This manual pertains to the Iseki TH4260, TH4290, and TH4330 compact tractors. These robust machines, built by Iseki & Co., Ltd., a Japanese manufacturer with a long heritage in agricultural machinery, are designed for a wide array of tasks including farming, landscaping, and property maintenance. Known for their reliability and engineering quality, these tractors offer practical performance, typically featuring diesel engines with horsepower ratings in the mid-20s to mid-30s, liquid-cooled systems, and often hydrostatic transmissions. Their design prioritizes functionality, with essential operator controls and mechanical systems engineered for durability and ease of use. The purpose of this comprehensive Parts Catalog & Repair Manual is to provide detailed information for the identification, maintenance, repair, and restoration of your Iseki tractor. It covers all tractor parts with detailed illustrations, diagrams, and numbered tables of contents for easy navigation. Included are step-by-step repair procedures, maintenance guidelines, and information for rebuilds and refurbishments across all major systems, including the engine, drivetrain, hydraulic system, electrical components, chassis, operator station, PTO, and hitch. This manual is an indispensable resource for owner-operators, farm mechanics, repair shops, and enthusiasts seeking to maintain their equipment efficiently and effectively.