2025 GMC Sierra 2500HD AT4 4WD DURAMAX DIESEL "” PREMIUM HEAVY-DUTY TRUCK Looking for a 2025 GMC Sierra 2500HD AT4 with serious diesel power, premium capability, and unmistakable GMC styling? This 2025 Sierra 2500HD AT4 Crew Cab 4WD combines the legendary Duramax 6.6L V8 Turbodiesel, a smooth 10-speed automatic transmission, and rugged AT4 engineering into one highly desirable heavy-duty pickup. With only 38,885 miles, this Gray Sierra 2500HD AT4 is ready for work, towing, hauling, off-road adventures, and everyday driving throughout Austin and Central Texas. VEHICLE HIGHLIGHTS 2025 GMC Sierra 2500HD AT4 Duramax 6.6L V8 Turbodiesel 10-Speed Automatic Transmission 4WD / Four-Wheel Drive Crew Cab 38,885 Miles Gray Exterior Jet Black Interior with Kalahari Accents AT4 Off-Road Performance Heavy-Duty Towing & Hauling Capability Premium GMC truck design and interior Built for demanding jobs, towing, Texas roads, and weekend adventures The Sierra 2500HD AT4 delivers the combination truck buyers search for when capability is non-negotiable. Its Duramax diesel engine and 4WD drivetrain provide the muscle needed for serious towing and hauling, while the AT4 package adds a more aggressive, adventure-ready personality. The Crew Cab provides spacious seating for passengers, making this heavy-duty diesel equally appealing as a work truck, tow vehicle, family truck, or Texas weekend rig. WHY CONSIDER THIS SIERRA 2500HD AT4? If you're comparing GMC Sierra 2500HD, Duramax diesel, 2500HD AT4, heavy-duty trucks, or 4WD diesel pickups near Austin, this Sierra deserves a close look. The combination of 2025 model-year styling, Duramax power, 4WD capability, Crew Cab space, AT4 off-road attitude, and 38,885 miles makes this a compelling choice for drivers who want premium capability without stepping up to a larger 3500HD. Whether you're towing equipment around Austin, hauling in Round Rock, working in Georgetown, traveling through Pflugerville, or heading toward San Antonio, this GMC Sierra 2500HD AT4 is built to handle Texas demands. SHOP COÂVERT FORD IN CENTRAL TEXAS Shop this 2025 GMC Sierra 2500HD AT4 Duramax Diesel at Covert Ford and discover why buyers from across Central Texas choose us for quality pre-owned trucks. Serving Austin, Round Rock, Georgetown, Pflugerville, Cedar Park, Leander, Kyle, Buda, Dripping Springs, Lakeway, Bastrop, Elgin, San Marcos, New Braunfels, and San Antonio. Central Texas ZIP Codes: 78701, 78702, 78703, 78704, 78705, 78717, 78729, 78730, 78731, 78732, 78734, 78735, 78736, 78737, 78738, 78739, 78741, 78745, 78746, 78748, 78749, 78750, 78757, 78758, 78759, 78613, 78626, 78628, 78640, 78641, 78660, 78664, 78665, 78666, 78681, 78602, 78610, 78620, 78634, 78653, 78654, 78660, 78661, 78130, 78132, 78154. Call Covert Ford at to schedule your appointment or learn more about this 2025 GMC Sierra 2500HD AT4 Duramax 4WD.