This manual pertains to the Bobcat 553 BF Series Skid Steer Loader, covering serial numbers 520411001 and above. The BF Series is engineered for robust performance and reliability, designed to meet the demanding needs of various work environments. Its hydrostatic transmission and 4-wheel drive system provide exceptional maneuverability and power, making it a versatile tool for construction, landscaping, and agricultural applications. This comprehensive Parts Manual provides detailed information essential for identifying and ordering replacement components for your Bobcat 553 BF Series Skid Steer Loader. It covers a wide array of systems including the air filter, transmission, brakes, cooling system, engine, exhaust, steering, and suspension, among others. The manual is presented in English and is designed to assist owners and technicians in maintaining the operational integrity and longevity of the equipment, ensuring that technical data remains accurate and consistent with original manufacturer specifications.