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2025 GMC SIERRA 2500HD DENALI ULTIMATE 4WD 6.6L DURAMAX DIESEL MASSAGE SEATS 5TH WHEEL PREP SUNROOF DOWNPOUR METALLIC LANCASTER PA
This 2025 GMC Sierra 2500HD Denali Ultimate 4WD is powered by the 6.6L Duramax turbo-diesel V8 paired with a 10-speed Allison automatic transmission. Finished in stunning Downpour Metallic with an exclusive Alpine Umber full-grain leather interior, this top-of-the-line heavy-duty truck features massaging front seats, power sunroof, Gooseneck/5th Wheel Prep Package, Technology Package, and exceptionally low mileage.
The 6.6L Duramax delivers an impressive 470 horsepower and 975 lb-ft of torque, providing serious pulling power for large fifth-wheel campers, equipment trailers, and demanding workloads. Combined with four-wheel drive and the Allison 10-speed transmission, this Sierra delivers outstanding heavy-duty capability with premium refinement.
The Denali Ultimate interior is one of the biggest highlights. Exclusive Alpine Umber full-grain leather seating, heated and ventilated front seats with massage functionality, heated rear outboard seats, and a Bose Premium Series 12-speaker sound system create an exceptional luxury experience. The power sunroof and power-sliding rear window add comfort and convenience.
Technology is equally impressive with a 15-inch multicolor Head-Up Display, HD Surround Vision, Rear Camera Mirror, Bed View Camera, wireless charging, and wireless smartphone connectivity. These features make maneuvering, parking, and everyday driving easier in a full-size heavy-duty truck.
This Sierra is exceptionally well-equipped for towing. The factory Gooseneck/5th Wheel Prep Package makes it ready for compatible hitch equipment, while trailer camera provisions, advanced trailer viewing software, Trailer Side Blind Zone Alert, and trailer tire pressure monitoring sensors provide additional confidence when hauling.
The Snow Plow Prep/Camper Package adds versatility for demanding work and recreational applications. The X31 Off-Road Package, two-speed transfer case, and Hill Descent Control provide additional capability when traveling off pavement.
The Downpour Metallic exterior gives this Denali Ultimate a distinctive, upscale appearance, complemented by its signature Vader Chrome grille and smoked amber roof marker lamps. A factory spray-on bedliner with GMC logo, LED cargo lighting, rear wheelhouse liners, and 120-volt bed outlet add practical functionality.
Additional conveniences include remote start, rain-sensing wipers, Rear Cross Traffic Alert, front and rear parking sensors, and a Safety Alert Seat.
Mileage is another major advantage. The odometer is an impressive 14,073 miles below the market average, making this loaded Duramax Denali Ultimate an especially desirable find.
With its powerful 6.6L Duramax, exclusive Alpine Umber leather interior, massaging seats, sunroof, fifth-wheel prep, advanced trailering technology, and remarkably low mileage, this 2025 Sierra 2500HD Denali Ultimate offers an outstanding combination of luxury and heavy-duty performance.
See it today at Mark Martin Motors in Ephrata, serving Lancaster, Lititz, Lebanon, and York. Call or message us to check availability or schedule your test drive.