This manual covers the Volvo TWD1620G GH, a robust diesel engine designed for demanding applications. Known for its engineering quality and reliability, this inline 6-cylinder engine offers a substantial 16.1-liter displacement. While specific power and torque outputs are variable depending on the application, the TWD1620G GH is built to deliver consistent performance. Its liquid-cooled system and wet sump lubrication ensure efficient operation and longevity in various operational environments. This workshop service repair manual provides comprehensive information essential for the maintenance and repair of your Volvo TWD1620G GH engine. It details critical procedures, including component overhaul, scheduled maintenance intervals, and filter replacement guidelines for both fuel and oil systems. Technicians and owners will find detailed technical specifications and troubleshooting guidance to ensure optimal performance and extend the service life of the engine.