Discover the ultimate in power, capability, and style with this exceptional 2021 GMC Sierra 2500HD AT4. This stunning truck is more than just a work vehicle - it's a true off-road warrior, ready to conquer any terrain with its impressive Duramax 6.6L V8 Turbodiesel engine and 4WD capabilities.
- Absolutely beautiful color combination
- Super low miles
- Runs and drives amazingly
- Very well equipped
This Sierra 2500HD AT4 is packed with premium features that will elevate your driving experience, including:
- Gooseneck/5th Wheel Package
- X31 Off-Road Package
- Heated and ventilated front bucket seats
- Heated 2nd-row outboard seats
- Wireless phone projection
- Integrated trailer brake controller
- Bed view camera with 2 trailer camera provisions
- 120-volt bed-mounted power outlet
The attention to detail is evident throughout, from the painted black grille surround to the spray-on bedliner with the AT4 logo. And with the added convenience of features like remote vehicle start, power windows, and steering wheel audio controls, this truck is ready to tackle any job or adventure with ease.
Imagine the confidence you'll feel behind the wheel of this exceptional GMC Sierra 2500HD AT4. Its powerful Duramax engine, robust 4WD system, and premium off-road capabilities make it the ultimate choice for those who demand the best. Whether you're hauling heavy loads, towing a trailer, or exploring the great outdoors, this truck is up for the challenge.
Experience the difference for yourself. Visit our showroom today and let us demonstrate the unparalleled capabilities of this 2021 GMC Sierra 2500HD AT4. We're confident you'll be impressed by its exceptional performance, uncompromising quality, and impressive list of features. Take the first step towards owning the ultimate work and adventure vehicle - test drive this remarkable Sierra 2500HD AT4 today.
Used 2021 GMCSierra 2500 HD AT4
- Diesel
- Exterior Color
- Summit White
- Interior Color
- JET BLACK WITH KALAHARI ACCENTS, PERFORATED FRONT
- Odometer
- 15,849 miles
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: 6.6L V8 DuraMax Diesel, Turbo
- VIN
- 1GT49PEY2MF308143
- Stock Number
- P08143
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 36 gal
- Horsepower: 445
Dealer Notes
KBB.com Consumer Reviews
- 2.0
Transmission trash
By Jason on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk - 3.0
Infotainment system unreliable!
By Brian C on Friday, June 27, 2025
The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another. - 5.0
Fantastic truck
By Jjj on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!
