The product is a genuine OEM fan blade with clutch designed specifically for 1999-2006 GMC Sierra 1500 trucks with a 5.3 engine. Manufactured by ACDelco, it comes with a 1-month manufacturer warranty and features interchange part numbers such as 15017911 and 20913877. The fan blade is 19.5 inches in length, 19.2 inches in width, and weighs 2.23 pounds, making it a reliable replacement part for your vehicle's engine cooling system.