Please contact our Internet Sales Team at 970-282-68382021 GMC Sierra 3500 AT4 - Where Raw Power Meets Refined Adventure!Mileage: With 80,000 miles of experience, this Sierra is seasoned but far from tired. It's primed and ready for countless more adventures on and off the road.Maintenance Marvel: Every mile, every turn, every journey has been backed by meticulous care. Its pristine service history is a testament to the dedication it's received, ensuring it's always in peak form.Transparent Tale: Yes, there was a minor bump in its journey, but nothing this Sierra couldn't handle with grace. Fully disclosed and expertly repaired, it stands tall, ready to face any challenge.Certified Confidence: Rest easy knowing our certified technicians have combed over every inch of this beast, giving it their seal of approval. It's not just road-ready; it's adventure-ready.AT4 Badge of Honor: The AT4 isn't just a trim; it's a statement. Designed for those who tread the path less traveled, it promises both off-road mastery and on-road elegance.6.6L Duramax Turbodiesel Dominance: At its heart lies the legendary 6.6-liter Duramax turbodiesel engine. Renowned for its raw power, impressive torque, and unmatched durability, it ensures that whether you're towing, hauling, or simply cruising, you're doing it with unparalleled strength.Heavy-Duty Hero: The Sierra 3500 AT4 isn't just about looks; it's about performance. With its impressive towing and payload capacities, it's the trusted companion for any heavy-duty task.In Summary: The 2021 GMC Sierra 3500 AT4 is the epitome of what a modern truck should be. Combining the brute force of the 6.6L Duramax turbodiesel engine with the luxury and capability of the AT4 trim, it's a truck for those who demand the best of both worlds. Dive into an experience where power meets luxury; book your test drive today!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. USED VEHICLES MAY BE SUBJECT TO UNREPAIRED MANUFACTURER RECALLS. PLEASE CONTACT THE MANUFACTURER OR DEALER FOR THAT LINE MAKE FOR RECALL ASSISTANCE/QUESTIONS OR CHECK THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION WEBSITE FOR CURRENT RECALL INFORMATION BEFORE PURCHASING.. Or visit us at www.markleymotors.com