13.4 GMC Premium Infotainment | Duramax® 6.6L Turbo Diesel | SLE Value Package | Gooseneck/5th Wheel Prep | Dual Rear Wheels | Adaptive Cruise Control | Heated Seats & Steering Wheel | Power Folding Trailering Mirrors The 2026 GMC Sierra 3500 SLE Crew Cab 4WD Dual Rear Wheel (DRW), crisp in Summit White with a refined Jet Black cloth interior, offers the ultimate combination of heavy-duty workspace utility and commercial towing excellence. Propelled by the legendary Duramax® 6.6L Turbo Diesel V8 engine, this dually is built to handle maximum payloads and massive trailers using a 3.42 rear axle ratio, a 6,350 kg (14,000 lb) GVWR, and a high idle switch. This configuration features a factory Gooseneck/5th Wheel Prep Package, an Autotrac 2-speed transfer case, a trailer brake controller, an integrated upfitter switch kit, an external engine oil cooler, and an auxiliary transmission cooler. The classic exterior features chrome bumpers, 18 polished forged aluminum wheels, rear wheelhouse liners, an EZ-Lift power locking tailgate, integrated bedsteps, a cornerstep rear bumper, and dealer-installed chrome assist steps. The heavily optioned cabin blends commercial durability with modern passenger luxuries via the SLE Value and Preferred packages. The tech-focused hub centers around a 13.4 diagonal colour touchscreen GMC Premium Infotainment system featuring Google built-in, wireless Apple CarPlay, wireless Android Auto, and a 12.3 reconfigurable digital driver cluster. Drivers and passengers are treated to heated front seats with a 10-way power adjustment for the driver, a heated wrapped steering wheel, dual-zone automatic climate control, and a Rear Seat Storage Package. Everyday comfort is maximized by outside power-adjustable vertical trailering mirrors with power-folding capability and auto-dimming upper glass, a rear power-sliding window, a universal home remote, remote vehicle start, and dealer-installed all-weather floor liners. Safety operations and trailering confidence are comprehensive, utilizing advanced driver awareness systems and the Sierra HD Pro Safety suite. The Sierra 3500 SLE features Adaptive Cruise Control, an HD Rear Vision Camera, a specialized Hitch View camera, and an In-Vehicle Trailering App to streamline hitching sequences. On-road protective assistance includes Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, and a Following Distance Indicator. Backed by LED cargo bed lighting, deep-tint rear glass, and an auto-locking rear differential, this dual-rear-wheel powerhouse delivers a remarkably safe, efficient, and highly capable towing environment. Stock #T4299263 AMVIC LICENSED DEALER