Ultra-smooth LY3 Series engines, lightest in their class, incorporate sophisticated electronic control to ensure constant power, almost regardless of operating conditions. They are turbocharged, intercooled and waste-gated six-cylinder power plants, with a wide choice of marine gear. Yanmar has become the benchmark for power-to-weight superiority and the tough, direct-injection LY3 Series extends the innovative technology to push performance still further.

• New electronic control system
• Efficient four-valve head
• More power from less weight
• CAN-BUS network on NMEA 2000 open protocol

Standard Engine Package System

• CANBUS-NMEA 2000 electronic control system
• Ignition panel with rocker switches
• Multi-Function LCD display
• Alternator 12 V - 80 A
• Exhaust elbow (L-type)
• Air heater
• Electronic control head

Optional Engine Package System

• Fuel / water separator
• Remote oil filter opposite side
• Exhaust elbow, U-type (high riser)
• Airvent for coolant tank
• Lub oil evacuation pump
• Flexible mounts
• Extension wire harnesses
• Second station kit for flybridge
• Various control heads
• Ignition panel with keyswitch
• Trolling mode kit

Engine Type: 24 valve, 4-stroke, vertical, water cooled diesel
Displacement: 5.813 L (354 cu in)
Bore x Stroke: 106 mm x 110 mm (4.17 in x 4.33 in)
Prop Shaft Horsepower: 279 kW (380 mhp) / 3300 rpm
Cylinder Heads: 6 in line
Fuel/Induction System: Direct injection
Fuel: Diesel
Starting System: Electrical starting 12V - 3kW
Lubrication: Enclosed, forced lubricating
Weight: 640 kg (1411 lbs)