Located at Covert of Hutto, this 2018 GMC Sierra 2500HD SLT Crew Cab 4x4 pairs Onyx Black paint with Jet Black leather-appointed front bucket seats. Its 6.6L Duramax turbo diesel, Allison 1000 6-speed automatic transmission and 3.73 rear axle deliver heavy-duty capability, supported by a locking rear differential and electronic-shift transfer case. Call Covert of Hutto at to schedule your VIP appointment and test drive today.The Duramax Plus Package brings an 8-inch GMC navigation touchscreen, Bose premium audio, front and rear park assist and heated power-adjustable trailer mirrors with memory. A power sunroof, heated power front seats, driver memory, dual-zone automatic climate control and remote start add comfort and convenience.Eighteen-inch chromed aluminum wheels and six-inch rectangular chrome assist steps complement the bright SLT exterior details. The factory trailering equipment, integrated trailer brake controller and additional fifth-wheel/gooseneck wiring provisions support compatible towing setups. An exhaust brake and engine block heater add practical diesel equipment.A rearview camera, LED cargo-box lighting, EZ-Lift and Lower tailgate and rear CornerStep bumper help with daily tasks. Wireless charging, Bluetooth phone connectivity, a front center console and a folding rear bench make the cabin useful for work and travel.Family owned since 1909, Covert of Hutto proudly serves drivers from Hutto, Austin, Pflugerville, Round Rock, Georgetown, and across Central Texas. Discover quality pre-owned vehicles backed by generations of trusted service.