2025
GMC SIERRA 2500HD AT4 4X4 CREW CAB 6.75 FT. BOX

Drive our Diesel powered 2025 GMC Sierra 2500HD AT4 Crew Cab 4X4 in Summit White for demanding days on rugged terrain! Motivated by a TurboCharged 6.6 Litre DuraMax Diesel V8 offering 445hp and 910lb-ft of torque to a 10 Speed Allison Automatic transmission. That strength works with digital variable steering, an off-road suspension, a 2-speed transfer case, and a ProGrade Trailering system to provide our Four Wheel Drive truck with incredible capability. Our Sierra's bold design also is impressive with LED lighting, fog lamps, cargo-bed lighting, a MultiPro tailgate, alloy wheels, red recovery hooks, skid plates, and a spray-on bedliner. Our AT4 cabin doesn't compromise on comfort. Staying in control is easy with heated leather front and rear seats, a heated-wrapped steering wheel, dual-zone automatic climate control, a rear defogger, keyless access/ignition, remote start, and 12V/120V power outlets. The upscale infotainment system adds digital benefits like an 8-inch touchscreen, WiFi compatibility, wireless Android Auto/Apple CarPlay, voice recognition, Bluetooth, and six-speaker audio. Safer trucking awaits with GMC features like an HD rearview camera, hill-descent control, hitch guidance with a hitch-view camera, tire-pressure monitoring, airbags, a rear-seat reminder, and more. A force to be reckoned with, our Sierra 2500 AT4 is a fantastic choice! Save this Page and Call for Availability. We Know You Will Enjoy Your Test Drive Towards Ownership! Chevrolet Cadillac Buick GMC dealership between Barrie and Aurora. We sell new and used GM vehicles throughout our York Simcoe region.