This workshop service manual provides comprehensive information for the Volvo Penta 290-DP sterndrive, a component of the DP Series Sterndrive generation. Designed for various marine applications, these sterndrives are known for their robust engineering and reliable performance, featuring Duoprop technology for enhanced maneuverability and efficiency. The manual covers a range of model years and is intended to support the operation and upkeep of these versatile marine propulsion systems. The purpose of this manual is to serve as a definitive guide for maintaining and repairing the Volvo Penta 290-DP sterndrive. It details essential maintenance procedures, including routine service tasks, lubrication requirements for both the engine and drive unit, and recommended fluid types and capacities. Furthermore, the manual offers in-depth troubleshooting guidance, diagnostic procedures, and technical specifications, including wiring diagrams for electrical systems. This resource is invaluable for owners, technicians, and mechanics seeking to ensure the optimal performance and longevity of their Volvo Penta sterndrive.