GMC Sierra 2500Hd 2025

Under the hood sits GMC’s high-output 6.6L Duramax Turbo-Diesel V8 engine, unleashing a massive 470 horsepower and a relentless 975 lb-ft of low-end torque. It skips underpowered gas alternatives, pairing heavy-duty diesel grunt with a proven Allison 10-speed automatic transmission calibrated for effortless towing and maximum torque delivery right off the line. Built on a high-strength heavy-duty steel frame with a factory 2-inch suspension lift, Rancho twin-tube shocks, and skid plates, it conquers rugged trail obstacles, heavy payloads, and massive trailer pulls with complete ease. Equipped with an Autotrac 2-speed transfer case with automatic 4WD and an Eaton G80 heavy-duty locking rear differential, it dynamically channels power across deep Muskoka snowbanks, icy morning launches, and unplowed cottage roads. * 6.6L Duramax Turbo-Diesel V8: High-output engine generating 470 hp and 975 lb-ft of torque for confident passing power and serious heavy-duty towing capacity. * Allison 10-Speed Automatic: Legendary multi-gear transmission designed to optimize tow/haul shift points, engine braking efficiency, and highway range. * Factory AT4 Off-Road Suspension: Engineered with a 2-inch factory suspension lift, off-road Rancho shocks, heavy-duty skid plates, and red front recovery hooks. * Autotrac 2-Speed 4x4 & G80 Locker: Features Auto 4WD, 4-High, 4-Low, and an Eaton G80 automatic locking rear differential to lock down unyielding winter traction. * Executive AT4 Cabin Luxuries: Premium Jet Black leather seating with Kalahari accent stitching, multi-stage heated and ventilated (cooled) front seats, heated rear seats, and a heated steering wheel. * Modern Widescreen Digital Cockpit: Features a 13.4-inch central touchscreen with Google Built-In navigation, wireless Apple CarPlay, wireless Android Auto, and a 12.3-inch digital driver information display. * MultiPro™ 6-Function Tailgate: World’s first 6-position GMC MultiPro™ tailgate with integrated bed side steps, 120V bed outlet, and durable spray-on bedliner. * GMC Pro Safety & Towing Tech: Outfitted with HD Surround Vision, Bed View Camera, Trailer Side Blind Zone Alert, Adaptive Cruise Control, and Automatic Emergency Braking.We offer flexible financing and lease solutions for all credit types. Use our APPLY NOW button to check your approval today, or call Drive Credit Canada for assistance. Every listing includes a Carfax report—just ask!