2025
GMC SIERRA 3500HD DENALI 4X4 CREW CAB 8 FT. BOX SRW

The 2025 GMC Sierra 3500HD Denali Dually Long Box is a heavy-duty pickup truck that combines exceptional towing capabilities, premium comfort, and advanced technology. Equipped with the 6.6L Duramax Turbo-Diesel V8 engine and dual rear wheels, this truck is designed for those who demand both power and luxury.

Performance & Capability:

• 6.6L Duramax Turbo-Diesel V8 engine delivering 470 horsepower and 975 lb-ft of torque, paired with an Allison® 10-speed automatic transmission

• Dual rear wheels (dually) for enhanced stability and increased payload capacity

• Maximum towing capacity of up to 30,700 lbs, making it ideal for heavy-duty hauling

• Advanced trailering technologies, including an integrated trailer brake controller and available auxiliary trailer camera

• Heavy-duty suspension system designed to handle the toughest jobs with ease

Denali Luxury & Interior Features:

• Denali-exclusive interior featuring authentic open-pore wood, patterned aluminum trim, and forge perforated leather seating surfaces

• 12-way power-adjustable front seats with heating and ventilation for personalized comfort

• Bose Premium Sound System providing an immersive audio experience

• Dual-zone automatic climate control for individualized temperature settings

• Spacious crew cab offering ample legroom and storage solutions for all passengers

• Heated steering wheel

• Heated rear outboard seats

Exterior Design & Utility:

• Signature Denali chrome grille and 18-inch Ultra-Bright machined aluminum wheels with bright chrome inserts

• Long box configuration providing maximum cargo space for larger loads

• Power-adjustable vertical trailering mirrors with integrated turn signals for improved visibility

• EZ Lift and Lower tailgate with power lock and release for convenient access to the cargo bed

• Spray-on bedliner protecting the bed from wear and corrosion

Technology & Connectivity:

• GMC Infotainment System with a large touchscreen display, offering navigation, Apple CarPlay, and Android Auto compatibility

• Wireless charging pad for convenient device charging

• Multiple USB ports and Wi-Fi hotspot capability (subscription required) to keep you connected on the go

• Rear Camera Mirror providing a wider and less obstructed view behind the vehicle

Advanced Safety & Driver Assistance:

• Forward Collision Alert with Automatic Emergency Braking to help prevent potential collisions

• Lane Departure Warning

• Front and Rear Park Assist aiding in maneuvering in tight spaces

• HD Surround Vision Camera offering a comprehensive view around the vehicle for enhanced safety

The 2025 GMC Sierra 3500HD Denali Dually Long Box with the 6.6L Duramax Turbo-Diesel engine is the epitome of strength and sophistication. Whether you're towing heavy loads or seeking a luxurious driving experience, this truck delivers on all fronts, making it a top choice for those who require uncompromising performance and premium features.