2025
GMC SIERRA 3500HD DENALI 4X4 CREW CAB 6.75 FT. BOX SRW

The 2025 GMC Sierra 3500HD Denali epitomizes the fusion of robust performance and refined luxury in a heavy-duty pickup. Equipped with the formidable 6.6L Duramax Turbo-Diesel V8, this truck is engineered to handle the most demanding tasks while offering a premium driving experience.​

Powertrain & Capability

• Engine: 6.6L Duramax Turbo-Diesel V8​

• Horsepower: 470 hp​

• Torque: 975 lb-ft​

• Transmission: Allison 10-speed automatic​

• Max Towing Capacity: Up to 36,000 lbs (when properly equipped) ​

Exterior Features

• Wheels: 20" Ultra-Bright machined aluminum with bright chrome inserts​

• Grille: Denali-exclusive chrome grille​

• Lighting: LED headlamps and taillamps with signature lighting​

• Tailgate: MultiPro Tailgate with six functional configurations​

• Mirrors: Power-adjustable, heated, and power-folding with integrated turn signals​

Interior Comfort & Convenience

• Seating: Forge perforated leather-appointed seats​

• Front Seats: 12-way power-adjustable, heated and ventilated​

• Steering Wheel: Heated, leather-wrapped with audio and cruise controls​

• Climate Control: Dual-zone automatic​

• Sunroof: Available power sunroof​

Technology & Connectivity

• Infotainment: 13.4" diagonal center touchscreen with Google built-in​

• Driver Display: 12.3" diagonal digital Driver Information Center​

• Audio: Bose Premium Series with Centerpoint surround sound​

• Connectivity: Wireless Apple CarPlay and Android Auto compatibility​

• Charging: Wireless charging pad

Advanced Safety & Driver Assistance

• Camera Views: Up to 14 available, including Transparent Trailer View​

• Cruise Control: Adaptive Cruise Control with trailering​

• Alerts: Forward Collision Alert, Lane Departure Warning, Rear Cross Traffic Alert​

• Braking: Automatic Emergency Braking​

• Monitoring: Blind Spot Monitoring with Trailer Side Blind Zone Alert​

Utility & Versatility

• Bed: Durable cargo bed with LED lighting​

• Power Outlets: 120V outlet in the bed for tools and equipment​

• Trailering: Integrated trailer brake controller and hitch guidance with hitch view​

The 2025 GMC Sierra 3500HD Denali stands as a testament to GMC's commitment to power, luxury, and innovation. Whether you're towing heavy loads or seeking a comfortable ride, this truck delivers on all fronts.