Experience commanding power and advanced technology with the 2026 GMC Sierra 2500HD AT4 Crew Cab 4WD in striking Onyx Black, built for heavy-duty performance and rugged capability.

This Sierra 2500HD is powered by a Duramax 6.6L Turbo-Diesel V8 engine, delivering an impressive 470 horsepower and 975 lb-ft of torque, paired with a 10-speed automatic transmission and a locking limited-slip differential for superior traction. The 4x4 drivetrain ensures confident handling on any terrain, while the integrated tailgate step and bed liner enhance utility and convenience for demanding work or recreational tasks.

Inside, the crew cab offers premium comfort with leather bucket seats featuring heating and cooling functions, power adjustments, lumbar support, and seat memory for both driver and passenger. Rear passengers enjoy heated seating and a pass-through rear seat for added practicality. The cabin is equipped with multi-zone climate control, an adaptive aerial view display system, and a premium sound system with Bluetooth connectivity, satellite radio, and steering wheel audio controls for an engaging driving experience.

Safety is paramount with features like automatic high beams, blind spot monitoring, lane departure warning, front collision mitigation, cross-traffic alert, and a comprehensive airbag system. Additional convenience comes from keyless entry and start, remote engine start, power folding heated mirrors with integrated turn signals, running boards, and tow hooks, making this truck ready for any challenge.