Meet the 2026 GMC Sierra 3500HD Pro, a heavy-duty truck engineered for serious work and demanding conditions. This white powerhouse arrives ready to t… Read More…
Meet the 2026 GMC Sierra 3500HD Pro, a heavy-duty truck engineered for serious work and demanding conditions. This white powerhouse arrives ready to tackle any job with proven capability and reliability backed by GMC's commitment to quality.This Sierra 3500HD Pro comes equipped with essential features designed for productivity and control:- Duramax 6.6L V8 Turbodiesel engine producing 470 hp and 975 lb-ft of torque- 10-Speed Automatic transmission with 4WD- 2-Speed Active Electronic AutoTrac Transfer Case for terrain management- Dual rear wheels for enhanced load-carrying capacity- Bed View Camera for precise backing and positioning- GMC Infotainment System with Apple CarPlay and Android Auto connectivity- Lane Departure Warning System and Forward Collision Alert- Auto High-Beam Headlights with IntelliBeam technology- 10-Way Power Driver Seat with lumbar support- Engine Block Heater for cold-weather reliability- Exhaust Brake for enhanced braking control- Power-Adjustable Mirrors and fully automatic headlights- OnStar Services capability for emergency communication- SiriusXM Trial SubscriptionUnder the hood, the Duramax diesel engine delivers the torque needed for heavy hauling and trailer work. The 10-speed automatic transmission manages power delivery smoothly across varying loads, while the 4WD system with electronic transfer case gives you control in diverse driving conditions. The dual rear wheels provide the foundation for serious payload capacity.Inside the cab, you'll find practical comfort features that support long workdays. The power driver's seat adjusts in ten directions with lumbar support, while the split-bench front seating accommodates your crew. Climate control, premium audio, and modern connectivity features keep you comfortable and connected during every shift.Safety systems work continuously to protect you and your cargo. Dual front airbags, stability control, traction management, and the bed view camera combine with advanced warning systems to help you operate with confidence on job sites and highways.This Sierra 3500HD Pro represents solid, hardworking capability. Everything about this truck is built to perform consistently and reliably. Visit our showroom to see this work-ready machine in person. Price includes Price includes Dealer discount and GM rebates that all customers qualify for:$1000 - Buick & GMC Consumer Cash Program. Exp. 08/31/2026 Read Less
Chassis Details
Stock Number
407790G
Stock Type
New
Year
2026
Make
GMC
Model
Sierra 3500
Class
3
GVWR
14,000
Drivetrain
4WD
Cab-to-Axle
60
Wheelbase
176.8
Cab Type
Crew
Vehicle Trim
Pro
Interior Color
Jet Black, Cloth seat trim
Seating Capacity
6
Exterior Color Description
Summit White
Engine Cylinder Count
8
Engine
6.6L Duramax Turbo-Diesel V8 engine
Transmission Type
Automatic
Rear Wheels
Dual
Fuel Type
Diesel
Engine Model
L5P
Engine Size (L)
6.6
Horsepower
470
Vehicle Options
Brake lining wear indicator
Wireless phone projection for Apple CarPlay and Android Auto
Bumper, front chrome lower
Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
Back-up alarm calibration This calibration will allow installation of an aftermarket back-up alarm by disabling rear perimeter lighting
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
Driver Information Center, 3.5" diagonal monochromatic display
Moldings, beltline, Black
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Fuel tank, front and rear, 63.5 gallon (240 liters)
Windows, power rear, express down (Not available on Regular Cab models.)
Window, power front, passenger express down
Air filter, heavy-duty
Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
Lamps, cargo area, cab mounted integrated with center high mount stop lamp with switch in bank on left side of steering wheel
Wheels, 17" (43.2 cm) painted steel (STD)
Wheel trim, painted center caps
Cooling, external engine oil cooler
Cruise control, steering wheel-mounted
Daytime Running Lamps, LED signature lighting
Vinyl seat trim
USB ports, 2, Charge/Data ports located on instrument panel
Frame, fully-boxed, hydroformed front section and an open "C" rear section
Capped Fuel Fill
Door handles, Black grained
Power outlet, front auxiliary, 12-volt
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)
Door locks, power
Rear Seat Reminder (Requires Crew Cab model.)
Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable) (STD)
Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety.)
Seat adjuster, passenger 4-way manual
Remote Keyless Entry
Air conditioning, single-zone
Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
Audio system feature, 6-speaker system (Requires Crew Cab model.)
Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
Body, Chassis Cab
Push Button Start
Auto-locking rear differential
Windows, power front, drivers express up/down
Compass, located in instrument cluster
GVWR, 14,000 lbs. (6350 kg)
Suspension Package
Bumper, rear, delete
Steering wheel, urethane
Steering, Recirculating Ball with smart flow power steering system
Headlamps, Animated LED projectors, LED turn signals and Daytime Running Lamps
Tires, LT235/80R17E all-terrain, blackwall (STD)
Seat, rear 60/40 folding bench (folds up), 3-passenger, (includes child seat top tether anchor) (Not available with Regular Cab model.)
Bluetooth for phone, connectivity to vehicle infotainment system
Recovery hooks, front, frame-mounted, Black
Air vents, rear (Not available with Regular Cab model.)
Instrument cluster 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
Floor covering, rubberized-vinyl (Not available with LPO floor liners.)
Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
Universal Vehicle Module Includes module, customer interface harness and instructions. Provides vehicle data over an open CAN network (J1939). 10 switchable inputs/outputs and Custom Configuration Tool to integrate upfit equipment controls. Software features that support Auto Vehicle Start, Shutdown Inhibit, Fast Idle and Snow Plow
Grille (Chrome with flat black grille insert bars.)
Lamps, Smoked Amber roof marker, (LED)
Low Speed Forward Automatic Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
Exterior Temperature Display, located in radio display
OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (Requires (UE1) OnStar. OnStar Basics includes remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
Four wheel drive
Steering column, Tilt-Wheel, manual with wheel locking security feature
Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)
Trailer brake controller, integrated
Sierra HD Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UFL) Lane Departure Warning, (T8Z) Buckle to Drive and (UHY) Automatic Emergency Braking
USB ports, (2) charge-only, rear
Tire, spare LT235/80R17E all-terrain
LPO, Black tubular assist steps, 4" round
Engine block heater
Pro Preferred Equipment Group
SiriusXM Trial Subscription
Convenience Package
Seat adjuster, driver 10-way power including lumbar
Exhaust brake
Power outlet, instrument panel, 120-volt (400 watts)
High idle switch
Rear Camera Kit
Engine, Duramax 6.6L Turbo-Diesel V8
Winter Grille Cover
Bed View Camera
Transfer case, two-speed active, electronic Autotrac with push button control
Mirror, inside rearview auto dimming with partial video display