This 2025 GMC Sierra 2500HD AT4 delivers premium capability wrapped in striking black with a crew cab design built for serious work and refined living. Powered by the legendary Duramax 6.6L V8 Turbodiesel engine paired with a smooth 10-speed automatic transmission, this 4WD truck handles any terrain with confidence. At just over 28,000 miles, this pre-owned truck has been freshly serviced with an oil change and represents an outstanding value for truck buyers seeking proven performance.- Universal Home Remote- LED Smoked Amber Roof Marker Lamps- Hill Descent Control- Power Sliding Rear Window w/Defogger- AT4 Preferred Package- X31 Off-Road Package- Heated and Ventilated Leather Front Seats- Bose Premium 7-Speaker Sound System with Apple CarPlay/Android Auto- HD Surround Vision Camera System- Ultrasonic Front & Rear Park AssistThe AT4 trim elevates this Sierra with both capability and comfort—leather appointments throughout the crew cab, dual-zone automatic climate control, and heated rear seats ensure every passenger enjoys the ride. The off-road packages combine with electronic hill descent control and all-terrain suspension to instill confidence whether you're navigating city streets or remote trails. Advanced safety technology includes automatic emergency braking, rear cross-traffic alert, and a full suite of airbags, while the wireless charging and multiple USB ports keep your devices powered throughout the day.Head to our lot today to experience this powerful Sierra firsthand. Contact us to schedule a test drive and discover why this truck has earned its reputation as one of the industry's most capable diesel pickups.