The Volvo Penta D3-190i-B is a marine propulsion inboard diesel engine designed for robust performance and reliability. This engine, with its common rail electronic fuel injection system, delivers 190 horsepower, making it suitable for a variety of marine applications. Its engineering is focused on providing efficient power and dependable operation, essential for the demanding marine environment. The D3-190i-B represents a commitment to quality and advanced technology in marine engine design. This Full Service Repair Manual provides comprehensive guidance for the Volvo Penta D3-190i-B marine engine. It covers detailed, step-by-step repair procedures, diagnostic protocols, troubleshooting solutions, and essential technical specifications, including information on its cooling and fuel systems. The manual also includes wiring diagrams and detailed illustrations to aid in understanding and performing maintenance and repairs. This resource is designed to assist owners, mechanics, and technicians in maintaining the engine's optimal performance and longevity.