Vehicle highlights
- 4WD
- Apple CarPlay
- Android Auto
- Blind Spot Assist
- Backup Camera
- Heated Seats
Price and listing details
Price breakdown
- List price
- $74,607
- Fees, rebates & discounts
- +$437
- Advertised price
- $75,044
This is the net difference between the list and advertised prices. It may include fees, rebates, discounts, or other dealer adjustments. Confirm details and eligibility with the dealer.
Mandatory dealer charges are included in this advertised price. The dealer did not provide Car Handshake with an itemized fee breakdown. View the dealer’s listing or contact the dealer for details. Taxes, title, registration, and other government charges are additional.
- VIN
- 1GT4UPE73TF420566
- Seen in inventory
- Listing updated
Confirm availability and transaction details with the dealership.
Specifications
Overview
- Year
- 2026
- Make
- GMC
- Model
- Sierra 2500 HD
- Trim
- Crew Cab, Standard Bed, At4, 4wd
- Condition
- Used
- Body
- Pickup
Engine & drivetrain
- Fuel
- Gasoline
- Driveline
- 4WD
- Transmission
- Automatic
- Engine
- 6.6L V-8 direct injection, variable valve control, regular gasoline, engine with 401HP
Exterior & interior
- Exterior color
- White
- Interior color
- Black
Seating and powertrain
- Seats
- Not confirmed
- Third row
- Not confirmed
- Powertrain
- Gasoline
Seat count does not confirm a third row. Check unconfirmed details with the dealership.
Features
45 listedSafety
12
- Backup Camera
- Forward Automatic Emergency Braking
- Parking Sensors (Front and Rear)
- Lane Departure Warning
- Forward Collision Warning
- Pedestrian Automatic Emergency Braking
- Cruise Control
- Blind Spot Assist
- Forward Collision Alert with Automatic Braking, Front Pedestrian Braking
- Automatic Emergency Braking brake assist system
- UltraSonic front and rear parking sensors
- Rear Seat Reminder rear seat check warning
Comfort & interior
10
- Remote Start
- Opening Sunroof
- Leather Seating
- Heated Steering Wheel
- Sun / Moonroof
- Cooled Seats
- Heated Seats
- Power Seats
- Climate Control
- Keyfob remote start
Technology
9
- Apple CarPlay
- Android Auto
- Head-up Display
- Navigation
- Bluetooth
- Wi-Fi Hotspot capable mobile hotspot internet access
- Internet radio capability
- 6 USB ports, Hill start assist
- 1 exterior 120V AC power outlet
Exterior & utility
9
- Trailer Hitch
- Trailer Brake Controller
- Tow Hitch
- Hitch Guidance vehicle to trailer hitching assist
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Tinted Windows
- LED daytime running lights
Performance
5
- AutoTrac part and full-time 4WD
- 6.6L V-8 direct injection, variable valve control, regular gasoline, engine with 401HP
- 6.6L V-8
- Driver selectable steering effort
- Selectable mode transmission, Sequential shift control, Automatic
Dealer notes
The GMC Sierra 2500HD AT4 4WD at Napleton Chevrolet Buick GMC in Beaver Dam is a heavy-duty pickup configured for serious work: a 6.6L V8, a 10-speed automatic, the AT4 Premium Plus Package, and a Gooseneck/5th Wheel Prep Package that positions this truck for haulers who mean business. Summit White exterior pairs with a Jet Black with Kalahari Accents interior finished in perforated front leather seat trim.
At a glance: 6.6L V8 · 10-speed automatic · 4WD with two-speed AutoTrac transfer case · crew cab · Summit White / Jet Black with Kalahari Accents · pre-owned
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The AT4 Premium Plus Package brings a power sunroof, power-retractable black assist steps, and the Technology Package. The AT4 Equipment Group goes well beyond that: ventilated and heated front seats, heated second-row outboard seats, a Bose premium audio system, HD Surround Vision with a bed-view camera, and a 13.4-inch diagonal GMC Infotainment System with Google built-in apps including navigation and voice assistance.
Wireless phone projection covers Apple CarPlay and Android Auto wirelessly, a mobile hotspot keeps the cab connected, and a multicolor 15-inch diagonal head-up display puts speed and nav information at eye level. On the road, the 20-inch high-gloss black aluminum wheels ride on LT275/65R20 all-terrain tires, and the X31 Off-Road Package is included in the equipment group.
Towing and work equipment is substantial. The ProGrade Trailering System is paired with trailer camera provisions, trailer side blind zone alert, and rear cross traffic alert. The Gooseneck/5th Wheel Prep Package adds a hitch platform ready to accept a gooseneck or fifth-wheel hitch, and the Snow Plow Prep/Camper Package includes a 220-amp alternator, skid plates, and increased front GAWR with roof emergency light provisions.
A 120-volt bed-mounted power outlet and LED cargo area lighting round out the working end of the truck. Ultrasonic front and rear park assist and a rear camera mirror help when maneuvering a loaded rig.
This pre-owned Sierra 2500HD also includes the AT4 Preferred Package with a power sliding rear window with defogger, smoked amber LED roof marker lamps, and universal home remote. Front rain-sensing wipers, remote vehicle starter, keyless open and start, wireless charging, and LPO front and rear molded splash guards in black keep daily use straightforward.
A spray-on pickup bedliner with GMC logo protects the bed, and LPO all-weather floor liners cover the first and second rows.
Napleton Chevrolet Buick GMC is on Kellom Rd. in Beaver Dam — about 45 minutes from Madison, an hour from Milwaukee, and 35 minutes from Fond du Lac, serving drivers from Hartford, West Bend, Portage, and the surrounding area. Napleton has been a family-owned automotive group for more than 80 years, with a no-pressure approach to finding the right truck.
If you haul heavy and need a cab that works as hard as the bed, bring the trailer and put this Sierra 2500HD to the test at N8167 Kellom Rd., Beaver Dam, WI.
Dealership location
Napleton Chevrolet Buick GMC Beaver Dam
N8167 Kellom Rd, Beaver Dam, WI, 53916










