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  • $39,730
    great price
    $5,949 below market
    • 104,658 miles
    • No accidents, 2 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Ingersoll Auto of Danbury (Danbury, CT)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Danbury, CT / 58 miles away from Verona, NJ

    Clean CARFAX. Sierra 3500HD SLT, Duramax 6.6L V8 Turbodiesel, 4WD, 4' Round Black Tubular Assist Steps (LPO), All-Terrain HD Package, All-Weather Floo...

    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: 1GT42XCY3JF122257
    Stock: T122257
    Certified Pre-Owned: No
    Listed since: 05-24-2025

  • $43,788
    great price
    $6,943 below market
    • 89,423 miles
    • No accidents, 2 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Bedrock Motors Blaine (Blaine, MN)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Blaine, MN / 1,002 miles away from Verona, NJ

    Odometer is 14806 miles below market average! Priced below KBB Fair Purchase Price!Alloy Wheels, Remote Start, Leather Seats, Heated and 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: 1GT42YEY2JF236446
    Stock: C3885
    Certified Pre-Owned: No
    Listed since: 03-03-2025

  • $44,999
    great price
    $6,121 below market
    • 84,000 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 6'7” bed, 6.6l, 8cyl
    • Key GMC of Rochester (Rochester, NH)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Rochester, NH / 239 miles away from Verona, NJ

    Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather.Thank you for shopping with Key GMC of Rochester, part of the Key Auto Group Family of Dealer...

    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: 1GT42YEYXJF276029
    Stock: G21609A
    Certified Pre-Owned: No
    Listed since: 03-01-2025

  • $52,497
    fair price
    $964 above market
    • 23,830 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Stuckey GMC (Altoona, PA)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Altoona, PA / 219 miles away from Verona, NJ

    SLT, 6.6L DURAMAX TURBO DIESEL V8, 4WD, REMOTE START, KEYLESS ENTRY, REAR VIEW CAMERA, FORWARD/REVERSE SENSING SYSTEM, CRUISE CONTROL, NAVIGATION, BLU...

    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: 1GT42XCY5JF203521
    Stock: 25GT248A
    Certified Pre-Owned: No
    Listed since: 04-25-2025

  • 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.
  • $40,995
    good price
    $1,591 below market
    • 106,589 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Laura Buick GMC (Collinsville, IL)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Collinsville, IL / 849 miles away from Verona, NJ

    1-Owner New Vehicle Trade! SLT 6.6 V8 Duramax Turbo Diesel Crew Cab 4x4. Navigation System, Towing Package, Heavy Duty Trailering Package, 3.73 Rear A...

    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: 1GT42XCY6JF231554
    Stock: L253151A
    Certified Pre-Owned: No
    Listed since: 03-14-2025

  • $42,895
    good price
    $2,841 below market
    • 122,754 miles
    • 1 accident, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Bob Allen Nissan (Danville, KY)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Danville, KY / 605 miles away from Verona, NJ

    Priced below KBB Fair Purchase Price! Dark Slate Metallic 2018 GMC Sierra 3500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel...

    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: 1GT42YEY8JF198155
    Stock: M25596A
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • Price Drop
    $53,346
    fair price
    $789 below market
    • 58,224 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Gastonia Chevrolet Buick GMC (Lowell, NC)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lowell, NC / 536 miles away from Verona, NJ

    CARFAX One-Owner. Clean CARFAX.2018 GMC Sierra 3500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel White Frost TricoatAllis...

    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: 1GT42YEY7JF268504
    Stock: T10255A
    Certified Pre-Owned: No
    Listed since: 06-04-2025

  • $49,999
    fair price
    $277 above market
    • 24,069 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6l, 8cyl
    • Key GMC of Rochester (Rochester, NH)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Rochester, NH / 239 miles away from Verona, NJ

    Recent Arrival!6-Speed Automatic with Overdrive, 4WD, Jet Black Leather.Thank you for shopping with Key GMC of Rochester, part of the Key Auto Gro...

    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: 1GT42YEG6JF139483
    Stock: G21645A
    Certified Pre-Owned: No
    Listed since: 05-31-2025

  • 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.
  • $52,410
    fair price
    $53 below market
    • 69,545 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Quebedeaux Buick GMC (Tucson, AZ)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tucson, AZ / 2,104 miles away from Verona, NJ

    Onyx Black 2018 GMC Sierra 3500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD, Jet Black...

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT42YEY4JF268685
    Stock: 35649AA
    Certified Pre-Owned: No
    Listed since: 06-02-2025

  • $45,080
    fair price
    $753 below market
    • 125,612 miles
    • 1 accident, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Lee Auto Group Tampa (Tampa, FL)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tampa, FL / 1,006 miles away from Verona, NJ

    Power, prestige, luxury, and capability describe our 2018 GMC Sierra 3500 Denali Crew Cab 4X4 Dually with the Denali Preferred Equipment Group brought...

    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: 1GT42YEY3JF158694
    Stock: T3092
    Certified Pre-Owned: No
    Listed since: 05-08-2025

  • $49,000
    fair price
    $463 below market
    • 92,660 miles
    • 2 accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Salt Lake Valley Buick GMC (Salt Lake City, UT)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Salt Lake City, UT / 1,956 miles away from Verona, NJ

    2018 Sierra 3500HD DenaliOdometer is 41040 miles below market average!CARFAX One-Owner.The sale price includes a $1,000 finance savings, avail...

    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: 1GT42YEY4JF239753
    Stock: G43782B
    Certified Pre-Owned: No
    Listed since: 05-30-2025

  • $43,581
    good price
    $2,175 below market
    • 119,150 miles
    • 1 accident, 3 owners, personal use
    • 8'2” bed, 6.6l, 8cyl
    • Quebedeaux Buick GMC (Tucson, AZ)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tucson, AZ / 2,104 miles away from Verona, NJ

    Onyx Black 2018 GMC Sierra 3500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD, Jet Black...

    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: Yes

    Features and Specs:

    Listing Information:

    VIN: 1GT42YEY3JF282917
    Stock: Q44286BB
    Certified Pre-Owned: No
    Listed since: 05-17-2025

  • 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
    • 7,808 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6l, 8cyl
    • One Toyota of Oakland (Oakland, CA)
    • Back-up camera
    • Upgraded Headlights
    • Tire Pressure Warnin...
    • USB Inputs
    • Trip Computer
    Close

    Located in Oakland, CA / 2,541 miles away from Verona, NJ

    One Toyota Of Oakland is Northern California's only One Price One person Toyota retailer. - Our family owned and operated Toyota retailer aims to prov...

    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: 1GT31VCG5JZ342914
    Stock: P15963A
    Certified Pre-Owned: No
    Listed since: 05-17-2025

  • $53,933
    fair price
    $799 above market
    • 60,165 miles
    • No accidents, 1 owner, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Kendall at the Idaho Center Auto Mall (Nampa, ID)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Nampa, ID / 2,148 miles away from Verona, NJ

    Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather, 1-Piece Radiator Grille & Fr Bumper Opening Cover, 110-Volt AC Power Outlet, 150 Amps Alternat...

    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: 1GT42YEY3JF235922
    Stock: D452093A
    Certified Pre-Owned: No
    Listed since: 05-28-2025

    • 111,688 miles
    • Odometer issue reported, 3 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Greenline Motors (Bellevue, NE)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bellevue, NE / 1,128 miles away from Verona, NJ

    ** 1GT42YEY0JF275956** 2018 GMC Sierra 3500 HD Crew Cab Denali Pickup 4D 8 ft** 4WD** 111,688 miles*Financing available!GREENLINE MOTORS LLC6...

    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: 1GT42YEY0JF275956
    Stock: 24-483
    Certified Pre-Owned: No
    Listed since: 12-06-2024

  • $54,991
    fair price
    $883 above market
    • 55,811 miles
    • 1 accident, 1 owner, personal use
    • 8'2” bed, 6.6l, 8cyl
    • Trucks Plus (Seattle, WA)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Seattle, WA / 2,385 miles away from Verona, NJ

    GMC Denali 3500HD Dually 4x4 ONE OWNER, clean title, clean Carfax, extremely well maintained, 4x4, leather, heated seats, AC/cooled seats, heated ste...

    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: 1GT42YEY5JF102126
    Stock: 102126
    Certified Pre-Owned: No
    Listed since: 06-06-2025

  • 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.
  • $47,111
    fair price
    $536 above market
    • 104,850 miles
    • 1 accident, 3 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • ClearShift Loveland (Loveland, CO)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Loveland, CO / 1,608 miles away from Verona, NJ

    The 2018 GMC Sierra 3500HD SLT is a heavy-duty truck that combines incredible power with premium comfort, making it perfect for both work and leisure....

    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: 1GT42XCY9JF112798
    Stock: 112798T
    Certified Pre-Owned: No
    Listed since: 02-19-2025

  • New Listing
    • 54,275 miles
    • No accidents, 2 owners, personal use only
    • 6'7” bed, 6.6l, 8cyl
    • Carvana (In-stock online)
    • Delivery available*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Birmingham, AL / 855 miles away from Verona, NJ

    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: 1GT42YEY9JF284803
    Stock: 2003803537
    Certified Pre-Owned: No
    Listed since: 06-12-2025

  • Price Drop
    • 55,828 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • Bob Mills Chevrolet (Darlington, SC)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Power Driver Seat
    • USB Inputs
    Close

    Located in Darlington, SC / 547 miles away from Verona, NJ

    White 2018 GMC Sierra 3500HD SLT 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD, Jet Black Leather...

    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: 1GT42XCY3JF258968
    Stock: CU1767
    Certified Pre-Owned: No
    Listed since: 05-08-2025

    • 75,103 miles
    • No accidents, personal use only
    • Driveway (In-stock online)
    • Delivery available*
    Close

    Located in Kennewick, WA / 2,250 miles away from Verona, NJ

    CarFax No Accidents Reported,CarFax 1-Owner

    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: 1GT42YEY1JF142848
    Stock: JF142848A
    Certified Pre-Owned: No

    • 99,301 miles
    • No accidents, personal use only
    • Bellingham Truck Center (Lynden, WA)
    Close

    Located in Lynden, WA / 2,385 miles away from Verona, NJ

    This GMC Sierra 3500HD SLT, with a Duramax 6.6L Biodiesel Turbo V8 445hp 910ft. lbs. engine, features a Allison 1000 6-Speed Shiftable Automatic trans...

    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: 1GT42XEY1JF199917
    Stock: BTC1221
    Certified Pre-Owned: No
    Listed since: 06-04-2025

Showing 1 - 21 out of 2,987 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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FAQ

What is a good price for a used 2018 GMC Sierra 3500HD?

According to Edmunds.com's True Market Value calculations, the retail price of a used 2018 GMC Sierra 3500HD's most popular trim, the Denali, in great condition with 60,000 miles on its odometer, is $56,933. Prices vary by trim, region and options included.

What is the engine size of the 2018 GMC Sierra 3500HD?

The 2018 GMC Sierra 3500HD comes standard with a 6.0-liter V8 engine (360 horsepower and 380 pound-feet). A turbocharged 6.6-liter diesel V8 (445 hp and 910 lb-ft) is also available.
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