2025 GMC Sierra 2500HD SLT — One Owner, 31,528 Miles — Duramax Diesel, Built to Tow and Work Powerful capability meets premium comfort in this one-owner 2025 GMC Sierra 2500HD SLT finished in Gray with Jet Black leather. Driven just 31,528 miles and loaded with towing, safety and convenience features, it’s ready for heavy-duty work or comfortable long hauls. Key highlights - Duramax 6.6L Turbo-Diesel V8 (B20-compatible) paired with Allison 10-speed automatic for confident low-end torque and towing performance. - Max Trailering & Towing/Camper packages plus gooseneck/5th-wheel prep — ready for big trailers and campers. - Trailer-focused tech: Trailer Camera provisions and viewing software, Trailer Side Blind Zone Alert, Trailer Brake and wiring prep. - Advanced safety suite: GMC Pro Safety Plus (HD Surround Vision, Front/Rear Park Assist, Rear Cross Traffic Alert, Adaptive Cruise Control, Safety Alert Seat). - Off-road and protection: X31 Off-Road Pkg with skid plates and hill descent control; black molded splash guards; smoked amber roof markers. - Bed-ready: Spray-on bedliner, Bed View camera in CHMSL for cargo visibility, bed step and durable exterior protection. - Premium comfort: Leather interior, heated and ventilated front seats, heated second-row outboard seats, floor-mounted center console, fixed chromed tubular assist steps, universal home remote, wireless charging and dual charge/data USB ports. - Premium audio and infotainment: 13.4" premium GMC infotainment with Google built-in apps (navigation, voice assistance) and Bose 7-speaker system with Richbass woofer. - Work-ready electrical: 220-amp alternator, engine block heater, high-idle switch, and (5) upfitter switches for custom electronics. This Sierra 2500HD blends commercial-grade capability with SLT-level refinement — ideal for contractors, heavy haulers, and anyone who demands towing strength plus modern comfort. Contact us to schedule a viewing or test drive.