 owners, corporate fleet vehicle
    • 6'10” bed, 6.6l, 8cyl
    • Gainesville Buick GMC (245 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Gainesville, FL / 245 miles away from West Palm Beach, FL

    FULLY SERVICED! GREAT VEHICLE HISTORY! ***HOME OF THE LIFETIME WARRANTY***150 Point Inspection*** Recent Arrival!GMC Sierra 3500HD 2020 Onyx Black Dur...

    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: 1GT49WEY7LF173153
    Stock: F173153
    Certified Pre-Owned: No
    Listed since: 05-05-2025

    • 72,844 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • LaBelle Ford (83 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in LaBelle, FL / 83 miles away from West Palm Beach, FL

    WINTER GRILLE COVER, TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, TRAILERING WIRING PROVISIONS for trailering, 5th wheel and gooseneck trailer, includes ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY2LF189857
    Stock: 5189857
    Certified Pre-Owned: No
    Listed since: 04-10-2025

Showing 22 - 42 out of 189 listings

Consumer Reviews for the GMC Sierra 3500HD

Read recent reviews for the GMC Sierra 3500HD
Overall Consumer Rating
3.1 out of 5 stars9 Reviews
Write a vehicle reviewSee all 9 reviews
  • 5 star
    (33%)
  • 4 star
    (22%)
  • 3 star
    (0%)
  • 2 star
    (11%)
  • 1 star
    (33%)
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
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Used 2021 GMC Sierra 3500HD in West Palm Beach, FL Values

Estimated values
2021 GMC Sierra 3500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$41,913$44,826$47,754
Clean$41,146$43,961$46,786
Average$39,867$42,520$45,172
Rough$38,205$40,646$43,074

The average list price of a used 2021 GMC Sierra 3500HD in West Palm Beach, Florida is $55,623. The average mileage on a used GMC Sierra 3500HD 2021 for sale in West Palm Beach, Florida is 73,867. Based on the average mileage of 73,867 for used 2021 GMC Sierra 3500HD for sale in West Palm Beach, FL 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 3500HD 2021 in West Palm Beach, Florida to be $39,867.

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