Off-Road Authority: 2025 GMC Sierra 1500 AT4 3.0L Duramax Turbo-Diesel AT4 Premium & Tech Pkgs Sterling Metallic Dominating the trail and the highway alike this One-Owner Clean CARFAX 2025 GMC Sierra 1500 AT4 is the ultimate expression of Professional Grade adventure. Dressed in the sharp Sterling Metallic this truck features the highly efficient and torque-heavy 3.0L Duramax Inline-Six Turbo-Diesel. With a factory 2-inch lift and a suite of advanced towing and luxury technologies its built for those who demand a truck that works as hard as it plays. The Duramax Diesel Advantage The 3.0L Duramax engine is widely considered the gold standard for half-ton pickups offering a unique combination of massive torque and class-leading fuel economy: Exceptional Efficiency: This 4WD AT4 is capable of achieving an impressive EPA-estimated 27-29 MPG on the highway allowing you to travel further between fill-ups on long treks to Killeen or Temple. Low-End Torque: With 495 lb-ft of torque available at just 1500 RPM you have immediate power for crawling over obstacles or merging into heavy Austin traffic. Towing Prowess: Equipped with the Trailering Package Hitch Guidance with Hitch View and an integrated trailer brake controller this Sierra makes towing a boat or horse trailer feel effortless. Off-Road Ready: Features a 2-inch factory lift Rancho monotube shocks an auto-locking rear differential and red recovery hooks to handle the toughest Central Texas terrain. Advanced Technology & Premium Packages This AT4 is loaded with the Technology and AT4 Premium Packages turning the rugged interior into a high-tech command center: Heads-Up Display: The 15 diagonal multicolor Head-Up Display projects vital info like speed and navigation directly onto the windshield so your eyes never leave the road. HD Surround Vision: Provides a 360-degree birds-eye view including a Bed View Camera making it easy to navigate tight parking spots in Round Rock or align your hitch perfectly. Rear Camera Mirror: Switch your rearview mirror to a high-def camera feed for an unobstructed view of whats behind you even if the cab is full of gear. Bose Premium Audio: A 7-speaker system provides a rich immersive sound experience perfectly paired with wireless Apple CarPlay and Android Auto. Unrivaled Interior Luxury Inside the AT4 youll find a cabin that rivals luxury SUVs while maintaining its rugged utility: Climate-Controlled Seating: Enjoy Heated and Ventilated (Cooled) Front Seats and heated 2nd-row outboard seats ensuring all-season comfort for you and your crew. Smart Storage: Features a floor-mounted center console with Wireless Charging and rear under-seat storage to keep your cabin organized and clutter-free. Power & Convenience: Includes a Power Sunroof power rake/telescoping steering column and 120-volt outlets in both the interior and the bed for powering tools or camping gear. Join the Covert Family in Hutto At Covert Ford Chevrolet Hutto we have been a cornerstone of the Central Texas community for over 115 years. We pride ourselves on a transparent no-pressure buying experience. Whether youre coming from Pflugerville Georgetown or Cedar Park we invite you to see why the Covert Way is the best way to buy your next truck. We are just a short drive from: Austin 78758 Round Rock 78665 Georgetown 78626 Pflugerville 78660 and Liberty Hill 78642. The 2025 AT4 with the Duramax diesel is one of our most sought-after trucks. Contact us today to schedule your private showing and test drive!