Wireless Apple CarPlay & Wireless Android Auto | Duramax® 6.6L V8 Turbo Diesel | SLT Premium Package | X31 Off-Road Package | Bose® Premium Audio System | HD Surround Vision w/ Bed View | Ventilated Front Bucket Seats | Spray-On Bedliner The 2026 GMC Sierra 3500 HD SLT Crew Cab 4WD, finished in a professional Sterling Metallic with a Jet Black interior, is a heavy-duty powerhouse engineered for the most demanding tasks. It is equipped with the legendary Duramax® 6.6L V8 Turbo Diesel engine, delivering massive torque and towing confidence through an Allison® 10-speed automatic transmission. This configuration features a 5,488 kg (12,100 lb) GVWR and an Autotrac 2-speed transfer case, ensuring exceptional control and traction regardless of the load or terrain.This SLT model is highly optioned with the SLT Premium Package, which transforms the cabin with ventilated front bucket seats, heated second-row outboard seats, and a Bose® premium audio system. The package also adds critical towing technology, including HD Surround Vision, Bed View Camera, Trailer Side Blind Zone Alert, and Adaptive Cruise Control. For rugged capability, the X31 Off-Road & Protection Package adds an off-road suspension with Rancho twin-tube shocks, skid plates, hill descent control, and 20 bright face aluminum wheels.The high-tech cockpit features a 13.4 diagonal infotainment touchscreen with Google Built-In and a 12.3 digital Driver Information Centre. Exterior utility is maximized with the GMC MultiPro Tailgate (EZ-Lift power lock & release), LED cargo bed lighting, and a factory spray-on bedliner. With animated LED projector headlamps, power-extending trailering mirrors, and integrated bedsteps, this Sierra 3500 HD is as refined as it is capable. Stock # T4246890 AMVIC LICENSED DEALER