10-Speed Automatic, 4WD, Alpine Umber Leather. Summit White 2026 GMC Sierra 3500HD 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel *MSRP is the Manufacturers Suggested Retail Price, and is not the dealers advertised or asking price. See dealer for pricing details. MSRP excludes government fees and taxes, any finance charges, any dealer document processing charge, any electronic filing charge, any emission testing charge, insurance, and optional equipment, products, packages and accessories selected by the customer. All advertised vehicles are subject to actual dealer availability. Must qualify for all applicable rebates. Prices include all dealer rebates and dealer incentives. Images displayed may not be representative of the actual trim level of a vehicle, and colors shown are the most accurate representations available. All vehicles are one of each, and all offers expire at close of business on the day the offer is removed from this website. All financing is subject to credit approval. While great effort is made to ensure the accuracy of the information on this website, errors do occur so please verify information with one of our dealership representatives. Bluetooth® is a registered mark of Bluetooth® SIG, Inc. Android Auto® is a trademark of Google LLC. Apple CarPlay® is a registered trademark of Apple Inc. The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.