Conquer the toughest terrain with confidence in the 2025 GMC Sierra 2500HD AT4X. This powerful workhorse is engineered to tackle any challenge, whether you're hauling heavy loads or venturing off the beaten path.- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission and 4WD- Onyx Black exterior with bold black accents- Engine block heater for cold weather performance- 220-amp alternator for reliable electrical powerThe Sierra 2500HD AT4X is packed with premium features that elevate your driving experience:- Bose Premium Series 12-speaker audio system- Heated and ventilated front seats, heated rear seats- Heads-up display, 360-degree camera system- Wireless charging, Apple CarPlay/Android AutoDiscover the uncompromising capability and refined comfort of the 2025 GMC Sierra 2500HD AT4X. Schedule your test drive today and experience the ultimate in heavy-duty truck performance.