This manual pertains to the Volvo Penta DP-A, DP-B, and DP-C series sterndrive units. These robust drive systems are engineered for reliability and performance, representing a significant investment in marine propulsion. While specific production years are not detailed, the manual covers a range of models within these series, ensuring comprehensive support for owners and technicians. The Duoprop configuration, characteristic of the DP designation, is a key feature contributing to enhanced maneuverability and efficiency. The purpose of this comprehensive Service Repair Manual is to provide detailed guidance for the maintenance, repair, and troubleshooting of your Volvo Penta sterndrive. It covers a wide array of systems, including engine-related components, fuel and cooling systems, drivetrain, steering, brakes, electrical systems, and body/interior elements. With included wiring diagrams, maintenance checklists, charts, and safety guidelines, this manual is an indispensable resource for ensuring the longevity and optimal performance of your marine propulsion system.