2026 GMC Sierra 2500

Engineered to conquer the toughest terrain, the 2026 GMC Sierra 2500HD AT4 is a true off-road champion. Equipped with a powerful Duramax 6.6L V8 Turbodiesel engine, this heavy-duty pickup delivers an unmatched blend of capability and performance. - 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible) (Includes (K05) Engine Block Heater) (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) - 10-Speed Automatic Transmission - 4-Wheel Drive Designed for adventure, the Sierra 2500HD AT4 is equipped with an impressive array of off-road features, including the X31 Off-Road Package, Hill Descent Control, and Off-Road High Clearance Steps. Elevate your driving experience with the Preferred Equipment Group 4SB, Technology Package, and AT4 Premium Plus Package, which add premium audio, advanced safety technologies, and luxurious interior appointments. The Sierra 2500HD AT4 also boasts a wealth of convenience and connectivity features, such as Wireless Charging, Apple CarPlay/Android Auto, and a Multicolor 15 Diagonal Head-Up Display. Stay informed and entertained on every journey with the Premium GMC Infotainment System and Bose Premium 7-Speaker Sound System. Designed for both work and play, the Sierra 2500HD AT4 offers unparalleled capability, comfort, and style. Experience the difference with a test drive today. Why buy from Greg Lair GMC? It's a great question with an even better answer! We've been a local fixture in the Panhandle for over 40 years, putting customers from Amarillo and the Panhandle first every single day. We set ourselves apart as the home of the FREE Lifetime Powertrain Warranty on all inventory under 100,000 miles. From our hassle-free buying process to our thorough multi-point inspections by Certified GM Technicians, we make sure your next vehicle is safe, reliable, and ready for the road. Stop by today and see the Greg Lair difference for yourself!.