New 2026 GMC Sierra 2500HD AT4 For Sale Palmdale, CA

The 2026 GMC Sierra 2500HD AT4 in Black delivers exceptional capability wrapped in premium craftsmanship. This crew cab crew truck combines the legendary Duramax 6.6L V8 Turbodiesel engine with a 10-speed automatic transmission and full 4WD capability for unmatched performance and control. Inside, Jet Black leather with Kalahari accents creates an upscale cabin environment, while the AT4 Preferred Package and MAX Trailering Package ensure you're equipped for any job or adventure.- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission- MAX Trailering Package for enhanced hauling and towing capability- Power sunroof with premium materials and AT4 exclusive styling- Engine block heater and 220-amp alternator for dependable cold-start performance- Jet Black leather interior with Kalahari accents and heated front and rear seats- Bose premium 7-speaker sound system with SiriusXM 360L trial subscription- Advanced safety suite including automatic emergency braking and surround vision cameras- Black sport step, off-road suspension, and hill descent control for rugged performance- 20-inch high-gloss black aluminum wheels and spray-on bedliner- HD surround vision with trailer camera provisions and hitch guidanceThis Sierra 2500HD AT4 stands ready to work hard while delivering the refinement and technology today's truck buyers expect. Visit us to experience the commanding presence, capability, and luxury that define GMC's flagship heavy-duty truck. Three years of SiriusXM satellite radio and comprehensive OnStar connectivity come standard to keep you connected wherever the road takes you.Total Price includes $85 document processing charge, $37 electronic filing charge, and $50 emissions testing charge (if applicable) (not governmental fees)