This Service Repair Manual covers the Bobcat 553 Skid Steer Loader, serial number range 520311001 and up. The Bobcat 553 is a robust skid steer loader engineered for demanding tasks. It features a hydrostatic drive system and four-wheel drive for optimal traction and maneuverability in various work environments. Its reliable construction and efficient operation make it a valuable asset for construction, landscaping, and agricultural applications. This comprehensive manual provides complete factory service information in English. It details all aspects of the machine, from safety instructions and identification to in-depth coverage of the hydraulic, hydrostatic, drive, main frame, electrical, and engine systems. With easy-to-read text, highly detailed exploded diagrams, and step-by-step instructions, this manual is an essential resource for both do-it-yourself owners and experienced mechanics. It facilitates proper maintenance, troubleshooting, and repair, ensuring the longevity and optimal performance of your Bobcat 553 Skid Steer Loader.