13.4 GMC Premium Infotainment | Duramax 6.6L V8 Turbo Diesel | Gooseneck/5th Wheel Prep Pkg | X31 Off-Road & Protection Pkg | SLE Convenience Pkg | 12.3 Digital Driver Centre | Spray-On Bedliner | Chrome Assist Steps The 2026 GMC Sierra 3500HD SLE Crew Cab 4WD, finished in Sterling Metallic with a Jet Black interior, is a heavy-duty powerhouse equipped with the Duramax 6.6L V8 Turbo Diesel engine and a 10-speed automatic transmission. This Single Rear Wheel (SRW) model is built for serious towing, featuring the Gooseneck/5th Wheel Prep Package, an integrated trailer brake controller, a high idle switch, and power-adjustable vertical trailering mirrors with power-folding and auto-dimming glass. The X31 Off-Road & Protection Package adds an off-road suspension with twin-tube Rancho shocks, skid plates, and Hill Descent Control. Exterior highlights include 18 machined aluminum wheels, chrome bumpers, chrome assist steps, and LED roof marker lamps. The modern cabin is anchored by a 13.4 diagonal colour touchscreen with Google built-in, wireless Apple CarPlay, and wireless Android Auto, complemented by a 12.3 reconfigurable digital driver information centre. The SLE Convenience Package enhances comfort with a 10-way power driver seat and dual-zone automatic climate control. Versatility is provided by the front 40/20/40 bench seat with lockable under-seat storage and a 60/40 folding rear bench. Additional conveniences include the Remote Start Package, a spray-on bedliner, and LED front fog lamps. Safety is prioritized with the Sierra HD Pro Safety suite, featuring Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, and Lane Departure Warning. The truck is also equipped with an HD Rear Vision Camera, IntelliBeam auto high beams, and a 2-speed electronic shift transfer case. For maximum utility, the vehicle includes a 120V power outlet on the instrument panel and a bed-mounted 120V outlet, making this Sierra 3500HD SLE a reliable and versatile partner for the most demanding jobs. AMVIC LICENSED DEALER