Experience the power and luxury of the 2026 GMC Sierra 3500HD Denali Ultimate, a diesel-driven 4x4 crew cab built for demanding work and refined comfort.

This Sierra 3500HD is equipped with a Duramax 6.6L turbo-diesel V8 engine delivering an impressive 470 horsepower and 975 lb-ft of torque, perfect for heavy towing and hauling. Its 10-speed automatic transmission and locking limited-slip differential ensure smooth, confident control on any terrain. The truck rides on all-terrain tires with aluminum wheels, complemented by power retractable running boards and an integrated tailgate step for easy access.

Inside, the cabin offers premium leather seats with heating, cooling, and massage functions for front occupants, plus heated rear seats and adjustable lumbar support for driver and passenger. Memory settings for seats and mirrors add convenience, while the heads-up display and aerial view camera system enhance situational awareness. Safety features include adaptive cruise control, blind spot monitoring, lane departure warning, front collision mitigation, and automatic high beams.

Additional highlights include a sun/moonroof, remote engine start, power folding mirrors with heating, and a bed liner for durability. The Sierra 3500HD Denali Ultimate combines rugged capability with sophisticated technology, making it ideal for those who demand excellence in every drive.