=== POWERFUL, LUXURIOUS, HEAVY-DUTY, GENUINE MAX TOWING CAPABILITY! === Denali sits at the very top of the Sierra 2500HD lineup, and this Crew Cab example takes it further still with the Duramax diesel and a genuine Max Trailering setup. Finished in Summit White, this Sierra HD pairs serious towing muscle with the kind of chrome-accented, leather-lined luxury that sets Denali apart from every other 2500HD trim. === Why Shoppers Buy This Model === The Sierra HD built its reputation on delivering genuine three-quarter-ton capability without sacrificing the comfort and refinement Denali buyers expect. The all-new 2024 Duramax engine architecture brought a completely redesigned combustion system with higher-flow injectors and greater fuel injection pressure, delivering meaningfully improved towing power over the outgoing generation. With this configuration's Max Trailering Package and gooseneck/5th-wheel prep, this Sierra HD is capable of best-in-class Crew Cab towing figures that put it ahead of its direct rivals. === Warranty === Registered new on April 12, 2024, this Sierra 2500HD shows 33,433 miles today and is STILL COVERED under GMC's factory protection, giving its next owner real, transferable coverage on the vehicle's most important systems. Remaining Transferable Factory Coverage * Duramax Diesel Powertrain Limited Warranty -- covers the engine, transmission, and drivetrain components. Expiration: April 12, 2029, or 100,000 miles, whichever comes first. * Rust-Through Protection -- covers perforation due to corrosion on body panels. Expiration: April 12, 2030, or 100,000 miles, whichever comes first. * Roadside Assistance (Diesel) -- 24-hour towing, jump-starts, and lockout assistance. Expiration: April 12, 2029, or 100,000 miles, whichever comes first. * Basic Limited Warranty -- covers most other vehicle components and systems. Expiration: April 12, 2027, or 36,000 miles, whichever comes first (approximately 2,600 miles of coverage remain under the mileage limit). Ask about our available extended service plans to keep this Sierra 2500HD protected well beyond its factory coverage. To the best of our abilities, we believe the following warranties are still intact and not negated by GM's anti-flip rule, but you're welcome to check with an authorized GMC dealership. === Standard Features === Denali sits at the top of the Sierra HD lineup, and it shows in the details: heated and ventilated leather front seats, a chrome Denali grille, and 20-inch ultra-bright machined alloy wheels all come standard here, well beyond what the mainstream SLE and SLT trims offer. HD Surround Vision, a Bose premium sound system, and remote vehicle starter round out a cabin built for buyers who want genuine near-luxury refinement in a heavy-duty truck. === Installed Options === On top of Denali's already strong standard equipment, this Sierra 2500HD was further outfitted with genuine factory-installed content built for serious towing. === Denali Reserve Package === * Technology Package, including a Rear Camera Mirror and a multicolor 15-inch diagonal Head-Up Display * Power sunroof, bringing real light into the cabin === Max Trailering Package === * 12-inch rear axle, HD frame, HD leaf springs, and an HD shock package, meaningfully strengthening this truck's towing foundation * Hitch platform with tray to accept a ball, plus drilled box holes with caps installed * Box-mounted 7-pin trailer harness === Standalone Features === * Gooseneck/5th Wheel Prep Package, with a hitch platform tray to accept a ball, stamped bed holes with removable caps installed, and a bed-mounted 7-pin trailer harness * Engine block heater, making cold-weather starts easier * 220-amp alternator, providing extra electrical capacity for trailer and accessory demands * Roof marker lamps with smoked amber lenses, adding a distinctive touch and improved trailer-towing visibility === Truck Capability === This is a ge
