* ENGINE DURAMAX 6.6L TURBO-DIESEL V8 * * TRANSMISSION 10-SPEED AUTOMATIC * * AT4 PREMIUM PLUS PACKAGE * This 2026 GMC Sierra 3500HD AT4 is a powerhouse of performance and luxury, designed for those who demand the best. The turbocharged diesel V8 engine delivers an impressive 470 horsepower and 975 lb-ft of torque, providing the muscle needed for any heavy-duty task. The 10-speed automatic transmission ensures smooth and efficient power delivery, making every drive in the Sierra 3500HD an exhilarating experience. The AT4 Premium Plus Package elevates this truck to a new level of sophistication and capability. With features like a power sunroof, off-road high clearance steps, and a suite of advanced technology, you’ll enjoy both ruggedness and refinement. The truck is also equipped with a Gooseneck/5th Wheel Prep Package, making it ready for any towing needs. Whether navigating city streets or heading off the beaten path, the Sierra 3500HD AT4 offers a wide range of features to keep you safe and comfortable, including adaptive cruise control, a premium sound system, and an advanced navigation system. Experience the perfect blend of power, technology, and luxury in Cochrane. Why Choose Cochrane GM for Your New Vehicle? - Access to the Latest GM Models - Flexible Financing & Leasing Solutions - Top Trade-In Value for Your Current Vehicle - Knowledgeable Vehicle Specialists to Assist You - Proudly Serving the Cochrane Community - Visit us at 2 Westside Drive, Cochrane - Call us at[Phone Removed] to book your test drive today! DisplayTrim: ENGINE DURAMAX 6.6L TURBO-DIESEL V8 * TRANSMISSION 10-SPEED AUTOMATIC * AT4 PREMIUM PLUS PACKAGE