This 2023 GMC Sierra 2500HD AT4 delivers commanding capability with the legendary Duramax 6.6L V8 Turbodiesel engine, engineered to handle the most demanding jobs with authority.- Power-Retractable Black Assist Steps with LED lighting- Duramax 6.6L V8 Turbodiesel with 445 hp and 910 lb-ft of torque- 20 Machined Aluminum Wheels with high-gloss Black accents- Bed View Camera with Two Trailer Camera Provisions- X31 Off-Road Package with Hill Descent Control- 2-Speed Active Transfer Case and Off-Road Suspension- Heated and Ventilated Front Bucket Seats with Perforated Leather- Premium GMC Infotainment System with Apple CarPlay and Android Auto- SiriusXM with 360L satellite radio- Keyless Open & Start with Remote Vehicle Starter System- 120-Volt Bed Mounted Power Outlet and Instrument Panel Power Outlet- Integrated Trailer Brake Controller with Hitch Guidance- Dual Zone Automatic Temperature Control with Heated Rear Seats- Heavy-Duty 220 Amp Alternator and Engine Block Heater- Spray-On Pickup Box Bed Liner with AT4 LogoBuilt with the AT4 package, this Sierra stands ready for serious work and spirited exploration. The turbodiesel powertrain delivers the torque you need for towing and hauling, while the 2-Speed Active Transfer Case and off-road suspension keep you composed in challenging terrain. Inside, heated and ventilated leather-appointed front seats combine with dual-zone climate control to ensure comfort on every journey.The integrated technology suite keeps you connected and informed. The infotainment system pairs seamlessly with your smartphone through Apple CarPlay and Android Auto, while the bed view camera and integrated trailer brake controller simplify towing operations. The remote vehicle starter and keyless entry system add convenience to your daily routine.This truck is equipped for real-world demands. The heavy-duty 220-amp alternator provides reliable electrical power for accessories and auxiliary equipment. An engine block heater ensures reliable cold-weather starts, while the spray-on bed liner protects your cargo area. Red recovery hooks and the integrated trailering system app demonstrate GMC's attention to functionality.Every detail reflects the AT4's rugged character. Power-retractable assist steps with integrated LED lighting ease entry and exit, while the 20-inch machined aluminum wheels with black accents strike the balance between utility and presence. The smoked amber roof marker lamps and deep-tinted glass complete the distinctive styling.With 59,257 miles, this Sierra has been well-maintained and represents a significant opportunity to own a modern, capable heavy-duty truck. Whether you need it for work or weekend adventures, this AT4 delivers the performance and features that serious truck owners demand.Contact us today to arrange a test drive and experience the capability and refinement of this Sierra 2500HD AT4 firsthand.