Used 2025 GMC Sierra 3500HD

Experience the power and capability of the 2025 GMC Sierra 3500HD AT4 Crew Cab, designed for demanding work and rugged adventures in Onyx Black.

This diesel-powered 8-cylinder truck features a robust turbocharged engine paired with an Allison 10-speed automatic transmission and 4x4 drivetrain, delivering exceptional towing and hauling performance. The Sierra 3500HD AT4 is equipped with a locking limited-slip differential, tow hooks, and a tow hitch, making it ready for heavy-duty tasks. Its crew cab configuration comfortably seats five with leather bucket seats that include heating and cooling functions, power adjustments, lumbar support, and memory settings for both driver and passenger. Rear passengers enjoy heated seating and a pass-through rear seat for added convenience.

Safety is paramount with advanced features such as blind spot monitoring, cross-traffic alert, lane departure warning, front collision mitigation and warning, automatic high beams, and a comprehensive airbag system. The truck also includes stability and traction control to maintain confidence on any terrain.

Additional highlights include LED headlights, fog lamps, heated and power-folding mirrors with memory, running boards, an integrated tailgate step, bed liner, and aluminum wheels. Inside, enjoy adaptive cruise control, an aerial view display system, a premium sound system, Bluetooth connectivity, remote engine start, and a back-up camera to enhance every drive.