New 2026 Gmc Sierra 2500 HD AT4

The 2026 GMC Sierra 2500 HD AT4 features a 6.6L Duramax Turbo-Diesel V8 engine paired with a 10-speed automatic transmission. This heavy-duty truck is equipped with premium interior features such as Jet Black with Kalahari accents, perforated front leather seat trim, and advanced technology including a 13.4" GMC Premium Infotainment System with Google built-in, wireless Apple CarPlay and Android Auto capability, and a multi-color 15" diagonal Head-Up Display. The exterior is Onyx Black, complemented by high gloss black aluminum wheels and an all-terrain blackwall tire. This Sierra 2500 HD is designed for both comfort and capability, offering features like ventilated and heated seats, dual-zone automatic climate control, and a power sunroof. It is ready for trailering and off-road adventures with its heavy-duty suspension, skid plates, and integrated trailer brake controller.