New 2026 GMC Sierra 2500HD

Experience the power and capability of the 2026 GMC Sierra 2500HD AT4, featuring a robust Duramax 6.6L Turbo-Diesel V8 engine with 470 horsepower and an impressive 975 lb-ft of torque, perfectly suited for demanding towing and heavy-duty tasks. This crew cab pickup in Coastal Dune offers a 10-speed automatic transmission and 4x4 drivetrain, ensuring exceptional performance on and off the road.

Equipped with the Max Trailering Package, it boasts a 3500 HD frame, heavy-duty leaf springs, a 12-inch rear axle, and a shock package designed for maximum stability and durability. The spray-on bed liner and Gooseneck/5th Wheel prep provisions enhance its utility for serious haulers. The AT4 Premium Plus Package adds luxury with a power sunroof, advanced technology features, and high clearance steps for easier access.

Inside, the Sierra 2500HD AT4 offers heated and cooled leather bucket seats with power adjustments and memory settings for both driver and passenger, along with a pass-through rear bench seat. Safety is comprehensive, including automatic high beams, blind spot monitoring, lane departure warning, front collision mitigation, and a rear parking aid. Aluminum wheels, running boards, fog lamps, and integrated tailgate step complete this rugged yet refined truck, ready to tackle any challenge.