Mid-Range Power in YANMAR’s 6LT Series
The YANMAR 6LT580 is an 8.710 L marine diesel rated at 426 kW / 580 mhp at 2530 rpm, the middle of the 6LT series, which covers 500 to 640 mhp. The 6LT is YANMAR’s compact, light-weight diesel engine at the top of its common rail range, offering up to 640 mhp for planing and semi-planing hulls, fast boats and inboard propulsion systems, in recreational and light-duty commercial use. YANMAR built the series around five things: clean, interconnective, quiet, powerful and fuel efficient.
Powerful and fuel efficient. YANMAR’s proprietary fuel mapping and a larger mixing elbow deliver reliable, consistent output performance, with a power density of up to 74 mhp per liter on the 640 mhp model.
Clean and quiet. The 6LT580 meets EPA Tier 3 and EU RCD Stage 2 emissions regulations and provides a wide range of fuel compatibility to meet requirements for various government service applications, with significantly reduced noise levels.
Interconnective. Direct connectivity to NMEA and J1939 CAN-bus networks gives smooth integration with any multi-function bridge display. The 6LT580 is controlled electronically by YANMAR’s next-generation VC20 vessel control system, for up to three engines with four stations, and is available with the JC20A joystick for twin shaft-drive installations. It is offered for shaft drive with ZF305-3 or ZF305-3A gears, with single- or 2-pole electrical installation and secondary alternator options for complex applications.
- Powerful: 426 kW / 580 mhp at 2530 rpm, with proprietary fuel mapping and a larger mixing elbow for reliable output
- Fuel efficient: optimized fuel consumption for longer journeys and cost savings
- Clean: meets EPA Tier 3 and EU RCD Stage 2, wide fuel compatibility
- Quiet: significantly reduced noise levels
- Interconnective: VC20 vessel control system for up to three engines with four stations; JC20A joystick for twin shaft drive
- Shaft drive with ZF gears, 1125 kg / 2480 lb dry weight without gear
