2026 GMC Sierra 3500 HD Pro

  • New
$59,185MSRP
$58,583Final Price
$2,000 More For Your Trade
MARK SWEENEY BUICK GMC INC
Location Details
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    The overview

    Exterior Color
    Summit White
    Interior Color
    Jet Black, Cloth seat trim
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    6.6L V8 Gas engine
    VIN
    1GT4USE78TF374445
    Stock Number
    TF374445
    • AutoCheck
    • Basic: 3 Years/36,000 Miles
    • Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
    • Drivetrain: 5 Years/60,000 Miles, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
    • Maintenance: First Visit: 12 Months/12,000 Miles
    • Roadside Assistance: 5 Years/60,000 Miles, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
    • Warranty: <<< Preliminary 2026 Warranty >>>
    • Max seating capacity: 6
    • Fuel System: Direct Injection
    • Fuel tank capacity: 36 gal
    • Horsepower: 401
    • Towing capacity: 16000 lbs
    • 6-speaker audio system:
      • Speakers are positioned throughout the cabin for outstanding sound quality and an enjoyable listening experience
    • Bluetooth®:
      • Pair your compatible mobile phone to your vehicle's infotainment system1
      • Place and receive hands-free phone calls
      • Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command system
      • With streaming audio capability, you can listen to files stored on your phone or Bluetooth digital media device
    • GMC Infotainment System with color touchscreen:
      • 7" diagonal color touchscreen for customizing and managing entertainment and vehicle feature settings1 on Pro 1SA
      • 8" diagonal color touchscreen for customizing and managing entertainment and vehicle feature settings1 on SLE and Elevation
      • Bluetooth®2 audio streaming for select devices
      • Apple CarPlay™ capability for compatible phones3
      • Android Auto™ capability for compatible phones4
    • Wi-Fi® Hotspot capable:
      • Terms and limitations apply. See onstar.com or dealer for details.
      • May require additional optional equipment
    • Wireless phone projection:
      • For Apple CarPlay™1 and Android Auto™2
    • 18" LT275/70R18 all-terrain, blackwall spare tire:
      • May require additional optional equipment
    • 18" LT275/70R18E all-terrain, blackwall tires
    • 18" steel painted Silver wheels
    • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
    • Black beltline moldings
    • Black door handles
    • Black outside power-adjustable vertical trailering mirrors:
      • Lower convex mirrors
      • Heated upper glass
      • Integrated turn signal indicators
      • Manual folding/extending
      • Extends 3.31-inches
      • May require additional optional equipment
    • Cargo bed LED lighting:
      • Provides light to find cargo in the bed
      • May require additional optional equipment
    • Cargo tie-downs:
      • 12-fixed rated at 500 lbs. per corner
    • Chrome front bumper:
      • May require additional optional equipment
    • Chrome rear bumper:
      • With integrated CornerSteps
      • May require additional optional equipment
    • CornerStep rear bumper:
      • Helps make it easier to get into and out of the pickup bed
      • Located at each end of the rear bumper
      • Textured step pads to help provide secure footing
    • Deep-tinted glass:
      • Provides added protection from sun and glare
    • IntelliBeam:
      • At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1
    • LED signature taillamp, with LED stop and reverse light
    • Locking tailgate
    • Side Bed Step:
      • Black textured step pads help provide secure footing
      • Integrated on forward portion of outer bed on driver and passenger side to provide ease of access to forward portion of the bed
    • Smoked Amber LED roof marker lamps:
      • Roof-mounted lamps near the front of the cab
    • Solar-absorbing glass:
      • Helps minimize the amount of solar rays entering the vehicle cabin
    • Spare tire carrier lock:
      • Helps keep spare tire secure
    • Standard tailgate
    • Tailgate and bed rail protection caps
    • Tailgate with EZ Lift assist, power lock & release:
      • Hitch area lighting
      • May require additional optional equipment
    • 12-volt auxiliary front power outlet:
      • May require additional optional equipment
    • 120-volt box-mounted power outlet:
      • 3-prong auxiliary household-style outlet
      • Located in the pickup bed
      • May require additional optional equipment
    • 120-volt power outlet:
      • 3-prong auxiliary household-style outlet
      • Located on the instrument panel
      • Makes it convenient for powering laptops, phone chargers and other electronic devices
      • May require additional optional equipment
    • 3.5" diagonal monochromatic Driver Information Center
    • 4-way manual driver seat
    • 4-way manual front passenger seat
    • 40/20/40 split-bench front seat with under-seat storage:
      • Seating for up to 3
      • Driver and front passenger seatbacks recline
      • Head restraints at the outboard seating positions
      • Center seatback that doubles as a fold-down armrest with storage
    • 60/40 split-folding rear bench seat:
      • Includes child seat top tether anchor
      • Can fold one or both sides up
    • Assist handles:
      • Front A-pillar mounted for Driver and Passenger
      • Rear B-pillar mounted
    • Compass:
      • Located in instrument cluster
    • Cruise control:
      • Maintains a selected speed while driving
      • Automatically disengages when the vehicle's traction control system needs to limit wheelspin on slippery surfaces or when the StabiliTrak® stability control system detects an oncoming skid
      • Set and resume speed functions
      • Steering-wheel mounted controls to easily maintain and manage cruising speed
    • Inside rearview manual day/night mirror:
      • Adjust the tilt of the mirror to help reduce glare during nighttime driving
    • Instrumentation:
      • 6-gauge cluster
      • Speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
    • Manual tilt steering column:
      • Allows the steering wheel to be manually adjusted up or down
      • Provides extra comfort when entering or exiting the vehicle
      • Locking security feature
    • Outside temperature display:
      • Located in infotainment display
    • Power door locks:
      • Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob (when equipped)
    • Power windows with driver express-up/down:
      • Quickly raises the window or lowers it with the touch of a button
      • If an obstruction is detected, the anti-pinch feature will auto-reverse
    • Power windows with front passenger express-down:
      • Quickly lowers the window with the touch of a button
      • If an obstruction is detected, the anti-pinch feature will auto-reverse
    • Power windows with rear express-down
    • Rear air vents:
      • Provides cabin comfort for rear occupants
    • Rear window defogger:
      • Utilizes a warming grid to help remove fog or frost from the rear window
    • Remote Keyless Entry:
      • Allows you to lock and unlock doors of the vehicle with the key fob
      • Driver's door or all doors unlock at the touch of a button
      • Includes panic alarm button
      • Includes remote locking tailgate
      • May require additional optional equipment
    • Rubberized vinyl floor covering:
      • Provides good traction and convenient cleanup
    • Single-zone manual climate control:
      • Maintains a selected temperature
    • Steering wheel
    • USB ports:
      • (2) Data/charge ports located on instrument panel1
    • 10-speed automatic transmission:
      • Tow/Haul mode reduces shift cycling for better control and improved cooling when towing or hauling heavy loads
      • Electronically controlled with overdrive
      • Auto Grade Braking that automatically downshifts when needed to enable engine braking, helping to slow the vehicle on downhill grades and reduce brake wear (operates in Tow/Haul mode)
    • 11,700 lbs. GVWR
    • 220-amp alternator:
      • May require additional optional equipment
    • 3.73 rear axle ratio:
      • Requires a gas engine
    • 4-wheel antilock disc brakes:
      • Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
      • DuraLife™ brake rotors feature a hardened surface to reduce corrosion and provide quieter braking with less vibration. DuraLife™ rotors are hardened and strengthened during the manufacturing process
      • Brake system features a corrosion-fighting process called Ferritic Nitro-Carburizing (FNC) which can double rotor life expectancy and reduce or minimize rust over non-FNC coated rotors
    • 6.6L V8 Gas engine:
      • 401 hp [299 kW] @ 5200 rpm
      • 464 lb-ft of torque [629 N-m] @ 4000 rpm
      • 3.73 rear axle ratio
      • Paired with an Allison® 10-speed automatic transmission
      • Capless fuel fill
    • Air filtration monitoring:
      • Alerts the driver when the engine air filter needs replacement
    • Automatic locking rear differential:
      • When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction
      • The Eaton® Locker senses a difference in wheel speed of approximately 100 rpm
    • Black vertical recovery hooks:
      • Two front frame-mounted1
    • Brake pad wear indicator
    • Capless fuel fill:
      • Prevents paint scratches that can result from a tethered fuel cap
      • Creates a tight seal around the fuel-pump nozzle when the nozzle is fully inserted
      • Requires gasoline engine
    • Electronic shift 2-speed transfer case with push button controls:
      • System shift smoothly between drive settings to handle a variety of road conditions
      • 2WD High for most on-road and highway situations
      • 4WD High for snowy or wet roads when added traction is needed
      • 4WD Low for deep sand, mud or snow to provide maximum torque to all 4 wheels
      • May require additional optional equipment
    • External auxiliary transmission oil cooler:
      • Heavy-duty air-to-oil cooler
      • Helps provides optimal transmission performance even when operating under a heavy load or towing a trailer
      • May require additional optional equipment
    • External engine oil cooler:
      • Heavy-duty air-to-oil cooler
      • Helps extend engine oil life under heavy loads
    • Fully boxed frame:
      • Hydroformed front section
      • High-strength steel
    • Heavy-Duty Air Filter:
      • Thick construction helps to trap more dirt before it can enter the air intake
    • Heavy-duty 720 cold-cranking amps battery:
      • 80 Amp-hr
      • Maintenance-free with rundown protection and retained accessory power
      • May require additional optional equipment
    • Integrated trailer brake controller:
      • Integrated with the antilock brake system (ABS)
      • Helps provide measured brake force signaling to electric-controlled trailer brake systems
      • Trailer gain and output are displayed in the Driver Information Center
    • Pickup bed:
      • Roll-formed high-strength steel
      • Includes bed assist step
    • Push Button Start
    • Skid plates:
      • Help protect the front underbody, oil pan and transfer case
      • May require additional optional equipment
    • Steering:
      • Recirculating Ball with smart flow power steering system
    • Suspension Package:
      • Designed to help maintain handling and ride quality while towing a trailer or carrying a load
    • PRO Convenience Package:
      • Rear-window defogger
      • EZ Lift power lock and release tailgate
      • Tinted glass
      • LED cargo bed lighting
      • Outside power-adjustable vertical trailering with heated upper glass mirrors (Crew Cab and Double Cab models)
    • Sierra HD Pro Safety:
      • Forward Collision Alert1
      • Following Distance Indicator1
      • Front Pedestrian Braking1
      • IntelliBeam
      • Lane Departure Warning1
      • Buckle to Drive
      • Automatic Emergency Braking1
    • Snow Plow Prep / Camper Package:
      • Power feed to accommodate a backup and roof emergency light1
      • A single 220-amp alternator
      • Heavy-duty front springs
      • Under body skid plates to help protect the transfer case from debris
      • May require additional optional equipment
    • Trailering Package:
      • Trailer hitch1
      • Trailering hitch platform
      • Includes a 2.5" receiver hitch (with 2" insert), 4-pin and 7-pin connectors
      • 7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle
      • Hitch Guidance2
      • May require additional optional equipment
    • Trailering Information Label:
      • Provides max trailer ratings for tongue weight, conventional, gooseneck hitch and 5th wheel hitch
    • LED Daytime Running Lamps
    • Signature LED Daytime Running Lamps
    • 6 airbags:
      • Dual-stage frontal airbags for driver and front outboard passenger1
      • Seat-mounted side-impact airbags for driver and front outboard passenger1
      • Head-curtain airbags for outboard seating positions1
      • Includes front outboard Passenger Sensing System for frontal outboard passenger airbag and illuminates a status light that indicates whether the airbag is on or off1
    • Buckle to Drive:
      • Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled
      • The feature also reminds the front passenger to buckle up, if equipped
    • Following Distance Indicator:
      • Displays the following time in seconds between your vehicle and a detected vehicle in front of you1
      • Designed to help you maintain a safe following distance
    • Forward Collision Alert:
      • Warns you if it detects a potential collision with a detected vehicle you're following so you can take action1
      • Can also provide a tailgating alert if you're following a vehicle much too closely
    • Front Pedestrian Braking:
      • At speeds between 5 and 50 mph, can help you avoid or reduce the severity of a collision with a pedestrian it detects directly in front of you1
      • Provides pedestrian alerts and can automatically provide hard emergency braking or enhance driver's hard braking
      • Limited nighttime and low visibility performance
    • HD Rear Vision Camera:
      • Shows high-resolution digital image of area directly behind your vehicle while in Reverse1
      • Can help you park or avoid vehicles and objects
      • You can also display an overlay of where your vehicle is heading
      • Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly
      • May require additional optional equipment
    • Hitch Guidance:
      • When in Reverse, displays a centered guideline on the Rear Vision Camera view1
      • Can help you line up the hitch to your trailer
      • When driving, lets you check the trailer using Rear Vision Camera view
    • Lane Departure Warning:
      • Alerts you when it detects that you are unintentionally drifting out of detected lane lines1
      • System alerts do not occur if you're using your turn signal, or it detects you may be intentionally leaving your lane
    • OnStar Basics:
      • Drive confidently with core OnStar services including1
        • Remote commands
        • Built-in voice assistance
        • Real-time traffic and navigation
        • Automatic Crash Response to help if you're in need
    • OnStar® services capable:
      • See onstar.com for details and limitations. Services vary by model. Service plan required.
    • Rear Seat Belt Indicator
    • Rear Seat Reminder:
      • Helps to remind the driver to check the back seat(s) before leaving the vehicle1
      • Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
      • Under certain conditions, once the vehicle is switched off, designed to sound audible chimes and display a visual message within the driver display
      • Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
    • Seat Belt Adjustable Guide Loops:
      • Front row only
    • Teen Driver:
      • Helps encourage safe driving habits for teens by providing an in-vehicle report card1
      • Activates certain safety systems, if equipped, when a Teen Driver-designated key fob is used
      • Mutes the radio until the front-seat occupants fasten their seat belts
    • Tire Pressure Monitoring System with Tire Fill Alert:
      • Monitors tire pressure and alerts of an under-inflated condition in one or more of the tires1
      • Provides visual and audible alerts outside the vehicle when inflating an under inflated tire to the recommended tire pressure
    • Automatic Emergency Braking:
      • Can help you avoid or reduce the severity of a collision with a detected vehicle you're following using camera technology1
      • Can automatically provide hard emergency braking or enhance your hard braking
      • Works at speeds between 5 and 50 mph
    • StabiliTrak, electronic stability control system with traction control:
      • Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path
      • Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling
      • Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads
      • Includes Brake Assist which detects rapid brake pedal applications due to emergency braking situations and provides additional braking via the Antilock Brake System (ABS) module
      • Includes Trailer Sway Control
      • Hill Start Assist

    Notes from the dealer

    Meet the 2026 GMC Sierra 3500HD Pro, a commanding heavy-duty pickup engineered for serious work and reliable performance. Powered by a 6.6L V8 engine paired with a 10-speed automatic transmission and 4WD, this truck delivers the capability you need on any job site or challenging terrain. With its white exterior and professional-grade construction, the Sierra 3500HD Pro stands ready to handle demanding tasks with confidence and durability.

    Key Features:
    - 6.6L V8 Engine with 10-Speed Automatic & 4WD
    - GMC Infotainment System with AM/FM Radio
    - Automatic Emergency Braking & Forward Collision Alert
    - Lane Departure Warning System
    - Remote Keyless Entry with Push Button Start
    - EZ Lift Power Lock and Release Tailgate
    - Exterior Parking Camera Rear
    - IntelliBeam Automatic High Beam Headlights
    - Front 40/20/40 Split-Bench Seats with Storage
    - Electronic Stability Control & Traction Control

    This Pro model combines rugged capability with thoughtful safety technology to keep you secure on the road. The truck features comprehensive braking systems including 4-wheel disc brakes with ABS, dual front impact and side impact airbags, and electronic stability control for confident handling. Climate control, power steering, and power windows round out the driver-focused comfort features.

    Don't miss the opportunity to own this capable Sierra 3500HD Pro. Visit us today to experience the power, reliability, and professional-grade features that make GMC's heavy-duty line the choice of serious truck enthusiasts and work professionals.

    Peace of mind

    A name you can trust

    MARK SWEENEY BUICK GMC INC is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
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    KBB.com Consumer Reviews

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        Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

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