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  • $58,995
    great price
    $6,299 below market
    • 61,900 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • O'Meara GMC (20 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Denver, CO / 20 miles away from Longmont, CO

    Experience the O’Meara Advantage. O’Meara offers a wide range of vehicles at competitive prices, and our knowledgeable staff is dedicated to helping c...

    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: 1GT49WEY1NF289029
    Stock: 7010GA
    Certified Pre-Owned: No
    Listed since: 04-08-2025

  • $54,483
    great price
    $4,980 below market
    • 72,251 miles
    • 1 accident, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • AutoNation Ford Littleton (42 mi away)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Littleton, CO / 42 miles away from Longmont, CO

    Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleDenali Ultimate PackageTechnology PackageAssist Steps; Power-RetractableSunroof; Power...

    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: 1GT49WEY4MF131475
    Stock: MF131475
    Certified Pre-Owned: No
    Listed since: 03-06-2025

  • Price Drop
    $84,788
    good price
    $3,505 below market
    • 23,447 miles
    • No accidents, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • O'Meara GMC (20 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Denver, CO / 20 miles away from Longmont, CO

    Experience the O’Meara Advantage. O’Meara offers a wide range of vehicles at competitive prices, and our knowledgeable staff is dedicated to helping c...

    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: 1GT49YEY8RF160982
    Stock: 6957GS
    Certified Pre-Owned: No
    Listed since: 03-25-2025

  • New Listing
    $60,998
    fair price
    $1,334 below market
    • 52,158 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax Parker (47 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Parker, CO / 47 miles away from Longmont, CO

    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: 1GT49VEY0MF254068
    Stock: 26699943
    Certified Pre-Owned: No

  • Advertisement

    Special offers available

    2025 GMC Sierra 2500HD
    $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.
    • $47,030
      good price
      $2,235 below market
      • 88,051 miles
      • No accidents, 1 owner, personal use
      • 8'2” bed, 6.6l, 8cyl
      • Transwest GMC (24 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Upgraded Headlights
      • Tire Pressure Warnin...
      Close

      Located in Henderson, CO / 24 miles away from Longmont, CO

      Clean Carfax, **ONE OWNER**, Non-Smoker, Local Trade, 18" Machined Aluminum Wheels, 220 Amp Alternator, 2-Speed Electronic Shift Transfer Case, 4" Rou...

      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: 1GT49TEY3PF166754
      Stock: CU16096
      Certified Pre-Owned: No
      Listed since: 12-05-2024

    • $73,991
      good price
      $2,298 below market
      • 34,512 miles
      • No accidents, 1 owner, personal use only
      • 6'10” bed, 6.6l, 8cyl
      • ClearShift (42 mi away)
      • AWD/4WD
      • Bluetooth
      • Navigation
      • Leather Seats
      • Keyless Entry/Start
      Close

      Located in Highlands Ranch, CO / 42 miles away from Longmont, CO

      The 2024 GMC Sierra 3500HD Denali is a premium heavy-duty truck engineered to deliver unmatched power and luxury. Under the hood, you'll find a robust...

      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: 1GT49WEY8RF104514
      Stock: KM104514
      Certified Pre-Owned: No
      Listed since: 03-27-2025

    • Price Drop
      $49,749
      good price
      $3,590 below market
      • 116,703 miles
      • 1 accident, 1 owner, personal use only
      • 8'2” bed, 6.6l, 8cyl
      • Transwest GMC (24 mi away)
      • AWD/4WD
      • Back-up camera
      • Bluetooth
      • Leather Seats
      • Sunroof/Moonroof
      Close

      Located in Henderson, CO / 24 miles away from Longmont, CO

      **ONE OWNER**, Truck has been smoked in. Local Trade, 4X4 / Four Wheel Drive, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat ...

      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: 1GT49WEY2LF244940
      Stock: U16267
      Certified Pre-Owned: No
      Listed since: 02-27-2025

    • $63,999
      fair price
      $178 below market
      • 47,521 miles
      • No accidents, 2 owners, personal use only
      • 8'2” bed, 6.6l, 8cyl
      • Reds Auto and Truck (7 mi away)
      • AWD/4WD
      • Bluetooth
      • Leather Seats
      • Sunroof/Moonroof
      • Keyless Entry/Start
      Close

      Located in Longmont, CO / 7 miles away from Longmont, CO

      Red's is pleased to present this 2021 GMC Sierra 3500HD Denali! This Sierra just hit our lot on trade and is seriously ready to pull! With a 6.6L Dura...

      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: 1GT49WEY3MF185950
      Stock: 2025-123
      Certified Pre-Owned: No
      Listed since: 03-18-2025

    • Advertisement

      Special offers available

      2025 GMC Sierra 2500HD
      $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
        $59,499
        good price
        $3,470 below market
        • 58,531 miles
        • 8'2” bed, 6.6l, 8cyl
        • AutoNation USA Denver 104 (21 mi away)
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Leather Seats
        • Keyless Entry/Start
        Close

        Located in Northglenn, CO / 21 miles away from Longmont, CO

        Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleLeather SeatsOnyx BlackNavigation SystemKeyless StartJet Black; Perforated Leather-App...

        AutoCheck Vehicle History Summary Unavailable.

        Features and Specs:

        Listing Information:

        VIN: 1GT49UEYXPF257249
        Stock: PF257249
        Certified Pre-Owned: No
        Listed since: 04-17-2025

      • $34,807
        fair price
        $158 below market
        • 211,166 miles
        • No accidents, 1 owner, personal use only
        • 6'7” bed, 6.6l, 8cyl
        • Skyline Mitsubishi (20 mi away)
        • Home delivery*
        • AWD/4WD
        • Back-up camera
        • Bluetooth
        • Navigation
        • Leather Seats
        Close

        Located in Thornton, CO / 20 miles away from Longmont, CO

        Summit White SLT 4WD ***At Skyline Mitsubishi we have financing for everyone. Call 303-465-5512.*****, "Dealer Handling charge is included in the aski...

        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: 1GT42VEY8KF228111
        Stock: 20354
        Certified Pre-Owned: No
        Listed since: 11-12-2024

      • Price Drop
        $75,389
        fair price
        $341 above market
        • 23,194 miles
        • No accidents, 1 owner, personal use
        • 6'10” bed, 6.6l, 8cyl
        • Johnson Auto Plaza (23 mi away)
        • AWD/4WD
        • Bluetooth
        • Navigation
        • Leather Seats
        • Keyless Entry/Start
        Close

        Located in Brighton, CO / 23 miles away from Longmont, CO

        **Accident-Free Carfax** **GM Certified Pre-Owned** **Sierra 3500HD Denali Crew Cab 4WD** *6.6L Duramax Turbo Diesel* *Technology Package* *Power Sunr...

        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: 1GT49WEY0RF144490
        Stock: G518416A
        Certified Pre-Owned: No
        Listed since: 02-19-2025

      • Price Drop
        • 23,713 miles
        • No accidents, 1 owner, personal use only
        • Johnson Auto Plaza (23 mi away)
        • 4WD
        • Full Grain Leather S...
        • Heated Driver & Fron...
        • Power Sunroof
        • Apple CarPlay
        Close

        Located in Brighton, CO / 23 miles away from Longmont, CO

        2024 GMC Sierra 3500HD Denali Ultimate Sterling Metallic 4WD Duramax 6.6L V8 Turbodiesel 10-Speed Automatic10-Speed Automatic, 4WD, Alpine Umber Le...

        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: 1GT49YEY7RF339174
        Stock: G504098A
        Certified Pre-Owned: No
        Listed since: 03-04-2025

      • Advertisement

        Special offers available

        2025 GMC Sierra 2500HD
        $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.
        • $52,771
          fair price
          $387 below market
          • 90,454 miles
          • No accidents, 1 owner, corporate fleet vehicle
          • 6'10” bed, 6.6l, 8cyl
          • ClearShift (42 mi away)
          • AWD/4WD
          • Bluetooth
          • Leather Seats
          • Sunroof/Moonroof
          • Keyless Entry/Start
          Close

          Located in Highlands Ranch, CO / 42 miles away from Longmont, CO

          2021 GMC Sierra 3500HD Denali Summit White 4WD Duramax 6.6L V8 Turbodiesel 10-Speed AutomaticCall us today to speak with one of our friendly Purcha...

          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: 1GT49WEY9MF280822
          Stock: JV280822
          Certified Pre-Owned: No
          Listed since: 08-15-2024

        • Price Drop
          $61,890
          good price
          $2,220 below market
          • 40,611 miles
          • 1 accident, 4 owners, personal use only
          • 6'10” bed, 6.6l, 8cyl
          • O'Meara Ford (21 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Leather Seats
          • Sunroof/Moonroof
          Close

          Located in Northglenn, CO / 21 miles away from Longmont, CO

          Recent Arrival! Clean CARFAX. White Frost Tricoat 2020 GMC Sierra 3500HD Denali 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Local Trade, Non-Sm...

          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: 1GT49WEY0LF298060
          Stock: MP5904A
          Certified Pre-Owned: No
          Listed since: 04-04-2025

        • $45,441
          fair price
          $1,519 below market
          • 102,443 miles
          • 1 accident, 1 owner, personal use
          • 8'2” bed, 6.6l, 8cyl
          • Transwest GMC (24 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Upgraded Headlights
          • Tire Pressure Warnin...
          Close

          Located in Henderson, CO / 24 miles away from Longmont, CO

          **ONE OWNER**, Non-Smoker, Local Trade, 4X4 / Four Wheel Drive, 18" Machined Aluminum Wheels, 220 Amp Alternator, 2-Speed Electronic Shift Transfer Ca...

          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: 1GT49TEYXPF166878
          Stock: CU16117
          Certified Pre-Owned: No
          Listed since: 11-22-2024

        • $59,995
          fair price
          $1,139 below market
          • 49,193 miles
          • 1 accident, 3 owners, personal use only
          • 6'10” bed, 6.6l, 8cyl
          • ClearShift (42 mi away)
          • AWD/4WD
          • Back-up camera
          • Bluetooth
          • Leather Seats
          • Sunroof/Moonroof
          Close

          Located in Highlands Ranch, CO / 42 miles away from Longmont, CO

          2020 GMC Sierra 3500HD Denali Summit White 4WD Duramax 6.6L V8 Turbodiesel 10-Speed AutomaticCall us today to speak with one of our friendly Purcha...

          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: 1GT49WEY7LF294801
          Stock: JV294801
          Certified Pre-Owned: No
          Listed since: 01-29-2025

        • Advertisement

          Special offers available

          2025 GMC Sierra 2500HD
          $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.
          • Price Drop
            $53,927
            fair price
            $3,767 above market
            • 59,167 miles
            • No accidents, 1 owner, personal use only
            • 8'2” bed, 6.6l, 8cyl
            • AutoNation Ford Arapahoe (42 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Centennial, CO / 42 miles away from Longmont, CO

            Leather SeatsNavigation SystemCooled Front Seat(S)Chrome WheelsEngine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel CompatibleAutoNation Ford Arapa...

            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: 1GT42YEYXJF119424
            Stock: JF119424
            Certified Pre-Owned: No
            Listed since: 03-31-2025

          • $47,995
            fair price
            $322 below market
            • 104,850 miles
            • 1 accident, 3 owners, personal use only
            • 6'7” bed, 6.6l, 8cyl
            • ClearShift (42 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Highlands Ranch, CO / 42 miles away from Longmont, CO

            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

            • 7,460 miles
            • No accidents, 1 owner, personal use only
            • ClearShift Loveland (19 mi away)
            • 4WD
            • Forge Perforated Lea...
            • Heated Driver & Fron...
            • Apple CarPlay
            • Blind-spot monitorin...
            Close

            Located in Loveland, CO / 19 miles away from Longmont, CO

            The 2024 GMC Sierra 3500 Denali is the ultimate blend of power, luxury, and advanced technology. Featuring a Duramax 6.6L Turbo-Diesel V8 engine paire...

            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: 1GT49WEY8RF418485
            Stock: KM418485
            Certified Pre-Owned: No
            Listed since: 04-02-2025

            • 51,982 miles
            • 1 accident, 2 owners, personal use only
            • 8'2” bed, 6.6l, 8cyl
            • Reds Auto and Truck (7 mi away)
            • AWD/4WD
            • Back-up camera
            • Bluetooth
            • Navigation
            • Leather Seats
            Close

            Located in Longmont, CO / 7 miles away from Longmont, CO

            #DURAMAX #DENALI Red's Auto And Truck is pleased to present this 2011 GMC 3500 Denali Dually with the Duramax Diesel engine and only 52,000 miles! Thi...

            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: 1GT426C82BF164544
            Stock: 2025-097
            Certified Pre-Owned: No
            Listed since: 03-11-2025

            • 15,940 miles
            • No accidents, 1 owner, personal use only
            • ClearShift (42 mi away)
            • 4WD
            • Apple CarPlay
            • Remote keyless entry
            • Remote Start Package
            • Integrated Trailer B...
            Close

            Located in Highlands Ranch, CO / 42 miles away from Longmont, CO

            2022 GMC Sierra 3500HD SLE Summit White 4WD 6.6L V8 6-Speed AutomaticClean CARFAX. CARFAX One-Owner.Call us today to speak with one of our friend...

            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: 1GT39TE73NF202717
            Stock: KM202717
            Certified Pre-Owned: No
            Listed since: 09-05-2024

          Showing 1 - 21 out of 88 listings
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