2025 GMC Sierra 3500HD Denali Ultimate

This is what happens when GMC’s most luxurious heavy-duty truck gets the custom lifted stance it deserves. This 2025 GMC Sierra 3500HD Denali Ultimate Crew Cab 4x4 is finished in Onyx Black with matching body-color details, gloss black accents, dark aluminum trim, and the aggressive presence buyers expect from a lifted Duramax. Inside, the Denali Ultimate-exclusive Alpine Umber leather interior makes it clear that this is far more than an ordinary work truck. The professionally installed 2.5-inch full suspension kit gives this Sierra the perfect height without taking away from its clean Ultimate styling. Brand-new Hostile Titan wheels and brand-new 37x12.50R20 Nitto Ridge Grappler all-terrain tires complete the build, giving it a wide, aggressive stance that looks right from every angle. Power-retractable assist steps with LED perimeter lighting make entry easier while keeping the sides clean when they are folded away. Under the hood is the impressive 6.6-liter Duramax turbo-diesel V8 paired with the smooth Allison 10-speed automatic transmission. A 3.42 rear axle, automatic locking rear differential, two-speed electronic AutoTrac transfer case, digital variable steering, and 12,100-pound GVWR package give this Sierra the strength needed for serious work. The factory trailering package includes an integrated trailer brake controller, Hitch Guidance, Hitch View, trailer sway control, Hill Start Assist, and an in-vehicle Trailering App. The Denali Ultimate interior is where this truck separates itself from other heavy-duty pickups. It features heated and ventilated 16-way power front seats, heated second-row outboard seats, driver-seat and mirror memory, adaptive cruise control, a heated leather-wrapped steering wheel, dual-zone climate control, wireless charging, and a power sliding rear window. The Alpine Umber leather, detailed stitching, and premium materials give the cabin a first-class look and feel. Technology includes a 13.4-inch GMC Premium Infotainment touchscreen with Google built-in, navigation capability, wireless Apple CarPlay, wireless Android Auto, and Bluetooth. A 12.3-inch reconfigurable driver display, 15-inch multicolor head-up display, Rear Camera Mirror, Bed View Camera, HD Surround Vision, and Bose 12-speaker premium audio keep you informed and connected. Additional features include 120-volt outlets in the cabin and bed, Universal Home Remote, SiriusXM capability, and OnStar services. Safety equipment includes Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, Following Distance Indicator, IntelliBeam automatic high beams, Safety Alert Seat, Front and Rear Park Assist, Rear Cross Traffic Alert, and Trailer Side Blind Zone Alert. Outside, it adds animated LED projector headlights, LED fog lights, power-folding and extending heated tow mirrors, rain-sensing wipers, spray-on bedliner, LED bed lighting, and the GMC MultiPro tailgate. Come see this lifted 2025 GMC Sierra 3500HD Denali Ultimate Duramax today at Unique Trucks in Scottsdale, Arizona, and take it for a test drive. We specialize in lifted trucks, diesel trucks, and premium custom builds, and we are a one-of-a-kind Scottsdale dealership where the price you see is the price you pay—everything is included with no additional markups. If you cannot make it in, call and let us work out the best deal over the phone. We can deliver this Denali Ultimate directly to your doorstep with no obligation, giving you the chance to see it, touch it, and experience it from the comfort of your home.