2025 GMC Sierra 2500HD Denali Ultimate

Luxury, Duramax power and a properly built 37-inch stance come together in this clean, one-owner 2025 GMC Sierra 2500HD Denali Ultimate Crew Cab 4x4. The fully color-matched Onyx Black exterior, body-color wheel arches and premium Denali details give this heavy-duty GMC a sleek, upscale appearance. Inside, the Alpine Umber leather cabin delivers the level of craftsmanship and comfort that makes the Denali Ultimate one of the most desirable trucks in its class. This lifted GMC has been upgraded with a brand-new, professionally installed 3-inch Rough Country upper-control-arm suspension kit and M1 monotube shocks. Brand-new 20x9 Hostile Crawler H138 wheels are wrapped in massive 37x12.50R20LT E-rated Nitto Ridge Grappler tires, giving the truck an aggressive but well-balanced stance. The finished combination looks clean, proportional and ready to turn heads everywhere it goes. Power comes from the proven 6.6-liter Duramax turbo-diesel V8, paired with the smooth Allison 10-speed automatic transmission. The Max Trailering Package adds serious heavy-duty hardware, including a 3500HD frame, upgraded leaf springs, a 12-inch rear axle, a heavy-duty shock package and gooseneck/fifth-wheel provisions. A 3.42 rear axle, dual alternators, heavy-duty front springs and the Camper Package further prepare this Sierra for demanding towing and hauling. The two-speed Autotrac transfer case and automatic-locking rear differential provide confident traction, while Digital Variable Steering Assist helps make this full-size truck easier to control. An integrated trailer-brake controller, Trailer Sway Control, Hill Start Assist and the in-vehicle trailering app help simplify towing. Trailer Side Blind Zone Alert, a bed-view camera, HD Surround Vision and power-folding, extending and heated trailer mirrors provide excellent visibility around the truck and trailer. The Alpine Umber cabin features 16-way power front bucket seats, ventilated front seats, heated front and rear outboard seats, driver-seat and mirror memory, and a leather-wrapped steering wheel. The 60/40 folding rear bench includes built-in storage, while wireless charging, remote start, keyless open and start, premium floor liners and a power-sliding rear window add everyday convenience. Power assist steps make it easy to enter and exit the lifted cabin. Technology includes GMC’s 13.4-inch Premium Infotainment System with Google built-in compatibility, navigation capability, Bluetooth, wireless Apple CarPlay and wireless Android Auto. A 12.3-inch digital Driver Information Center and Bose Premium Series 12-speaker audio system complete the premium experience. Safety features include Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, Following Distance Indicator, IntelliBeam, Rear Cross-Traffic Alert, front and rear parking assistance and the Safety Alert Seat. The MultiPro Tailgate, spray-on bedliner, LED cargo lighting, animated LED projector headlights, roof-marker lamps and chrome recovery hooks finish off this loaded Denali Ultimate. Unique Trucks is located in Scottsdale, Arizona, specializing in lifted trucks, diesel trucks and hard-to-find heavy-duty 4x4 models. We are a one-of-a-kind dealership where the price you see is the price you pay—everything is included with no additional markups. Come see this one-owner lifted Denali Ultimate and take it for a test drive, or call us to make your best deal over the phone. Ask about our no-obligation delivery service and we can bring it directly to your doorstep so you can see it, touch it and experience it from the comfort of your home. If you do not like it, you do not buy it—it is that simple.