New 2026 GMC Sierra 2500 HD SLT For Sale Putnam, CO

Experience premium power and capability with this new 2026 GMC Sierra 2500 HD SLT Crew Cab 4WD, finished in stunning Black. Boasting the legendary Duramax 6.6L Turbo-Diesel V8 (470hp, 975 lb-ft), Allison 10-speed automatic transmission, and advanced 4X4 with X31 Off-Road Package, this truck is ready for the toughest jobs and the longest hauls. Enjoy luxury and comfort with leather heated and ventilated front seats, heated rear seats, Bose premium audio, wireless charging, and a 13.4-inch GMC Infotainment touchscreen with Bluetooth® and Wi-Fi hotspot. Stay safe and confident with HD Surround Vision, Trailer Side Blind Zone Alert, Adaptive Cruise Control, and a full suite of driver-assist features. The SLT Convenience and Premium Packages add 20-inch alloy wheels, spray-on bedliner, power sunroof, and 6" chrome steps. With the ProGrade Trailering System, gooseneck/5th wheel prep, and trailer brake controller, this Sierra is a towing powerhouse. Only 4 miles on the odometer. If you demand strength, technology, and comfort in a heavy-duty pickup, this Sierra 2500 HD SLT delivers.