Key Features

An icon representing Body Type
Body Type Pickup
An icon representing Fuel Type
Fuel Type
An icon representing Engine Description
Engine Description
An icon representing Drivetrain
Drivetrain 4WD
An icon representing Cab Type
Cab Type Crew Cab
An icon representing Trim
Trim AT4

Vehicle Details

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Overview

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Stock Number

G264174

Stock Type

New

Year

2026

Make
GMC
Model
Sierra 2500
Model Code

TK20743

Cab Type

Crew

Vehicle Trim

AT4

Body Type
Pickup
VIN

1GT4UPEY6TF160138

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

4WD

Transmission

Transmission Type

Automatic

manufacturing

Engine

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Engine Description

6.6L Duramax Turbo-Diesel V8 engine

Engine Cylinder Count

8

Engine Model

L5P

Engine Size (L)

6.6

Horsepower

470

Fuel Type

Diesel

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Seating

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Seat Dimensions

Seating Capacity

5

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Colors

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Exterior Color

White

Interior Color

Jet Black with Kalahari accents, Perforated Front Leather seat trim

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Vehicle Options

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  • Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
  • Defogger, rear-window electric
  • Skid Plates protect the oil pan, front axle and transfer case
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
  • In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
  • CornerStep, rear bumper
  • Exterior Temperature Display, located in radio display
  • OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • Rear Seat Belt Indicator
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
  • Fog lamps, LED
  • Safety Alert Seat
  • Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Four wheel drive
  • Bumper, rear body-color with bumper CornerSteps
  • Seats, heated second row outboard seats
  • Transfer case, two-speed active, electronic Autotrac with push button control
  • Seating, heated driver and front outboard passenger
  • 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
  • Floor covering, color-keyed carpeting
  • Bed Step, Black integrated on forward portion of bed on driver and passenger side
  • SiriusXM Trial Subscription
  • Wireless phone projection for Apple CarPlay and Android Auto
  • Air vents, rear
  • Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Glass, deep-tinted
  • Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
  • Steering wheel, heated
  • Door handles, body-color
  • Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
  • Adaptive Cruise Control
  • Wipers, front rain-sensing
  • 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.)
  • Wheels, 20" (50.8 cm) High Gloss black aluminum wheels 8 spokes (STD)
  • Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
  • Tire, spare LT275/70R18 all-terrain, blackwall
  • Remote vehicle starter system
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seat Belt Adjustable Guide Loops, front row only
  • LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
  • Rear Seat Reminder
  • Seats, ventilated driver and front passenger
  • Moldings, beltline, Black
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • LED Signature DRL's
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
  • HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a center stack display. Includes front camera washer.
  • Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Window, power front, passenger express up/down
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • 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
  • Hill Descent Control
  • Cooling, external engine oil cooler
  • Theft-deterrent system, unauthorized entry
  • Audio System, 13.4" diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance includes color touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD)
  • Rear Cross Traffic Alert
  • SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy, visit siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
  • 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
  • Suspension, Off-Road includes twin-tube shocks
  • Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lighting
  • Brake lining wear indicator
  • Trailer Side Blind Zone Alert
  • USB Ports, 2, Charge/Data ports located inside center console
  • Mirror caps, high gloss Black
  • Keyless Open and Start includes remote keyless entry
  • Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
  • Door locks, power
  • Seat adjuster, driver 10-way power including lumbar
  • Premium Floor Liners with removable carpet insert, front
  • 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.)
  • Tires, LT275/65R20 all-terrain, blackwall (STD)
  • Bumper, front, body-color lower
  • Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions
  • Seats, front bucket with center console (STD)
  • Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
  • USB ports, (2) charge-only, rear
  • 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 with Hitch View with image adjustment, Pan/Zoom/Tilt
  • Push Button Start
  • Auto-locking rear differential
  • Steering wheel audio controls
  • Windows, power front, drivers express up/down
  • Air conditioning, dual-zone automatic climate control
  • Recovery hooks, Red
  • Wireless Charging
  • Bluetooth for phone connectivity to vehicle infotainment system
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Bose Sound System, premium 7-speaker system with Richbass woofer
  • Compass, located in instrument cluster
  • GMC Premium information Display- 13.4" diagonal Multicolor touch screen
  • Seat adjuster, passenger 10-way power including lumbar
  • Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
  • Premium Floor Liners with removable carpet insert, rear
  • USB Ports, 2 (first row) located on console
  • Bedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Available with Ship Thru code (TCH), not available with any other Ship Thru code.)
  • Mirror, inside rearview auto-dimming
  • Wheelhouse liners, rear
  • Cooling, auxiliary external transmission oil cooler
  • Air filtration monitoring
  • Seat trim, Perforated front Leather
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Seat, Up-level Rear with Storage Package 60/40 folding bench, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
  • Windows, power rear, express down
  • Trailer Camera Provisions and trailer viewing software
  • Pickup bed includes bed assist step
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
  • Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Steering wheel, wrapped
  • Front and Rear Park Assist, ultrasonic
  • Tailgate and bed rail protection caps, top
  • Steering column, manual Tilt-Wheel and telescoping
  • Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
  • Window, power, rear sliding with rear defogger
  • LPO, All-weather floor liners, 1st and 2nd rows
  • Capped Fuel Fill
  • Rear axle, 3.42 ratio
  • AT4 Premium Plus Package
  • Technology Package
  • Gooseneck / 5th Wheel Prep Package -- Hitch platform to accept Gooseneck or 5th Wheel hitch.
  • Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible
  • Engine block heater
  • Multicolor 15" Diagonal Head-Up Display
  • Exhaust brake
  • High idle switch
  • Universal Home Remote
  • AT4 Preferred Package
  • Jet Black with Kalahari accents, Perforated Front Leather seat trim
  • Rear Camera Mirror
  • Winter Grille Cover
  • LPO, Black GMC emblems
  • LPO, Hitch Package
  • AT4 Preferred Equipment Group
  • LPO, Black Sierra nameplates
  • Option/package discount
  • Assist steps, power retractable, Black
  • Battery, heavy-duty dual 730 cold-cranking amps/70 Amp-hr
  • LPO, Black Badging Package
  • Sunroof, power
  • Summit White
  • License plate kit, front, Incandescent lighting
  • GVWR, 11,350 lbs. (5148 kg)
  • Alternator, 220 amp
  • Emissions, Federal requirements
  • Lamps, Smoked Amber roof marker, (LED)
  • Transmission, 10-speed automatic
  • AT4 PREMIUM PLUS PACKAGE DISCOUNT

Bruner Early GMC ci2 Test Site

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Listing Notes
Looking for the ultimate heavy-duty power player in Brownwood? This 2026 GMC Sierra 2500HD AT4 in Summit White is engineered for those who need maximum capability without sacrificing premium comfort. Available now at Bruner Auto Group, this Sierra 2500HD is ready to dominate the Texas job site or haul your biggest trailers to Lake Brownwood with ease.

Performance & Towing Dominance:
Powered by the legendary Duramax 6.6L V8 Turbo-Diesel engine and paired with the world-class Allison 10-speed automatic transmission, this truck is built to pull.

Towing Tech: Equipped with the Gooseneck/5th Wheel Prep Package, Max Trailering Package, and Hitch Guidance with Hitch View, making it easy to hook up and head out across Central Texas.

Off-Road Prowess: The X31 Off-Road Package and Rancho Shocks ensure that whether you are on the highway or a rugged ranch road in Coleman, you have the traction and stability you need.

Power & Utility: Features a 120-Volt Bed Mounted Power Outlet, LED Cargo Area Lighting, and the iconic GMC MultiPro Tailgate with Step Lights for ultimate job site functionality.

Interior Luxury & Advanced Technology:
Inside, the Jet Black with Kalahari Accents Perforated Leather interior provides a sophisticated yet durable cabin.

High-Tech Cockpit: Features a massive 13.4 diagonal touchscreen with Google built-in, a 12.3 Digital Driver Information Center, and a 15 Diagonal Head-Up Display to keep your eyes on the road.

Premium Comfort: Stay comfortable in any Texas weather with Heated and Ventilated front seats, Heated 2nd-row seats, and a Heated steering wheel.

Audio Experience: Enjoy your favorite music through the Bose Premium 7-Speaker Sound System.

Safety & Convenience:
Drive with confidence thanks to GMC Pro Safety, including Automatic Emergency Braking, Forward Collision Alert, and Lane Departure Warning. Maneuvering in tight spaces is simplified with HD Surround Vision and Bed View Camera.

Why Choose Bruner Auto Group in Brownwood?
At Bruner Auto Group, we have been a part of the Brownwood and Early communities for generations. We understand what Texas truck owners needdurability, power, and a local team they can trust. When you buy from us, you get more than a vehicle; you get the peace of mind that comes with our dedicated local service and support.

Test drive this powerhouse today! Visit us at our Brownwood location to experience the 2026 GMC Sierra 2500HD AT4 for yourself. We are conveniently located for drivers in Bangs, Comanche, and Goldthwaite.

VIN: 1GT4UPEY6TF160138
Stock #: G264174
Condition: New - Retail
Location: Bruner Auto Group, Brownwood, TX 76801
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