Put yourself in our Diesel-powered 2026 GMC Sierra 1500 SLT Crew Cab 4X4 styled in Summit White! Motivated by a TurboCharged 3.0 Liter DuraMax Diesel 6 Cylinder supplying 305hp and 495lb-ft of torque to a 10 Speed Automatic transmission complemented by a locking rear differential. Our Four Wheel Drive truck relies on that setup for serious capability and scores nearly 26mpg on the highway. Proudly poised for action, our Sierra boasts LED lighting, fog lamps, 18-inch alloy wheels, a MultiPro tailgate, perimeter lighting, bed lighting, chrome bumpers, and matching mirror caps.Our SLT cabin welcomes you with comfortable heated leather power front seats, a heated-wrapped steering wheel, dual-zone automatic climate control, remote start, keyless access, pushbutton ignition, and 12V/120V outlets. Tech lovers can enjoy the 13.4-inch touchscreen and a 12.3-inch driver display that support Google Built-in, wireless Apple CarPlay/Android Auto, Bluetooth, WiFi compatibility, and six-speaker audio.GMC helps you avoid harm's way with Professional Grade driver assistance from automatic braking, lane departure warning, forward collision warning, a rearview camera, lane-keeping assistance, pedestrian detection, tire pressure monitoring, hill-start assist, and more. Crafted to exceed expectations, our Sierra 1500 SLT is an excellent choice! Save this Page and Call for Availability. We Know You Will Enjoy Your MARKLEY MOTORS, INC. Test Drive Towards Ownership! We Value You As A Customer And Look Forward To Showing You What The MARKLEY DIFFERENCE Is All About. We've Been In Business since 1936 For A Reason! Call Us Now At MARKLEY MOTORS At 1-970-226-2213. Thank You For Taking The Time To Look At This Vehicle. We Value You As A Customer And Look Forward To Showing You What The MARKLEY DIFFERENCE Is All About. We've Been In Business since 1936 Years For A Reason! Call Us Now At MARKLEY MOTORS At 970-226-2213 To Schedule A NO HAGGLE Test Drive!