2026 GMC Sierra 2500HD AT4
Turbocharged Diesel V8 6.6L/,
AT4,
Automatic,
# 360169
VIN
1GT4UPEY6TF124837
Dealer
Reliable Buick GMC
MSRP
$90,205
At a glance
Roseville, CA
EQUIPMENT DETAIL
Installed Packages & Accessories
Total $18,990
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Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel Compatible$9,990
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Transmission, 10-Speed Automatic$0
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Gvwr, 11,750 Lbs. (5330 Kg)$0
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Rear Axle, 3.42 Ratio$0
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At4 Preferred Equipment Groupincludes standard equipment$0
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Wheels, 20" (50.8 Cm) High Gloss Black Aluminum Wheels8 spokes$0
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Tires, Lt275/65R20 All-Terrain, Blackwall$0
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Summit White$0
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Seats, Front Bucketwith center console$0
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Jet Black With Kalahari Accents, Perforated Front Leather Seat Trim$0
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Audio System, 13.4" Diagonal Premium Gmc Infotainment System With Google Built In Apps Such As Navigation And Voice Assistanceincludes 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$0
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At4 Premium Plus Packageincludes (PDO) AT4 Preferred Package, (CF5) power sunroof, (CWM) Technology Package and (VXW) AT4 high clearance step, LPO$3,980
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Max Trailering Packageincludes 3500 HD Frame, 3500 HD Leaf Springs, 12" Rear axle, 3500 HD Shock Package, (CGN) spray-on bed liner and (Z6A) Gooseneck / 5th Wheel Prep provisions with bed stamped holes and caps$1,540
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Technology Packageincludes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15" Diagonal Head-Up Display$1,340
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At4 Preferred Packageincludes (UG1) Universal Home Remote, (A48) rear sliding power window and (U01) Roof Marker Lamps$350
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Engine Block Heater$100
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Alternator, 220 Amp$150
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Gooseneck / 5Th Wheel Prep Package -- Hitch Platform To Accept Gooseneck Or 5Th Wheel Hitch.Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).$545
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Exhaust Brake$0
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Sunroof, Power$995
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Assist Steps, Power Retractable, Blackincludes LED lighting$0
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Winter Grille Cover$0
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License Plate Kit, Front, Incandescent Lighting$0
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Multicolor 15" Diagonal Head-Up Display$0
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Window, Power, Rear Sliding With Rear Defogger$0
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Universal Home Remote$0
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Rear Camera Mirrorinside rearview auto-dimming with full camera display$0
Standard Equipment
Exterior
- Bed Step, Black integrated on forward portion of bed on driver and passenger side
- 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.)
- Bumper, front, body-color lower
- Bumper, rear body-color with bumper CornerSteps
- Cargo tie downs (12), fixed, rated at 500 lbs per corner
- CornerStep, rear bumper
- Door handles, body-color
- Fog lamps, LED
- Glass, deep-tinted
- Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
- Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
- IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
- Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
- LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
- Mirror caps, high gloss Black
- 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
- Moldings, beltline, Black
- Tailgate and bed rail protection caps, top
- Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
- 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
- Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
- Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
- Tire, spare LT275/70R18 all-terrain, blackwall
- Tires, LT275/65R20 all-terrain, blackwall
- Wheelhouse liners, rear
- Wheels, 20" (50.8 cm) High Gloss black aluminum wheels 8 spokes
- Wipers, front rain-sensing
Installed
- ALTERNATOR, 220 AMP
- ASSIST STEPS, POWER RETRACTABLE, BLACK includes LED lighting
- AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
- AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote, (A48) rear sliding power window and (U01) Roof Marker Lamps
- AT4 PREMIUM PLUS PACKAGE includes (PDO) AT4 Preferred Package, (CF5) power sunroof, (CWM) Technology Package and (VXW) AT4 high clearance step, LPO
- 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)
- ENGINE BLOCK HEATER
- ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
- EXHAUST BRAKE
- GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
- GVWR, 11,750 LBS. (5330 KG)
- JET BLACK WITH KALAHARI ACCENTS, PERFORATED FRONT LEATHER SEAT TRIM
- LICENSE PLATE KIT, FRONT, INCANDESCENT LIGHTING
- MAX TRAILERING PACKAGE includes 3500 HD Frame, 3500 HD Leaf Springs, 12" Rear axle, 3500 HD Shock Package, (CGN) spray-on bed liner and (Z6A) Gooseneck / 5th Wheel Prep provisions with bed stamped holes and caps
- MULTICOLOR 15" DIAGONAL HEAD-UP DISPLAY
- REAR AXLE, 3.42 RATIO
- REAR CAMERA MIRROR inside rearview auto-dimming with full camera display
- SEATS, FRONT BUCKET with center console (STD)
- SUMMIT WHITE
- SUNROOF, POWER
- TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15" Diagonal Head-Up Display
- TIRES, LT275/65R20 ALL-TERRAIN, BLACKWALL (STD)
- TRANSMISSION, 10-SPEED AUTOMATIC
- UNIVERSAL HOME REMOTE
- WHEELS, 20" (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS 8 spokes (STD)
- WINDOW, POWER, REAR SLIDING WITH REAR DEFOGGER
- WINTER GRILLE COVER
Interior
- Adaptive Cruise Control
- Air conditioning, dual-zone automatic climate control
- Air vents, rear
- Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
- 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
- Bluetooth for phone connectivity to vehicle infotainment system
- Bose Sound System, premium 7-speaker system with Richbass woofer
- Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
- Compass, located in instrument cluster
- Defogger, rear-window electric
- Door locks, power
- Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
- Driver memory recalls driver "presets" for power driver seat and outside mirrors
- Exterior Temperature Display, located in radio display
- Floor covering, color-keyed carpeting
- GMC Premium information Display- 13.4" diagonal Multicolor touch screen
- Keyless Open and Start includes remote keyless entry
- Mirror, inside rearview auto-dimming
- Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
- Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
- Premium Floor Liners with removable carpet insert, front
- Premium Floor Liners with removable carpet insert, rear
- Rear Seat Reminder
- Remote vehicle starter system
- Seat adjuster, driver 10-way power including lumbar
- Seat adjuster, passenger 10-way power including lumbar
- Seat trim, Perforated front Leather
- 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)
- Seating, heated driver and front outboard passenger
- Seats, front bucket with center console
- Seats, heated second row outboard seats
- Seats, ventilated driver and front passenger
- SiriusXM Trial Subscription
- 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.)
- Steering column, manual Tilt-Wheel and telescoping
- Steering wheel audio controls
- Steering wheel, heated
- Steering wheel, wrapped
- Theft-deterrent system, unauthorized entry
- USB ports, (2) charge-only, rear
- USB Ports, 2 (first row) located on console
- USB Ports, 2, Charge/Data ports located inside center console
- Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
- Window, power front, passenger express up/down
- Windows, power front, drivers express up/down
- Windows, power rear, express down
- Wireless Charging
- Wireless Phone Projection for Apple CarPlay and Android Auto
Mechanical
- Air filter, heavy-duty
- Air filtration monitoring
- Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
- Auto-locking rear differential
- 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.)
- Brake lining wear indicator
- Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
- Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
- Cooling, auxiliary external transmission oil cooler
- Cooling, external engine oil cooler
- 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)
- Four wheel drive
- Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
- GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)
- Hill Descent Control
- 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.)
- Pickup bed includes bed assist step
- Push button start
- Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
- Recovery hooks, Red
- Skid Plates protect the oil pan, front axle and transfer case
- Steering, Digital Variable Steering Assist This system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
- Suspension, Off-Road includes twin-tube shocks
- Trailer brake controller, integrated
- Transfer case, two-speed active, electronic Autotrac with push button control
- Transmission, 10-speed automatic
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.)
- Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
- 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
- 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.)
- Daytime Running Lamps, LED signature lighting
- Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
- Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
- Front and Rear Park Assist, Ultrasonic
- Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
- 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.
- Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
- Hitch Guidance with hitch view with Image adjustment, Pan/Zoom/Tilt
- Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
- LED Signature DRL's
- 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.)
- OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
- Rear Cross Traffic Alert
- Rear Seat Belt Indicator
- Safety Alert Seat
- Seat Belt Adjustable Guide Loops, front row only
- StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
- 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
- Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
- Trailer Camera Provisions and trailer viewing software
- Trailer Side Blind Zone Alert
- Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
SPECS
Stock:
360169
VIN:
1GT4UPEY6TF124837
Dealer:
Reliable Buick GMC
Type:
New
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Certified:
No
Trim:
AT4
Model Number:
TK20743
Body Style:
Pickup
Transmission:
Automatic
Transmission Description:
10-Speed Automatic
Transmission Speed:
10
Doors:
4
Cylinders:
8
Displacement:
6.6L
Block Type:
V
Aspiration Type:
Direct Injection
Engine Description:
Turbocharged Diesel V8 6.6L/
Drivetrain:
4WD
Fuel Type:
Diesel Fuel
Wheelbase Code:
159
Exterior Color:
Summit White
Interior Color:
Jet Black with Kalahari accents
ABOUT THIS VEHICLE
Summit White 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel
Great Value, Fresh Oil Change, Multi Point Inspection Performed by Certified Technician, Safety Inspected, Don't Like the Price? Make Us An Offer!, 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.
Reliable...Simple & Fair.
We run a simple business with thousands of happy customers to show for it.
Your Health and Safety are Our Top Priority! We thoroughly sanitize our test drive vehicles and are able to conduct your purchase remotely. Feel free to buy from the Safety and Comfort of Home!
Buy Online & We Will Deliver Your Next Vehicle to Your Door! Or, come see us in the Roseville Automall to meet our team and find your next vehicle.
Disclaimer (important stuff, but not as cool): Please call dealer for inventory status as many third party sites do not properly annotate stock status. See dealer website for complete pricing details and conditions. Price does not include tax, title, and license fees. Price includes non-conditional discounts that apply to all customers. Certain customers may qualify for additional conditional offers not shown. Previous Courtesy Transportation Vehicles may also include an incentive from GM (see dealer for details). Please see dealer website for official detailed pricing breakdown as third party sites are unable to fully display detailed descriptions and can sometimes contain discount errors. All prices plus government fees and taxes, any finance charges, and dealer processing charge, any electronic filing charge, and any emissions testing charge. Price includes the following rebates, not all customers qualify for all rebates:$500 - Buick & GMC Consumer Cash Program. Exp. 09/30/2025