YANMAR 6AYM-WET Marine Diesel Engine

The YANMAR 6AYM-WET is a robust and efficient 6-cylinder, 4-stroke marine diesel engine engineered to deliver 610 kW (≈818 HP) of power at 1900 rpm, making it ideal for demanding commercial and industrial marine applications. Designed with Yanmar advanced engineering and decades of experience in marine propulsion systems, the 6AYM-WET offers exceptional reliability, durability, and fuel economy for both main propulsion and auxiliary power needs.

This engine features a turbocharged and aftercooled (TA) configuration that optimizes combustion efficiency, reduces specific fuel consumption, and minimizes emissions, helping operators achieve superior performance while maintaining compliance with modern marine environmental standards. The robust cooling and lubrication systems are engineered for continuous operation in harsh sea environments, ensuring stable temperature control and long-term component protection.

Built for versatility, the 6AYM-WET delivers smooth acceleration, consistent torque across a wide rpm range, and excellent load-handling capability. Its compact yet durable design integrates easily into a variety of vessel classes, including commercial fishing boats, workboats, coastal ferries, offshore support vessels, and tugboats.

With Yanmar global support network, operators benefit from comprehensive parts availability, technical service, and maintenance resources. The YANMAR 6AYM-WET stands out as a dependable and cost-effective marine diesel power solution, offering high performance and operational peace of mind for professionals navigating challenging marine environments.

Specifications:

• Engine Type: 6-cylinder, in-line, 4-stroke marine diesel engine

• Model: 6AYM-WET

• Rated Output: 610 kW (≈ 829 HP) @ 1900 rpm

• Displacement: 20.379 liters

• Bore × Stroke: 155 mm × 180 mm

• Aspiration: Turbocharged and intercooled (aftercooled)

• Combustion System: Direct fuel injection

• Cooling System: Freshwater cooling with heat exchanger (indirect seawater cooling)

• Lubrication System: Forced lubrication with gear-driven oil pump

• Lubricating Oil Capacity: Approx. 91 liters

• Fuel Consumption (at rated output): Approx. 207 g/kWh

• Starting System: Electric starter motor, 24V DC

• Flywheel Housing: SAE #0, 18-inch flywheel

• Dry Weight (without marine gear): Approx. 2365 kg

• Dimensions (L × W × H): Approx. 2000 × 1305 × 1431 mm

• Emission Compliance: IMO Tier II

• Direction of Rotation: Counterclockwise (viewed from stern)

• Applications: Main propulsion for commercial vessels including fishing boats, ferries, workboats, and offshore support vessels