Yanmar 6N18 engine block

The Yanmar 6N18 engine block is a strong cast iron structure that forms the main body of the engine, supporting components like the crankshaft and cylinder liners. It uses a duplex (double-wall) design with built-in passages for cooling water, lubricating oil, and air, ensuring efficient performance, durability, and reliability in marine operations.

Key Features

• Heavy-duty cast iron construction for high strength and long life
• Duplex (double-wall) design for rigidity and reduced vibration
• Integrated cooling water jackets for effective heat dissipation
• Built-in lubrication oil galleries for smooth operation
• Boost air passages to support turbocharging
• Precision main bearing housing for proper crankshaft alignment
• Replaceable cylinder liner arrangement for easy maintenance
• Side covers and access doors for inspection and servicing