Pre-Owned 2025 GMC Sierra 2500 HD AT4 For Sale Brooklyn, CO

Conquer any job or adventure in this 2025 GMC Sierra 2500HD AT4 Crew Cab 4x4. Powered by a robust 6.6L V8 and Allison 10-speed automatic, this truck is built for serious towing and off-road performance. The AT4 Off-Road package features LT275/65R20E BF Goodrich tires, off-road tuned suspension, skid plates, and hill descent control. Enjoy premium comfort with leather-trimmed, heated and ventilated seats, a heated steering wheel, and power sunroof. Stay connected with the 13.4-inch Google Built-In infotainment, wireless Apple CarPlay/Android Auto, Bose premium sound, and Amazon Alexa compatibility. The AT4 Premium Plus and Preferred Packages add advanced safety: surround view cameras, adaptive cruise control, trailer blind spot monitoring, and rear cross traffic alert. The MultiPro tailgate, spray-on bedliner, gooseneck/5th wheel prep, and trailer brake controller make hauling easy. Loaded with tech, luxury, and rugged capability, this Sierra 2500HD AT4 is ready for work or play. Schedule your test drive today! CARFAX One-Owner Clean CARFAX CARFAX One-Owner Clean CARFAX The Vachon Family and staff bring over 75 years of Automotive excellence to Eastern CT to ensure the best car shopping and dealership experience of your life.