Yanmar 6LF485 Inboard Diesel Engine

Introducing the New Yanmar 6LF485 Inboard Diesel Engine—a compact, high-performance solution tailored for planing and semi-planing vessels in both recreational and light-duty commercial sectors. This engine exemplifies Yanmar’s commitment to innovation, delivering exceptional power density and efficiency.

Key Features:

• Optimal Power Density: The 6LF485 offers a remarkable power density of 82 mhp/L, ensuring robust performance without compromising on size or weight.
• Advanced Electronic Control: Managed by the Yanmar VC20 Vessel Control System, the engine provides precise control and seamless integration with modern marine technologies.
• Environmental Compliance: Surpassing EPA Tier 3 and EU RCD Stage 2 emission standards, the 6LF485 ensures eco-friendly operation with reduced emissions.
• Versatile Fuel Compatibility: Designed to accommodate a wide range of fuel types, it meets diverse requirements for various governmental and commercial applications.

Specifications:

• Rated Output: 356 kW / 485 mhp
• Rated Speed: 3000 rpm
• Displacement: 6.728 L / 411 cu. in
• Number of Cylinders: 6
• Cylinder Bore x Stroke: 104 mm x 132 mm / 4.10 in x 5.20 in
• Configuration: In-line, 4-stroke, vertical, water-cooled diesel engine
• Combustion System: Direct Injection, Bosch Common Rail System
• Aspiration: Turbocharged & Intercooled
• Alternator: 12V – 90A, 24V – 70A
• Dry Weight (without gear): 780 kg / 1720 lbs
• Dimensions (L x W x H): 1519 mm x 893 mm x 881 mm
• Controls: Electronic
• Certifications: RCD 2, IMO Tier 2, EPA Tier 3, EPA Tier 3C, EMC

Standard Engine Package:

• Exhaust mixing elbow (high riser)
• 12V Electric system (single pole) / 24V Electric system (2-pole)
• Flexible mounts
• Alternator 12V – 90A / 24V – 70A
• VC20 Vessel Control System
• Electronic CAN-bus control head
• Backup Panel
• Manual lubrication oil evacuation pump

Optional Accessories:

• Secondary alternator 24V – 110A with smart regulator
• Secondary alternator 12V – 125A or 24V – 65A (2-pole)
• Additional stations
• Front-PTO connection
• Hot water connector
• NMEA 2000 Engine monitoring system
• JC20A Inboard Joystick
• Extension harnesses (3m, 5m, 10m)
• Man Overboard Switch

Frequently Asked Questions:

1. What types of vessels are suitable for the Yanmar 6LF485 engine?
   • The 6LF485 is ideal for large superyacht tenders, planing and semi-planing motor yachts up to 55 feet, and light-duty commercial vessels.
2. How does the VC20 Vessel Control System enhance engine performance?
   • The VC20 system offers precise electronic control, improving throttle response and integration with modern marine electronics for enhanced operational efficiency.
3. What are the benefits of the engine’s common rail fuel system?
   • The Bosch Common Rail System ensures optimal combustion, leading to improved fuel efficiency, reduced emissions, and lower noise levels.
4. Is the Yanmar 6LF485 compliant with international emission standards?
   • Yes, it exceeds EPA Tier 3 and EU RCD Stage 2 emission regulations, ensuring environmentally friendly operation.
5. What optional accessories are available to customize the engine?
   • Optional accessories include secondary alternators, additional control stations, front-PTO connections, hot water connectors, NMEA 2000 monitoring systems, and the JC20A Inboard Joystick, among others.

For more detailed information, refer to the Yanmar 6LF485 Inboard Diesel Engine Specifications.

By choosing the Yanmar 6LF485, you’re investing in a reliable, efficient, and environmentally conscious power solution for your marine vessel.