This manual covers the Volvo Penta DP-B / DP-B1 Sterndrive, designed for a wide range of gasoline engines. Known for their robust engineering and reliability, these sterndrives are a testament to Volvo Penta's commitment to marine propulsion excellence. The DP-B / DP-B1 series offers advanced Duoprop technology, ensuring efficient power transfer and exceptional maneuverability, making them a preferred choice for various boating applications. This comprehensive guide is intended for all generations of the DP-B / DP-B1 sterndrive, providing essential information for maintaining optimal performance. The purpose of this Factory Service Repair Manual is to provide detailed guidance for the maintenance, diagnosis, and repair of the Volvo Penta DP-B / DP-B1 Sterndrive. It includes step-by-step service procedures, advanced troubleshooting guides, essential technical data such as tightening torques, and lists of special tools. Furthermore, the manual contains detailed illustrations for parts identification, wiring diagrams for electrical systems, and specific instructions for component assembly and disassembly, including the intermediate housing, propeller shaft, and vertical shaft. Owners, mechanics, and technicians will find this manual an indispensable resource for ensuring the longevity and proper functioning of their sterndrive unit.