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Kelley Sales Price: $74,750

New 2026 GMC Sierra 3500 Regular Cab Flatbed Truck

Stock #F26521
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Vehicle Notes

2026 GMC Sierra 3500HD Pro 4x4 Duramax Diesel Hillsboro Flatbed Truck for Sale in Bartow, FL

Need a heavy-duty diesel flatbed truck that's ready to w…
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2026 GMC Sierra 3500HD Pro 4x4 Duramax Diesel Hillsboro Flatbed Truck for Sale in Bartow, FL

Need a heavy-duty diesel flatbed truck that's ready to work? This 2026 GMC Sierra 3500HD Pro Regular Cab 4WD with a Hillsboro GII Steel Flatbed is built for contractors, farmers, construction companies, equipment haulers, and commercial fleets that need serious capability and a versatile work platform. Available at Kelley Buick GMC in Bartow, Florida, this new GMC 3500HD combines Duramax diesel power, dual rear wheels, four-wheel drive, and a professional steel flatbed designed for demanding work.

DURAMAX 6.6L TURBO-DIESEL POWER

Under the hood, the 6.6L Duramax Turbo-Diesel V8 delivers an impressive 470 horsepower and 975 lb-ft of torque, paired with a 10-speed automatic transmission. The exhaust brake helps manage vehicle speed when descending with a load, while four-wheel drive and dual rear wheels provide a heavy-duty platform for commercial applications.

HILLSBORO GII STEEL FLATBED — BUILT FOR THE JOBSITE

This Sierra 3500HD features an 11-foot-4-inch Hillsboro GII Steel Flatbed installed by Monroe Truck Equipment. The durable steel construction and practical design make loading, securing, and transporting equipment and materials easier.

Flatbed highlights include:

- 11' 4" Hillsboro GII steel flatbed
- Durable 1/8-inch steel treadplate floor
- 6-inch fold-down sides with multiple tie-down locations
- Inboard stake pockets for additional cargo versatility
- 40-inch louvered headache rack with integrated LED lighting
- Exterior LED stop, turn, tail, and backup lights
- Dual tag lights
- Integrated gooseneck hitch
- Factory backup camera
- Durable painted steel construction with a protective finish

The open flatbed design provides convenient access to cargo from multiple sides and makes this truck an excellent option for hauling building materials, lumber, pallets, machinery, tools, and jobsite equipment.

GOOSENECK TOWING AND WORK-READY FEATURES

This GMC Sierra 3500HD includes a Monroe gooseneck setup, five upfitter switches for compatible auxiliary equipment, a 220-amp alternator, an engine block heater, and a 120-volt, 400-watt instrument panel power outlet. The Snow Plow Prep Package adds supporting equipment for compatible snowplow installations.

Additional features include:

- Four-wheel drive (4WD / 4x4)
- Dual rear wheels (DRW / dually)
- 3.42 rear axle ratio
- All-terrain tires
- Skid plates protecting key underbody components
- Heated, power-adjustable vertical trailering mirrors
- Lane Departure Warning
- Front Collision Warning and Front Collision Mitigation
- GMC Infotainment System with 7-inch touchscreen
- Apple CarPlay and Android Auto compatibility
- Bluetooth connectivity
- Deep-tinted glass and rear-window defogger
- Three-passenger Regular Cab with Jet Black vinyl seating

AN IDEAL FLATBED TRUCK FOR COMMERCIAL AND AGRICULTURAL WORK

If you're shopping for a GMC Sierra 3500 diesel flatbed, a heavy-duty 4x4 dually, a gooseneck work truck, or a commercial flatbed truck in Florida, this truck deserves a closer look.

Potential applications include construction, roofing, landscaping, farming, ranching, fencing, equipment transportation, building supply delivery, and general contracting. The open steel bed can also accommodate additional compatible accessories and cargo-management equipment to suit your operation.

SHOP NEW GMC WORK TRUCKS AT KELLEY BUICK GMC

Kelley Buick GMC is located at 255 W. Van Fleet Drive in Bartow, Florida, serving commercial truck buyers throughout Lakeland, Winter Haven, Polk County
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Chassis Details

Stock Number
F26521
Stock Type
New
Year
2026
Make
GMC
Model
Sierra 3500
Class
3
GVWR
14,000
Drivetrain
4WD
Cab-to-Axle
84
Wheelbase
170.8
Cab Type
Regular
Vehicle Trim
Pro
Vehicle VIN
1GD3USEY5TF125309
Interior Color
Jet Black
Seating Capacity
3
Exterior Color Description
Summit White
Engine Cylinder Count
8
Engine
6.6L
Transmission Type
Automatic
Rear Wheels
Dual
Fuel Type
Diesel
Engine Model
L5P
Engine Size (L)
6.6

Vehicle Options

  • JET BLACK VINYL SEAT TRIM
  • REAR AXLE 3.42 RATIO
  • GLASS DEEP-TINTED
  • PRO PREFERRED EQUIPMENT GROUP includes standard equipment
  • SUMMIT WHITE
  • DEFOGGER REAR-WINDOW ELECTRIC
  • TIRES LT235/80R17E ALL-TERRAIN BLACKWALL (STD)
  • ENGINE BLOCK HEATER
  • UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.
  • MIRROR INSIDE REARVIEW AUTO-DIMMING
  • SEATS FRONT 40/20/40 SPLIT-BENCH with covered armrest storage and under-seat storage (lockable) (STD)
  • SIRIUSXM TRIAL SUBSCRIPTION
  • LICENSE PLATE KIT FRONT
  • WINTER GRILLE COVER
  • TRANSMISSION 10-SPEED AUTOMATIC
  • CONVENIENCE PACKAGE includes (AKO) tinted glass and (C49) rear-window defogger
  • REAR CAMERA KIT Kit includes camera fixed position bracket & 19 ft cable with attachment clips. Rear camera radio calibration provided from the factory. See Upfitter Integration Bulletin for installation instructions at www.gmupfitter.com
  • SKID PLATES protect the oil pan front axle and transfer case
  • WHEELS 17 (43.2 CM) PAINTED STEEL (STD)
  • SHIP THRU PRODUCED IN FLINT ASSEMBLY AND SHIPPED TO MONROE TRUCK EQUIPMENT IN FLINT. RETURNED TO FLINT ASSEMBLY FOR SHIPPING TO FINAL DESTINATION.
  • FUEL TANK REAR ONLY 40 GALLON mounted between frame side rails and behind rear axle Required for DEF tank relocation to inside the frame rails - includes DEF tank relocation mounting kit.)
  • SPARE TIRE DELETE (STD)
  • ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-Diesel compatible (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.
  • ALTERNATOR 220 AMPS
  • AUDIO SYSTEM GMC INFOTAINMENT SYSTEM WITH 7 DIAGONAL COLOR TOUCH-SCREEN AM/FM STEREO with seek-and-scan and digital clock includes Bluetooth streaming audio for music and select phones; featuring wired Android Auto and Apple CarPlay capability for compatible phones (STD)
  • MIRRORS OUTSIDE POWER-ADJUSTABLE VERTICAL TRAILERING with heated and auto-dimming upper glass lower convex mirrors turn signal indicators puddle lamps (U12) perimeter lighting auxiliary lighting power folding/manual extending (extends 3.31 [84.25mm]) Black Includes (DD8) auto-dimming rearview mirror.)
  • POWER OUTLET INSTRUMENT PANEL 120-VOLT (400 WATTS)
  • SNOW PLOW PREP PACKAGE includes (KW5) 220-amp alternator includes increased front GAWR on Heavy Duty models (NZZ) skid plates (transfer case and oil pan) pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance and includes (KW5) 220-amp alternator
  • EXHAUST BRAKE
  • Lane Departure Warning
  • Front Collision Mitigation
  • Front Collision Warning
  • Automatic Highbeams
  • Keyless Start
  • Locking/Limited Slip Differential
  • Four Wheel Drive
  • Tow Hooks
  • Power Steering
  • ABS
  • 4-Wheel Disc Brakes
  • Steel Wheels
  • Tires - Front All-Terrain
  • Tires - Rear All-Terrain
  • Daytime Running Lights
  • Integrated Turn Signal Mirrors
  • Automatic Highbeams
  • Heated Mirrors
  • Power Mirror(s)
  • Integrated Turn Signal Mirrors
  • AM/FM Stereo
  • MP3 Capability
  • Bluetooth Connection
  • Auxiliary Audio Input
  • Smart Device Integration
  • Bluetooth Connection
  • Bluetooth Connection
  • Smart Device Integration
  • WiFi Hotspot
  • Split Bench Seat
  • Vinyl Seats
  • Floor Mats
  • Adjustable Steering Wheel
  • Power Windows
  • Power Windows
  • Power Door Locks
  • Keyless Entry
  • Power Door Locks
  • Cruise Control
  • Power Outlet
  • A/C
  • Front Collision Mitigation
  • Front Collision Mitigation
  • Front Collision Warning
  • Traction Control
  • Stability Control
  • Daytime Running Lights
  • Driver Air Bag
  • Passenger Air Bag
  • Front Side Air Bag
  • Front Head Air Bag
  • Rear Head Air Bag
  • Passenger Air Bag Sensor
  • Tire Pressure Monitor
  • Driver Restriction Features
  • Telematics
  • Requires Subscription
  • Front Collision Warning
  • Lane Departure Warning
  • Telematics
  • Navigation from Telematics
  • Requires Subscription
  • View All
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Body Details

Manufacturer
Body Type
Flatbed Truck
Body Model
11'4" GII Steel
Body Material
Steel
Body Length
11' 4"
Floor Description
Treadplate
Floor Material
Steel
Floor Thickness
1/8"
Headache Rack Description
Louvered with LED Lights
Headache Rack Height
40"
Lighting Type
LED
Lighting Description
Lights (6) S/T/T and (4) B/U | Dual Tag Lights
Lighting Location
Exterior
Side Description
6" Fold Down Sides with Multiple Tie Locations
Stake Pockets Description
Inboard Stake Pockets
Hitch Type
Gooseneck
Hitch Size
2..5"
Hitch Capacity
30K
Hitch Type
Gooseneck
Hitch Size
2..5"
Hitch Capacity
25K
Camera Description
Factory Backup Camera

GII Steel Features

Meet the second generation in Hillsboro Industries’ steel truck beds. This model features sides with greasable hinges, slam latches and rubber bump stops for more convenient loading and towing. Plus, this bed uses PPG epoxy primer and polyurethane paint so your truck continues to shine for years to come. You can drive a Hillsboro steel bed with confidence, knowing that it’s backed by an industry-leading two-year warranty.

Body Installed by
Monroe Truck Equipment
2726 Solution Center
Chicago, IL 60677
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Pricing Details

List Price $64,183
Body Costs + $11,600
Dealer Fee + $699
Title Fee + $100
Registration Fee + $100
26 Upfit Cash - $750
Dealer Discount - $1,182
Kelley Sales Price $74,750
Total Savings $1,932
Additional Upfit Cost
Price may or may not include price of upfit. Some prices already include rebates. Must have or qualify for a Fleet Account Number (FAN) to ensure best pricing.

Vehicle available NOW in Bartow, FL.

Contact Kelley Buick GMC, Inc for more info.

Disclaimer:
Tax, title, license fees (unless itemized above) are extra. Dealer fee of $699 and electronic filing fee of $99 are extra. Not available with special finance or lease offers. *All new vehicle pricing includes having a trade in and financing with the dealership.