The TAMD71B is a robust marine diesel engine designed for demanding maritime applications. Featuring an in-line 6-cylinder configuration with a displacement of 5.48 liters, this engine incorporates direct injection, turbocharging, and aftercooling for efficient power delivery. With a power output ranging from approximately 285-300 horsepower and torque output between 800-850 Nm, the TAMD71B is engineered for reliability and performance in marine environments. Its robust construction and advanced fuel system ensure dependable operation, making it a trusted choice for various marine vessels. This service and repair manual provides comprehensive guidance for the maintenance and repair of the TAMD71B marine engine. It covers essential topics including general maintenance, troubleshooting, engine and transmission service, cooling and fuel systems, electrical systems, and wiring diagrams. Detailed procedures, technical specifications, and safety guidelines are included to assist owners, mechanics, and technicians in keeping the engine in optimal condition. The manual is presented in English.