This Parts Manual covers the Bobcat 863 and 863G Skid Steer Loaders, specifically for serial numbers 5144 40001 & Above, 5145 40001 & Above, and 5146 40001 & Above. These G Series models are engineered for robust performance and versatility in various applications, featuring a hydrostatic drive system with four-wheel drive and zero-radius turning capabilities. The design emphasizes reliability and efficient operation, making them suitable for demanding work environments. The manual details components of the main frame, axle assembly, and lift arms, as well as the engine and hydrostatic transmission systems. This comprehensive English Parts Manual provides detailed diagrams and part numbers to assist in identifying and ordering components for your Bobcat 863 / 863G skid steer loader. It covers a wide range of systems, including the engine, transmission, chassis, controls, cab, and attachments. Essential maintenance items such as air cleaners, filters, belts, and fluid capacities are also addressed. The manual is fully searchable and printable, offering a valuable resource for owners, technicians, and mechanics to ensure proper maintenance, repair, and upkeep of the equipment.