3.0L DIESEL AT4 - 2021 GMC Sierra 1500 AT4 Crew Cab 4x4 – Titanium CertifiedIf you’re looking for a rugged, premium pickup with serious capability, this 2021 GMC Sierra 1500 AT4 Crew Cab 4x4 delivers power, technology, and off-road confidence. Finished in Summit White, this Sierra combines bold styling with the durability and refinement GMC trucks are known for.Under the hood is the highly efficient 3.0L Duramax® Turbo-Diesel I6 engine paired with a 10-speed automatic transmission and four-wheel drive. This powertrain delivers excellent torque for towing and hauling while maintaining impressive fuel efficiency for a full-size truck. The locking/limited-slip differential, off-road AT4 suspension, and all-terrain tires help this Sierra perform confidently both on and off the pavement.Inside the spacious Crew Cab, you’ll find premium comfort and technology designed for everyday driving and long trips alike. Features include heated and cooled front seats, heated steering wheel, power driver and passenger seats with lumbar support, memory seat settings, dual-zone climate control, remote engine start, and keyless entry with push-button start.Technology features include WiFi hotspot capability, satellite radio, Bluetooth® connectivity, steering wheel audio controls, back-up camera, and GMC’s advanced infotainment system to keep you connected on the road.Built for work and adventure, this Sierra also includes the Trailering Package, ProGrade Trailering System with Hitch Guidance and Hitch View, integrated tailgate step, bed liner, running boards, and 12 cargo tie-downs for maximum utility.Standout Features Include:-3.0L Duramax® Turbo-Diesel Engine-10-Speed Automatic Transmission-Four-Wheel Drive-AT4 Off-Road Package-Heated & Cooled Front Seats-Heated Steering Wheel-ProGrade Trailering System-Integrated Tailgate Step-Running Boards-Back-Up CameraTitanium Certification Includes:-2 Year / 100,000 Mile Limited Powertrain Warranty with A/C Coverage-165+ Point Quality Assurance Inspection by Factory & ASE Trained Technicians-Reconditioned to Gilchrist Automotive Dealership Network Standards-Complimentary Roadside Assistance-Complimentary CARFAX Vehicle History Report-Powertrain Warranty Honored at Most Major New Vehicle Dealerships and Service Centers-Eligible for Comprehensive Service Contract Coverage Available for PurchaseBuy with confidence at SPUR Chevrolet GMC in Gatesville! Every vehicle is fully inspected by our certified techs and comes with a detailed folder—inspection report, Carfax, and service history included. No-haggle Spur Internet Pricing means real-time market value—no guesswork, no games. We take all trades and will buy your car even if you don’t buy ours! Nationwide shipping available. Serving Gatesville, Waco, Killeen, Temple & beyond!