2020 GMC SIERRA 2500HD AT4 CREW CAB STANDARD BOX CERTIFIED AS-TRADED, ONE OWNER, 231K KM, BLACK EXTERIOR, BLACK LEATHER INTERIOR, 6.6L DURAMAX TURBO-DIESEL V8, 4X4, POWER SUNROOF, POWER FRONT SEATS, AT4 OFF-ROAD PACKAGE, ALLISON AUTOMATIC TRANSMISSION, HEATED FRONT SEATS, HEATED STEERING WHEEL, REMOTE START, APPLE CARPLAY, ANDROID AUTO, HD REAR VISION CAMERA, HEADS UP DISPLAY, BOSE AUDIO, TRAILERING EQUIPMENT, SPRAY-IN BEDLINER, CREW CAB, STANDARD BOX, 5-PASSENGER SEATING AND MORE! This Certified As-Traded, one-owner 2020 GMC Sierra 2500HD AT4 Crew Cab Standard Box delivers impressive heavy-duty capability with the renowned 6.6L Duramax Turbo-Diesel V8 paired to an Allison automatic transmission for confident towing, hauling, and highway performance. The AT4 package adds off-road confidence with a rugged 4x4 system and distinctive styling, making it equally capable on job sites and weekend adventures. Inside, the black leather cabin offers a premium feel with power front seats, a power sunroof, heated seating, a heated steering wheel, and modern connectivity through Apple CarPlay and Android Auto. Practical features such as remote start, a rear vision camera, and trailering equipment enhance everyday convenience and capability. Whether you're searching for a used 2020 GMC Sierra 2500HD for sale in Ontario, a diesel pickup for demanding workloads, or a capable AWD-style 4x4 truck with premium comfort, this AT4 offers exceptional versatility and proven GMC durability.
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