New 2026 GMC Sierra 3500HD Pro For Sale Old Saybrook, CT

For sale: New 2026 GMC Sierra 3500 HD Chassis Pro, White, 4WD Regular Cab with a 171" wheelbase and 84.5" CA. Powered by a robust 6.6L V8 engine (401hp, 464 lb-ft), paired to an Allison 10-speed automatic transmission and dual rear wheels for superior hauling capability. Includes Snow Plow Prep Package, heavy-duty front springs, skid plates, and a trailer brake controller—ready for any job or upfit. Enjoy advanced safety with Sierra HD Pro Safety: Forward Collision Alert, Lane Departure Warning, Front Pedestrian Braking, and IntelliBeam automatic high beams. Stay connected with GMC Infotainment System, Bluetooth®, wireless phone projection, and Wi-Fi hotspot capability. Convenience features include power windows, power door locks, remote keyless entry, cruise control, and a split-bench cloth seat with power driver's lumbar support. Additional highlights: deep-tinted glass, rear-window defogger, manual extendable trailer mirrors, dual alternators, 17" steel wheels, and LT235/80R17E all-terrain tires. Covered by GMC’s comprehensive factory warranties. Built to work hard, drive safe, and keep you connected—this Sierra 3500 HD Chassis is the ultimate choice for commercial or fleet needs.