The 2025 GMC Sierra 2500HD AT4 is a rugged and capable heavy-duty pickup that's ready to take on any challenge. With its powerful Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this truck delivers exceptional towing and hauling performance.<br><br>- CLEAN CARFAX<br>- ONE OWNER CLEAN CARFAX<br>- ENGINE BLOCK HEATER<br>- ALTERNATOR, 220 AMP<br>- 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible) (Includes (K05) Engine Block Heater) (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm)<br>- Preferred Equipment Group 4SB<br>- X31 Off-Road Package<br><br>This Sierra 2500HD AT4 is packed with premium features that elevate the driving experience, including a Bose Premium 7-Speaker Sound System, SiriusXM with 360L Trial Subscription, Steering Wheel Audio Controls, Electric Rear-Window Defogger, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, Push Button Start, Remote Vehicle Starter System, and much more.<br><br>The interior offers exceptional comfort and convenience with features like Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Ventilated Driver & Front Passenger Seats, and a Floor-Mounted Center Console. Advanced safety and technology features, such as Rear Cross Traffic Alert, Trailer Cam Provisions & Trailer Viewing Software, Ultrasonic Front & Rear Park Assist, and Wireless Charging, provide added peace of mind and connectivity.<br><br>Rugged and refined, the 2025 GMC Sierra 2500HD AT4 is a true workhorse that combines impressive capability with premium amenities. Experience the difference for yourself - schedule a test drive today.