Discover the unparalleled capability and premium refinement of the 2026 GMC Sierra 3500HD Denali. This exceptional heavy-duty pickup delivers the power and performance you demand, combined with the comfort and convenience you deserve.- Heavy Duty Front Spring/Camper Package- Duramax 6.6L V8 Turbodiesel engine with 10-Speed Automatic transmission and 4WD- Denali Reserve Package including Technology Package and power sunroof- 1-year MobileService for select services at your locationHEAVY DUTY FRONT SPRING/CAMPER PACKAGENote: If ordered for Camper usage, recommend ordering (UY2) Trailering wiring provisionsOnyx BlackBlackENGINE BLOCK HEATERALTERNATOR, 220 AMPS6.6L V8 Diesel Turbocharged (Duramax) (470 hp 350.5 kW @ 2800 rpm, 975 lb-ft of torque 1322 Nm @ 1600 rpm) (Includes (K05) engine block heater.)DENALI RESERVE PACKAGEIncludes Technology Package and power sunroofMOBILE SERVICE PLUS.MobileService is a suite of service conveniences for 1 year - Mobile Service, Pick-up & Delivery, and Loaner with Drop off. MobileService van will come to your home to perform select services or pick up your vehicle and return it once the service is completed at the dealership. Cost of part and labor are not includedHIGH IDLE SWITCHGOOSENECK / 5TH WHEEL PREP PACKAGE-- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness .The Sierra 3500HD Denali is engineered to tackle the toughest jobs with confidence. Its Duramax 6.6L V8 Turbodiesel engine delivers an impressive 470 horsepower and 975 lb-ft of torque, providing the muscle you need to haul heavy loads or tow your largest toys. The 10-speed automatic transmission and 4WD system ensure seamless power delivery and exceptional control in any driving condition.Beyond its uncompromising capability, the Sierra 3500HD Denali surrounds you in premium comfort and convenience. The Denali Reserve Package includes a power sunroof, advanced technology features, and the MobileService program for select services at your location. Luxurious Forge perforated leather seating, heated and ventilated front seats, and a heated steering wheel elevate every journey.The Sierra 3500HD Denali is built to work hard and play hard. Its rugged yet refined design, robust powertrain, and comprehensive suite of premium amenities make it the ultimate heavy-duty pickup. Experience the uncompromising capability and unparalleled luxury of this remarkable vehicle.This 2026 GMC Sierra 3500HD Denali is a true masterpiece of engineering and craftsmanship. With its exceptional performance, advanced technology, and premium appointments, it's the ultimate heavy-duty pickup for those who demand the best. Visit our showroom today to experience the power and prestige of the Sierra 3500HD Denali. Customer must finance with General motors in certain cases to Qualify for all available incentives: $2000 - Buick GMC Bonus Cash. Exp. 06/30/2026