The Volvo Penta D3-190i-B is a robust marine engine designed for reliable performance in demanding aquatic environments. This internal combustion engine, powered by diesel fuel and featuring a turbocharged and intercooled induction system, delivers 190 horsepower. Its engineering emphasizes durability and efficiency, making it a suitable choice for a variety of marine applications where consistent power and dependable operation are paramount. This workshop service manual provides comprehensive guidance for the maintenance and repair of the Volvo Penta D3-190i-B marine engine. It covers essential areas including periodic maintenance charts, step-by-step repair instructions, troubleshooting information, overhaul procedures, and service schedules. The manual is designed to assist owners, mechanics, and technicians in effectively maintaining the engine's optimal performance and longevity, ensuring its continued reliability on the water.