This workshop service repair manual provides comprehensive information for the Komatsu 108 Series Diesel Engine. Engineered for reliability and performance, this diesel engine is designed to meet demanding operational requirements. Its robust construction and efficient diesel fuel system ensure consistent power output and durability across various applications. This manual is intended to support the ongoing maintenance and repair needs of this vital piece of equipment. The purpose of this manual is to serve as an authoritative guide for owners, technicians, and mechanics. It covers essential areas including general information, engine mechanical systems, fuel, exhaust, cooling, lubrication, electrical, intake, and preheating systems. Detailed procedures for routine and preventive maintenance are outlined to help prevent premature failure and minimize unnecessary repairs. By adhering to the guidelines within this English language document, users can effectively maintain and repair their Komatsu 108 Series Diesel Engine, ensuring its optimal operational status.