This service repair manual covers the Komatsu 3 Series wheel loaders, including models WA65-3, WA65-3 Parallel Lift, WA75-3, WA85-3, WA90-3, and WA95-3. These machines are engineered for demanding operational environments, offering robust performance and reliability. While specific production years are not detailed, coverage is provided for serial number ranges beginning with HA940051 for the WA65-3 and extending through HA980051 for the WA95-3. The manual is presented in English and is designed to support the continued efficient operation of these industrial vehicles. The purpose of this comprehensive manual is to provide detailed information for the maintenance and repair of the specified Komatsu wheel loader models. It covers essential topics such as safety protocols, general operational information, structure and function of components, testing and adjustment procedures, disassembly and assembly instructions, and an appendix for further reference. Owners, technicians, and mechanics will find the information invaluable for performing routine service, troubleshooting issues, and ensuring the longevity and optimal performance of their equipment.