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Command attention on and off the road with this 2026 GMC Sierra 3500HD AT4 4WD Crew Cab Standard Box—a heavy-duty truck engineered to deliver uncompromising capability, advanced technology, and premium comfort.Built for serious work and rugged terrain, the AT4 trim brings off-road confidence with a factory-engineered suspension, skid plates, and a commanding stance. Under the hood, this Sierra is powered by a robust 6.6L V8 engine paired with a 10-speed automatic transmission, delivering impressive performance for towing, hauling, and everyday driving. With a maximum towing capacity of up to 20,000 lbs and a payload rating exceeding 4,000 lbs, this truck is ready to handle demanding jobs with ease.The Crew Cab configuration offers a spacious, refined interior with premium materials and thoughtful design throughout. Enjoy features like heated and ventilated front seats, a heated steering wheel, and dual-zone climate control, ensuring comfort in any season. The advanced 13.4-inch touchscreen infotainment system with wireless Apple CarPlay and Android Auto keeps you connected wherever the road takes you.Equipped with a Standard Box (6'10&#34;), this Sierra provides excellent versatility—offering ample cargo space while maintaining manageable overall length for daily usability.Safety and confidence come standard with a suite of advanced driver-assist features, including forward collision alert, lane departure warning, rear cross traffic alert, and multiple camera views to make towing and maneuvering easier than ever.With its bold AT4 styling, exceptional capability, and refined interior, this 2026 GMC Sierra 3500HD AT4 is the perfect combination of work-ready strength and everyday luxury.Contact us today to learn more or schedule your test drive.

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