The Volvo Penta D3-190A-B is an inline 5-cylinder diesel marine engine designed for reliable performance on the water. Featuring a 2.4-liter displacement and a robust turbocharged and intercooled system, this engine delivers a powerful 190 horsepower. Its common rail direct injection fuel system and closed freshwater cooling system are engineered for efficiency and longevity, making it a dependable choice for various marine applications. This Factory Service Repair Manual provides comprehensive guidance for the Volvo Penta D3-190A-B. It covers essential maintenance procedures, detailed troubleshooting steps, and critical technical specifications necessary for proper upkeep and repair. The manual is designed to assist owners, technicians, and mechanics in maintaining the engine's optimal performance, ensuring its reliability and extending its operational life.