The 2026 GMC Sierra 2500HD AT4 is a true powerhouse, engineered to conquer any challenge that lies ahead. With its Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this 4WD pickup delivers uncompromising performance and capability.- Apple CarPlay & Android Auto- AT4 Premium Plus Package- Bedliner- Blind Spot Monitoring- Bluetooth- Cruise Control- Gooseneck/5th Wheel Prep Package- Heated & Cooled Seats- Heated Steering Wheel- Hitch Package- Leather Seats- Multi Zone Climate Control- Parking Sensors- Remote Keyless Entry- Remote Start- SiriusXM Ready- Sunroof / Moonroof- Surround View Camera- Technology Package- Touchscreen Radio- Wireless Phone Charging- X31 Off-Road Package- Bose Premium 7-Speaker Sound SystemDesigned to excel both on and off the beaten path, this Sierra 2500HD AT4 is packed with premium features and capabilities that will elevate your driving experience. From the advanced Duramax diesel engine to the comprehensive suite of technology and convenience amenities, this truck is ready to tackle any job or adventure with confidence.Dealer's Purchase Price includes a $699.00 dealer administrative fee and dealer-installed accessories but excludes governmental fees such as tax, tag/title, and electronic titling fees. Pricing for Commercial inventory may not include Customized Commercial Bodies or Upfits. Dealer's Purchase Price expires at the end of each business day. Ready to take the next step Visit us at www.ParksBuickGMC.com or call today to get your questions answered, request a custom quote, or book your test drive. Parks Buick GMC in Greenville proudly serves drivers across South Carolina with a wide selection of new Buick & GMC models, commercial trucks, and quality pre-owned vehicles. Stop by 2640 Laurens Rd, Greenville, SC 29607 - we're here to help you find your next vehicle. Price includes: $1000 - Purchase Allowance. Exp. 06/30/2026 Price includes $698 of dealer added accessories.