New 2026 GMC Sierra 2500HD SLT 4WD

The 2026 GMC Sierra 2500HD SLT is a truck that's built to conquer any challenge you throw its way. With its powerful Duramax 6.6L V8 Turbodiesel engine, this Sierra delivers an impressive 470 horsepower and an incredible 975 lb-ft of torque, giving you the strength and capability to tackle even the toughest jobs.

- 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)
- 6 Speakers
- Bose Premium 7-Speaker Sound System
- Premium audio system: Premium GMC Infotainment System
- Heated / Cooled Leather Seats
- Adaptive Cruise Control
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Spray-on Pickup Bedliner with GMC Logo
- Gooseneck/5th Wheel Prep Package
- Hitch Package
- Sierra HD Pro Safety Plus Package
- SLT Convenience Package
- SLT Preferred Package
- Suspension Package
- Texas SLT Premium Package

But this Sierra 2500HD SLT is more than just a powerful workhorse. It's also packed with premium features that will make your driving experience more comfortable and convenient. The heated and cooled leather seats, premium Bose audio system, and advanced safety technologies like Adaptive Cruise Control and Lane Departure Warning System ensure that you'll enjoy every mile, whether you're hauling a heavy load or just cruising down the highway.

And with the Gooseneck/5th Wheel Prep Package, Hitch Package, and other towing-focused features, this Sierra is ready to handle all your heavy-duty hauling needs. Whether you're towing a trailer, a camper, or a boat, this truck has the strength and capability to get the job done.

But don't just take our word for it. Come in and see the 2026 GMC Sierra 2500HD SLT for yourself. Schedule a test drive and experience the power, comfort, and convenience that this truck has to offer. We're confident that once you get behind the wheel, you'll be convinced that this is the perfect truck for you.

"Why buy from Greg Lair GMC?" you may ask...Greg Lair GMC is locally owned and operated and has been serving customers in the Amarillo, Lubbock, Clovis and surrounding panhandle and Tri-State area for over 30 years! You are our first priority! Greg Lair is home of the FREE LIFETIME POWERTRAIN WARRANTY for vehicles in our inventory with less than 100k miles on them at time of sale for your peace of mind! Our sales and service staff are friendly and knowledgeable and ready to provide you with a hassle free purchasing experience! At Greg Lair GMC all of our vehicles undergo a thorough multi-point vehicle inspection by certified GM Technicians to ensure that your next vehicle meets or exceeds industry performance and safety standards! Call or come by today for your very own personalized demonstration of the finest vehicles on the road today!