The Volvo Penta TAMD72WJ-A is a robust marine engine designed for demanding maritime applications. This in-line 6-cylinder diesel engine features turbocharging and intercooling, delivering approximately 380 horsepower at 2500 RPM. With a displacement of 7.1 liters, it is engineered for reliability and performance in a marine environment, utilizing a direct injection fuel system and indirect cooling. Its robust construction and advanced engineering make it a dependable choice for various marine propulsion needs. This service repair manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of the Volvo Penta TAMD72WJ-A marine engine. It covers essential areas including periodic lubrication, oil and filter changes, cooling system checks, fuel filter replacement, and impeller service. Detailed procedures for major engine repairs, electrical system components, and diagnostics are included, along with wiring diagrams. This manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance and longevity of their Volvo Penta marine engines.