Meet the 2026 GMC Sierra 3500HD Denali Ultimate, built for those who demand serious capability and premium refinement. This powerful diesel truck arrives in striking Blue exterior and stands ready to tackle any job while delivering the comfort and technology expected of the Denali Ultimate line. With its Duramax 6.6L V8 Turbodiesel engine, 10-speed automatic transmission, and full-time 4WD, this Sierra combines commanding performance with everyday driveability.
Key features include:
- Gooseneck/5th Wheel Prep Package for serious towing applications
- ProGrade Trailering System with Hitch Guidance and Hitch View
- HD Surround Vision and Bed View Camera with dual Trailer Camera Provisions
- Dual 220-Amp Primary and 170-Amp Auxiliary Alternators for auxiliary power demands
- Bose Premium 12-Speaker Audio System with SiriusXM and wireless phone projection
- Heated and ventilated leather front seats with heated rear outboard seats
- Power sunroof, power sliding rear window, and all-weather floor liners
- Multicolor 15 Head-Up Display and 13.4 premium infotainment screen
- Advanced safety suite: Automatic Emergency Braking, Forward Collision Alert, Rear Cross Traffic Alert, and Ultrasonic Park Assist
- Upfitter Switch Kit (5) and Universal Vehicle Module for customization flexibility
This Sierra 3500HD combines genuine capability with luxury appointments. The Signature Denali Ultimate grille in Vader Chrome, spray-on bedliner, and premium interior trim reflect thoughtful design. Whether you're managing a commercial fleet, towing a gooseneck trailer, or simply enjoying the commanding presence of a heavy-duty truck, this Sierra delivers.
Visit our showroom today to experience this exceptional truck firsthand.