Key Features

An icon representing Body Type
Body Type Pickup
An icon representing Mileage
Mileage 1 mi
An icon representing Fuel Type
Fuel Type
An icon representing Engine Description
Engine Description
An icon representing Drivetrain
Drivetrain RWD
An icon representing Cab Type
Cab Type
An icon representing Trim
Trim Pro

Vehicle Details

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Overview

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Stock Number

26078

Stock Type

New

Year

2026

Make
GMC
Model
Sierra 2500
Model Code

TC20903

Cab Type

Regular

Vehicle Trim

Pro

Body Type
Pickup
VIN

1GT3HLE78TF103648

Brake Type

Hydraulic

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Dimensions

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Dimensions

Class

3

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Drivetrain

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Drivetrain

RWD

Transmission

Transmission Type

Automatic

manufacturing

Engine

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Engine Description

6.6L V8 Gas engine

Engine Cylinder Count

8

Engine Model

L8T

Engine Size (L)

6.6

Horsepower

401

Fuel Type

Gasoline

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Seating

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Seat Dimensions

Seating Capacity

3

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Colors

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Exterior Color

White

Interior Color

Jet Black, Vinyl seat trim

verified

Vehicle Options

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  • 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.)
  • Tailgate, standard (Deleted with (ZW9) pickup bed delete.)
  • Audio system feature, 2-speakers (Requires Regular Cab model.)
  • Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Seat trim, Vinyl
  • 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.)
  • Tailgate, locking, utilizes same key as ignition and door (Included and only available with (QK1) standard tailgate. Deleted with (ZW9) pickup bed delete.)
  • Pickup bed includes bed assist step (Deleted when (ZW9) pickup bed delete is ordered.) (STD)
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Bed Step, Black integrated on forward portion of bed on driver and passenger side (Not available on (ZW9) pickup bed delete.)
  • Driver Information Center, 3.5" diagonal monochromatic display
  • Transmission, 10-Speed automatic (STD)
  • Moldings, beltline, Black
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • LED Signature DRL's
  • Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
  • Bumper, rear chrome with bumper CornerSteps
  • Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
  • 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
  • Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering (Not available on (ZW9) pickup bed delete.)
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Cooling, external engine oil cooler
  • Cruise control, steering wheel-mounted
  • OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select 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 select 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.)
  • Daytime Running Lamps, LED signature lighting
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door (Deleted with (ZW9) pickup bed delete.)
  • Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
  • Door handles, Black grained
  • Brake lining wear indicator
  • Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
  • Power outlet, front auxiliary, 12-volt
  • Door locks, power
  • Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable) (STD)
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • 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
  • Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching (Deleted with (ZW9) pickup bed delete.)
  • Push Button Start
  • Auto-locking rear differential
  • Windows, power front, drivers express up/down
  • Rear wheel drive
  • Bluetooth for phone connectivity to vehicle infotainment system
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Compass, located in instrument cluster
  • Suspension Package
  • Steering wheel, urethane
  • USB Ports, 2, Charge/Data ports located on instrument panel
  • HD Rear Vision Camera (Not available with (ZW9) pickup bed delete. Removed with (UV2) HD Surround Vision.)
  • Steering, Recirculating Ball with smart flow power steering system
  • Cooling, auxiliary external transmission oil cooler
  • Air filtration monitoring
  • Recovery hooks, front, frame-mounted, Black
  • 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.)
  • Grille (Chrome with flat black grille insert bars.)
  • CornerStep, rear bumper
  • Exterior Temperature Display, located in radio display
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance (Deleted when (ZW9) pickup bed delete is ordered.)
  • Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm) (STD)
  • OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Taillamps, LED Signature Tail, Incandescent Brake, Turn & Reverse Lamps
  • Steering column, Tilt-Wheel, manual with wheel locking security feature
  • Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)
  • Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine. Not included with (ZW9) pickup bed delete.)
  • 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 wireless Apple CarPlay and Android Auto capable (STD)
  • 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
  • Seat adjuster, driver 4-way manual
  • Pro Preferred Equipment Group
  • Convenience Package
  • Wheels, 18" (45.7 cm) 8-spoke painted steel, Silver Extended
  • Power outlet, bed mounted, 120-volt
  • Tailgate, gate function manual with EZ Lift
  • Tires, LT275/70R18E all-terrain, blackwall
  • Tire, spare LT275/70R18 all-terrain, blackwall
  • LED Cargo Area Lighting
  • Power outlet, instrument panel, 120-volt
  • GVWR, 10,350 lbs. (4695 kg)
  • Mirror, inside rearview auto-dimming
  • LPO, Cargo tie-down rings, set of 4
  • Mirrors, outside power-adjustable vertical trailering
  • Summit White
  • Bedliner, Spray-on, Pickup bedliner
  • Emissions, Federal requirements
  • Jet Black, Vinyl seat trim
  • Lamps, Smoked Amber roof marker, (LED)
  • Defogger, rear-window electric
  • Gooseneck / 5th Wheel Prep Package -- Hitch platform to accept Gooseneck or 5th Wheel hitch.
  • Glass, deep-tinted

Sheehan Buick GMC, Inc. ci2 Test Site

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Listing Notes
Experience the power and reliability of the new 2026 GMC Sierra 2500HD Pro in classic white. With only 1 mile on the odometer, this heavy-duty 2WD Regular Cab is built for work and ready for any challenge. Under the hood, you'll find a robust 6.6L V8 engine delivering 401hp paired with a 10-speed shiftable automatic transmission and rear-wheel drive. Towing is effortless with a Class IV tow rating, trailer brake controller, hitch guidance, and gooseneck/5th wheel prep package. Stay comfortable and in control with manual climate control, power-adjustable black outside mirrors, cruise control, and an easy-lift tailgate. Safety comes standard, including Forward Collision Alert, Lane Departure Warning, Automatic Emergency Braking, HD Rear Vision Camera, and six airbags. The Sierra's vinyl split-bench seat, spray-on bedliner, 18" steel wheels, and advanced infotainment system with Bluetooth and a 7-inch touchscreen make it both practical and connected. Take on any job with confidence-visit us today to test drive this impressive Sierra 2500HD Pro.

Price includes: $500 - Buick & GMC Consumer Cash Program 26-40ACB-004 (Exp. 03/31/2026)
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Excludes tax, tag and other fees. This estimate is for general information purposes only.
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