This manual covers the Yanmar 3TNV84, 3TNV84T, and 3TNV88 series of internal combustion diesel engines. These 3-cylinder engines are engineered for reliability and performance, designed for applications requiring robust power and efficiency. Their robust construction and advanced diesel technology ensure dependable operation across a wide range of demanding tasks.

This Service Repair Manual provides comprehensive guidance for the maintenance and repair of your Yanmar engine. It details essential procedures, technical specifications, and troubleshooting steps necessary to keep your engine in optimal condition. Owners, mechanics, and technicians will find the information within this manual invaluable for performing routine service, addressing issues, and ensuring the longevity of their Yanmar engines.