CHICOPEE White 2025 GMC Sierra 3500HD: New Truck for Sale -G253091

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    May not represent actual vehicle (options, colors, trim and body style may vary).

    Cash $104,085
    
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    Specifications

Pricing Information

    MSRP

    $104,085

Current Offers

    MSRP

    $104,085

    Finance Offers
    3.9% APR for 48 Months for Well-Qualified Buyers When Financed w/ GM Financial1
            25-40G-3: For Well-Qualified Buyers When Financed w/ GM Financial
        
Click here for more offer information
        13.9% APR for 48 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $22.53 for every $1000 you finance. Average example down payment is 10.0%. Not available with leases and some other offers. Must take new retail delivery by 04/30/2025.
    
Specifications
Stock Number
G253091
Exterior
White Frost Tricoat
Interior
Alpine Umber Full Grain Leather Seating Surfaces
Drive Wheels
4WD
Engine

    6.6L Duramax Turbo-Diesel V8 engine
VIN

1GT4UYEY6SF223565
Mileage
1

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Vehicle At A Glance

Fuel Economy ^* N/A city / N/A hwy
Mileage 1 MILES
Transmission 10-Speed A/T
Exterior Color White Frost Tricoat
Interior Color Alpine Umber Full Grain Leather Seating Surfaces
Engine Data 6.6L Duramax Turbo-Diesel V8 engine

Vehicle Description

Bob Pion Buick GMC is proud to present you with another True Market Priced Vehicle. This 2025 GMC Sierra 3500HD Denali Ultimate is loaded with the following Factory Options: Gooseneck/5th Wheel Prep Package, Preferred Equipment Group 5SB (120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2 USB Ports, 2-Speed Active Transfer Case, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium Series 12-Speaker System, Deep-Tinted Glass, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Rain-Sensing Wipers, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Keyless Open & Start, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Power Front Windows w/Passenger Express Up/Down, Power Sliding Rear Window w/Defogger, Power Sunroof, ProGrade Trailering System, Push Button Start, Rear Cross Traffic Alert, Remote Vehicle Starter System, Safety Alert Seat, Signature Denali Ultimate Grille in Vader Chrome, SiriusXM w/360L Trial Subscription, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Trailer Tire Pressure Monitor Sensors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wireless Charging, and Wireless Phone Projection), Snow Plow Prep/Camper Package (220 Amp Alternator), Technology Package (Auto-Dimming Inside Rearview Mirror w/Camera and Multicolor 15 Diagonal Head-Up Display), Sierra 3500HD Denali Ultimate, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, White Frost Tricoat, and Alpine Umber Leather Gooseneck/5th Wheel Prep Package, Preferred Equipment Group 5SB (120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2 USB Ports, 2-Speed Active Transfer Case, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium Series 12-Speaker System, Deep-Tinted Glass, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Rain-Sensing Wipers, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Keyless Open & Start, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Power Front Windows w/Passenger Express Up/Down, Power Sliding Rear Window w/Defogger, Power Sunroof, ProGrade Trailering System, Push Button Start, Rear Cross Traffic Alert, Remote Vehicle Starter System, Safety Alert Seat, Signature Denali Ultimate Grille in Vader Chrome, SiriusXM w/360L Trial Subscription, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Trailer Tire Pressure Monitor Sensors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wireless Charging, and Wireless Phone Projection), Snow Plow Prep/Camper Package (220 Amp Alternator), Technology Package (Auto-Dimming Inside Rearview Mirror w/Camera and Multicolor 15 Diagonal Head-Up Display), Sierra 3500HD Denali Ultimate, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, White Frost Tricoat, Alpine Umber Leather, 12 Speakers, 16-Way Power Driver Seat Adjuster w/Lumbar, 16-Way Power Passenger Seat Adjuster w/Lumbar, 3.42 Rear Axle Ratio, 4-Wheel Disc Brakes, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automat.

Specifications

Exterior

    Deep-tinted glass, Provides added protection from sun and glare
  
    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
  
    Power sunroof, Opens over the first row at the push of a button Retracts into the roof Offers tilt and slide features with express-open and -close May require additional optional equipment
  
    Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass, Chrome mirror caps AT4 features high gloss Black mirror caps Power folding/extending Lower convex mirrors Heated upper glass Integrated turn signal indicators Puddle lamps Perimeter lighting Auxiliary lighting Extends 3.31-inches
  
    Rainsense automatic wipers, When turned on, will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshield
  
    Power sliding rear window with rear defogger, Utilizes a warming grid to remove fog or frost from the rear window The window switch is conveniently located in the overhead console for easy 1-touch operation May require additional optional equipment
  
    Cargo bed LED lighting, Provides light to find cargo in the bed May require additional optional equipment
  
    Smoked Amber LED roof marker lamps, Roof-mounted lamps near the front of the cab
  
    Winter Grille Cover, May require additional optional equipment
  
    Spare tire carrier lock, Helps keep spare tire secure
  
    MultiPro™ Audio System by Kicker, A weatherproof audio package that fits the MultiPro™ exclusively. Bluetooth® sound streams from connected devices to the 2-channel, 100 watt, 50 watts RMS per-channel Tailgate Sound System. The illuminated display puts the user in charge of the programming track, volume and source System operation that is completely independent of the interior audiosystem Bluetooth®1 compatibility for wireless playback 3.5mm and USB inputs for audio playbacks A custom ABS baffle with full gasket sealing A weatherproof amplifier hidden in the tailgate
  
    Body-color front bumper
  
    Stainless-steel beltline moldings
  
    IntelliBeam, At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions
  
    Cargo tie-downs, 12-fixed rated at 500 lbs. per corner
  
    Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
  
    Chrome mirror caps
  
    Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  
    Tailgate with EZ Lift assist, power lock & release, Hitch area lighting May require additional optional equipment
  
    Spray-on bedliner, Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shifting Covers the entire bed surface below side rails, front box top rail, gauge hole plugs and tie-downs Chemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight seal Does not include spray-on liner on tailgate due to Black composite inner panel Includes GMC logo on all trims except PRO
  
    Tailgate and bed rail protection caps
  
    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
  
    LED fog lamps
  
    Body-color rear bumper, With integrated CornerSteps
  
    Chrome door handles
  
    GMC MultiPro Tailgate, Six function tailgate designed to help improve loading, unloading and accessing the cargo box Hitch area lighting Power lock and release May require additional optional equipment
  
    18" Polished forged aluminum wheels
  
    Dual Rear wheelhouse liners
  
    18" LT235/80R18 blackwall all-terrain spare tire
  
    Front license plate bracket, Front bracket is included if displaying a front license plate is required in your state
  
    18" LT235/80R18 all-terrain, blackwall tires
  
Interior

    Heated steering wheel, With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day May require additional optional equipment
  
    Carpeted floor covering, Color-keyed to match the interior
  
    13.4" diagonal GMC Premium Infotainment System with Google built-in, 13.4" diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM¹ radio capable Bluetooth®2 streaming audio for music and select phones Wireless Apple CarPlay™ capability for compatible phones³ Wireless Android Auto™ capability for compatible phones⁴ Customize and manage entertainment and vehicle feature setting Use, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone
  
    Rear air vents, Provides cabin comfort for rear occupants
  
    Adaptive Cruise Control, Automatically follows a detected vehicle ahead at a driver-selected following gap¹ If no vehicle is detected in your path, works like regular cruise control You can always override the feature and take control Adaptive Cruise Control is compatible with Trailering. It is important to ensure your trailer has functioning brakes while trailering with heavier loads. Read your Owner's Manual to review Trailer Brake requirements and to learn more about the limitations of this system.
  
    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
  
    Remote Start, Start your vehicle remotely and step into a comfortably warmed or cooled vehicle, depending on the weather and your preset preferences Locks doors and turns on parking lamps while the engine is running Activates the climate control system
  
    Leather-wrapped steering wheel, Includes controls for audio, phone, Driver Information Center and cruise control
  
    Ventilated driver and front passenger seats, Separate buttons on the climate control panel allow you to choose from 3 levels of fan circulation Individually controlled Cooling feature includes both seatbacks and cushions May require additional optional equipment
  
    Rear Camera Mirror, Uses a camera to provide you with the option of using a wide and less obstructed view behind your vehicle while driving instead of a traditional rearview mirror¹ The feature also allows brightness, vertical tilt and zoom adjustments May require additional optional equipment
  
    Power windows with driver and front passenger express-up/down, Quickly raises the window or lowers it with the touch of a button If obstruction is detected, the anti-pinch feature will auto-reverse
  
    Head-Up Display, Multi-color 15" diagonal Head-Up Display Projects vehicle information onto the windshield low in the driver's line of sight to help you keep your eyes on the road Can select key vehicle information to display including an off-road inclinometer Adjustable vertical position and brightness of the display May require additional optional equipment
  
    In-Vehicle Trailering App, Checklist¹ Trailer maintenance reminders Trailer security alerts Trailer mileage Tow/haul reminder Trailer electrical diagnostics Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed
  
    Front bucket seats, May require additional optional equipment
  
    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
  
    Theft-deterrent unauthorized entry system, Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter Helps deter unauthorized entry, helping to protect your vehicle May require additional optional equipment
  
    Outside temperature display, Located in infotainment display
  
    USB ports, (2) Data/charge ports located inside center console¹
  
    Keyless Open and Start, With the key fob in your possession, lock and unlock your car's doors by pressing the button on a front exterior door handle, increasing convenience Lockout protection helps you avoid locking keys in the vehicle
  
    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)
  
    16-way power passenger seat with power lumbar and massage
  
    12.3" diagonal color Driver Information Center, Includes driver personalization, warning messages and vehicle information Replaces traditional analog gauges with fully reconfigurable high definition cluster layout High definition display provides crisp, premium appearance
  
    USB ports, (2) Charge ports located on rear of console¹
  
    Steering-wheel mounted controls, Allow the driver to easily operate the audio system and phone interface controls May require additional optional equipment
  
    16-way power driver seat with power lumbar and massage
  
    Dual-zone automatic climate control, Automatically maintains the selected temperatures for both the driver and front passenger Allows individual climate settings for both driver and front passenger Driver and front passenger can choose a temperature up to 30 degrees difference May require additional optional equipment
  
    Wireless Charging, Uses induction technology for select portable electronic devices¹ Convenient charging location on the top of the center console Customers can charge their smartphones while they drive without connecting to any cables May require additional optional equipment
  
    Driver memory, Press memory button 1 or 2 to program and recall preferences May require additional optional equipment
  
    Compass, Located in instrument cluster
  
    Rear carpeted floor mats, Helps protect your interior from road debris and the elements Color-keyed to match the interior Denali models feature unique premium tufted carpeting
  
    USB ports, (2) First row, located on console¹
  
    Universal Home Remote, 3-channel programmable Conveniently activates compatible devices such as garage door openers, security systems, and home automation devices from inside your vehicle May require additional optional equipment
  
    Up-level rear seat with storage package, 60/40 Full-length folding bench seat Seatback storage on left and right side Center fold out armrest with 2 cupholders Underseat storage (full cab width)
  
    Power windows with rear express-down
  
    120-volt box-mounted power outlet, 3-prong auxiliary household-style outlet Located in the pickup bed May require additional optional equipment
  
    Manual tilt and telescoping steering column, Allows the driver to adjust the steering wheel up or down, and the steering column forward or back May require additional optional equipment
  
    Rear window defogger, Utilizes a warming grid to help remove fog or frost from the rear window
  
    Front carpeted floor mats, Helps protect your interior from road debris and the elements Color-keyed to match the interior Denali models feature unique premium tufted carpeting
  
    Front center console, Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity May require additional optional equipment
  
    Assist handles, Front A-pillar mounted for Driver and Passenger Rear B-pillar mounted
  
    Heated rear outboard seats, At the touch of a button you can warm the cushions Provide comfort in cold weather for passengers in the rear outboard seating positions Passengers can manage heat settings with their own controls May require additional optional equipment
  
    Heated driver and front outboard passenger seats, Separate buttons on the climate control panel allow you to choose from 3 levels of warmth At the touch of a button you can warm the cushions and seatbacks with multilevel temperature control Individually controlled Seats can be programmed to automatically warm up when it's cold out May require additional optional equipment
  
Entertainment

    Wi-Fi® hotspot capable, Terms and limitations apply. See onstar.com or dealer for details. May require additional optional equipment
  
    13.4" diagonal GMC Premium Infotainment System with Google built-in, 13.4" diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM¹ radio capable Bluetooth®2 streaming audio for music and select phones Wireless Apple CarPlay™ capability for compatible phones³ Wireless Android Auto™ capability for compatible phones⁴ Customize and manage entertainment and vehicle feature setting Use, control and manage select smartphone apps through the Infotainment system Voice-activated technology for phone
  
    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
  
    Wireless phone projection, For Apple CarPlay™¹ and Android Auto™²
  
    SiriusXM with 360L Trial Subscription, With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes¹ SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and more Experience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever before
  
    Bose Premium Series with 12-speaker system with CenterPoint, 12-speakers with Richbass® woofer Bose is renowned for expert sound engineering and high-quality audio and with premium speakers positioned throughout the cabin
  
Mechanical

    Digital Variable Steering Assist, This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue
  
    Chrome vertical recovery hooks, Two front frame-mounted1
  
    Pickup bed, Roll-formed high-strength steel Includes bed assist step
  
    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
  
    Engine block heater, Helps ease cold weather starts Heats the engine and engine block fluids
  
    Heavy-Duty Air Filter, Thick construction helps to trap more dirt before it can enter the air intake
  
    Allison® 10-speed automatic transmission, Electronically controlled with overdrive for smooth-shifting performance Tow/Haul mode that reduces shift cycling for better control and improved cooling when towing or hauling heavy loads 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) May require additional optional equipment
  
    External engine oil cooler, Heavy-duty air-to-oil cooler Helps extend engine oil life under heavy loads
  
    Capped fuel fill, Requires diesel engine or pickup bed delete
  
    Brake pad wear indicator
  
    Fully boxed frame, Hydroformed front section High-strength steel
  
    6.6L Duramax Turbo-Diesel V8 engine, 470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm 3.42 rear axle ratio Exhaust brake Engine block heater Capped fuel fill Paired with an Allison® 10-speed automatic transmission Diesel Exhaust Fluid (DEF) fill located in fuel door Engine after run feature for cooling performance May require additional optional equipment
  
    Push Button Start
  
    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
  
    3.42 rear axle ratio, Requires a diesel engine
  
    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
  
    Air filtration monitoring, Alerts the driver when the engine air filter needs replacement
  
    Diesel exhaust brake, Reduces the amount of conventional braking needed while towing a heavy trailer or driving downhill Uses the variable vanes in the turbocharger to smoothly and quietly create additional back pressure in the engine to help slow the vehicle Works with the transmission's Tow/Haul mode and Auto Grade Braking to help the driver maintain the desired speed even on long, steep downgrades Switch activated May require additional optional equipment
  
    Skid plates, Help protect the front underbody, oil pan and transfer case May require additional optional equipment
  
    Autotrac® 2-speed transfer case with push button controls, 4-button control 2WD, Auto, 4WD, 4WD LO 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 When in AUTO mode, remains in 2WD mode until the system detects wheel slippage Automatically engages 4WD until traction is regained May require additional optional equipment
  
    Heavy-duty 730 cold-cranking amps battery, 70 Amp-hr Maintenance-free with rundown protection and retained accessory power
  
    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
  
    Suspension Package, Designed to help maintain handling and ride quality while towing a trailer or carrying a load
  
    Gooseneck / 5th Wheel Prep Package, Hitch platform to accept Gooseneck or 5th wheel hitch Hitch platform with tray to accept ball and stamped box holes with caps installed Box mounted 7-pin trailer harness May require additional optional equipment
  
    14,000 lbs. GVWR, When properly equipped; includes weight of vehicle, passengers, cargo and equipment
  
Safety

    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
  
    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
  
    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
  
    LED Daytime Running Lamps
  
    Trailer Tire Pressure and Temperature Sensors, Set of 4 sensors Sensors will be shipped loose with the truck and will need to be installed on trailer by customer Additional or replacement sensors are available as GM Accessory System is capable of monitoring up to 6 wheels May require additional optional equipment
  
    3 Years of OnStar® Premium Plan, Access the entire suite of OnStar Safety & Security Services and Connected Services¹. This includes the OnStar Guardian app, connectivity for available In-Vehicle Apps, In-Vehicle Wi-Fi Hotspot data and Remote Access through the myGMC mobile app
  
    Seat Belt Adjustable Guide Loops, Front row only
  
    Bed View Camera, Camera in the Center High Mount Stop Lamp (CHMSL) provides an elevated view of the truck bed from the back of the cab¹ Allows driver to see inside the cargo bed on the infotainment display to help with 5th wheel or gooseneck hitching and to check cargo Includes 2 Trailer Camera Provisions May require additional optional equipment
  
    Signature LED Daytime Running Lamps
  
    HD Surround Vision, Provides selectable digital camera views of the area around your vehicle¹ Can help you park or avoid vehicles and objects¹ You can also display a guideline to show where your vehicle is heading¹ Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly Requires Auxiliary Trailer Camera if one of the following camera views is desired: Transparent Trailer, Rear Trailer View, Picture-in-Picture or Inside Trailer View May require additional optional equipment
  
    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
  
    Rear Cross Traffic Alert, When in Reverse, warns you of detected vehicles crossing behind you¹ May require additional optional equipment
  
    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
  
    Rear Seat Belt Indicator
  
    Trailer Side Blind Zone Alert, Provides visual side-mirror alerts when a moving vehicle is detected in a side blind zone that is extended to trailer lengths¹ May require additional optional equipment
  
    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
  
    Hitch View, Shows a close-up view of the trailer hitch¹ In Reverse, the view can be used to line up your hitch to your trailer When driving, the view can be used to check your trailer hitch Shifting to Park automatically engages the Electric Parking Brake (if equipped) May require additional optional equipment
  
    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
  
    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
  
    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
  
    Trailering camera provisions, Includes connector for accessory wiring harness
  
    Front and Rear Park Assist, Provides alerts of nearby detected vehicles and objects in front of or behind your vehicle¹ These can help you park and avoid collisions 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
  
    OnStar® services capable, See onstar.com for details and limitations. Services vary by model. Service plan required.
  
    Safety Alert Seat, Uses left-, right- or both-side driver seat vibration pulses to help you detect and identify the direction of potential crashes¹ You can also switch to beeping crash avoidance alerts May require additional optional equipment
  
    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
  
    OnStar Basics, Drive confidently with core OnStar services including¹ Remote commands Built-in voice assistance Real-time traffic and navigation Automatic Crash Response
  
Package

    ProGrade Trailering System, Hitch Guidance with Hitch View In-vehicle Trailering App
  
    Technology Package, Rear Camera Mirror¹ Multi-color 15" Diagonal Head-Up Display¹ AT4 Preferred Package on AT4 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
  
    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
  
Warranty

    Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
  
    Roadside Assistance: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
  
    Drivetrain: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
  
    Warranty: <<< Preliminary 2025 Warranty >>>
  
    Basic: 3 Years/36,000 Miles
  
    Maintenance: First Visit: 12 Months/12,000 Miles
  
Options

    Wheels, 18" (45.7 cm) Polished forged aluminum
  
    Emissions, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington state requirements
  
    Rear axle, 3.42 ratio
  
    Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible
  
    Gooseneck / 5th Wheel Prep Package
  
    Snow Plow Prep/Camper Package
  
    GVWR, 14,000 lbs. (6350 kg) with dual rear wheels
  
    Transmission, Allison 10-speed automatic
  
    White Frost Tricoat

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* This estimate is based on average loan terms over 5 years. For accurate estimate please contact our finance department

Accessories

Shop our entire portfolio of GMC Accessories and make your vehicle one of a kind.

Whether you’re looking for Premium All-Weather Floor Liners and Floor Mats to help protect your interior, 22” Wheels and Black GMC Emblems for personal style or a set of Cross Rails to expand your cargo options, we’ve got you covered.

Choose from the only accessories Designed, Engineered, Tested and Backed by GMC as well as Associated Accessories from our partners at Thule, Kicker and others to personalize and enhance your vehicle.

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All Vehicles Prices do not include additional fees and costs of closing, including government fees and taxes, any finance charges, any dealer documentation fees, any emissions testing fees or other fees. All prices, specifications and availability subject to change without notice. Prices include all Rebates/Incentives and not all customers will qualify. **All Pre-Owned Vehicle Pricing Includes a $2000 Minimum Trade Allowance! Tax, Title & Fees are not included in the vehicle prices shown and must be paid by purchaser. We go into great detail to make sure that our website is accurate, with this being said errors/mistakes do occur. You can call us directly at 413-598-8377 to confirm the price or simply stop on down and see us at the dealership** All Vehicles MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the Fuel Economy portion of the EPAs website for details, including a MPG recalculation tool). The features and options listed are for the new 2025 GMC Sierra 3500HD and may not apply to this specific vehicle.

New 2025 GMC Sierra 3500HD Crew Cab Long Box 4-Wheel Drive Denali Ultimate

VIN 1GT4UYEY6SF223565 Stock Number G253091

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New 2025 GMC Sierra 2500 HD Crew Cab Long Box 4-Wheel Drive Denali Ultimate 1GT4UXEY9SF214157 GMC

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New 2025 GMC Sierra 3500HD Crew Cab Long Box 4-Wheel Drive Denali Ultimate VIN 1GT4UYEY6SF223565 Stock Number G253091

Gallery

Dealership Photos

Manufacturer Photos

Pricing Information

Current Offers

Finance Offers

Specifications

CHECK AVAILABILITY

Vehicle At A Glance

Vehicle Description

Specifications

Exterior

Interior

Entertainment

Mechanical

Safety

Package

Warranty

Options

Purchase Inquiry

Accessories

Similar Vehicles

New 2025 GMC Sierra 2500 HD Crew Cab Long Box 4-Wheel Drive Denali Ultimate 1GT4UXEY9SF214157 GMC

New 2025 GMC Sierra 3500HD Crew Cab Long Box 4-Wheel Drive Denali Ultimate

VIN 1GT4UYEY6SF223565 Stock Number G253091