Home Products Engines 6LF Series

6LF Series

6LF Series

485-550 MHP

The 6LF series is a compact yet powerful common rail diesel engine, designed for optimal performance in planing and semi-planing vessels. Ideal for both recreational boating and light-duty commercial use.

6LF models

The 6LF series comes in three different output models.

Clean

Advanced emissions control for a greener, eco-friendly operation

Interconnective

Seamless integration with modern marine digital networks

Quiet

Noise reduction technology ensures a peaceful boating experience

Powerful

High torque for superior performance

Fuel efficient

Optimized fuel consumption for longer journeys and cost savings

Compact And Powerful

The 6LF engine is a compact and powerful common rail diesel engine. Perfect for planing and semi-planing vessels, both recreational and light duty commercial. Controlled by the YANMAR VC20 system, it expands YANMAR brand’s line with higher horsepower. This addition provides the largest common rail, electronically managed marine diesel line-up in the industry.

The YANMAR 6LF meets EPA Tier 3 and EU RCD Stage 2 emissions regulations while also providing a wide range of fuel compatibility to meet requirements for various government service applications.

The 6LF has been customized with YANMAR’s proprietary fuel mapping and a larger mixing elbow for reliable and consistent output performance. It is custom engineered to offer direct connectivity to NMEA and J1939 CAN-bus networks. It comes available with a number of standard and optional features, including single- and 2-pole installation, various ZF gears, and custom secondary alternator options to meet nearly any complex application. 

Features

  • Suitable for large superyacht tenders, planing and semi-planing motor yachts up to 55ft, and light-duty commercial vessels. 
  • High power, low weight, and compact installation creating a high power density of 82 mhp/L for the 550 mhp model. 
  • Complements the largest common rail recreational and light-duty commercial diesel engine line-up. 
  • Exceeds EPA Tier 3 and EU RCD Stage 2 emissions regulations. 
6LF engine

Details

  • Available in 3 output models – 485, 530, 550 mhp 
  • A proven solution for jet and shaft drives 
  • Controlled electronically by YANMAR VC20 Vessel Control System, for 3 engines with up to 4 stations 
  • Custom YANMAR fuel mapping and mixing elbow & bracket for reliable performance output 
  • Custom YANMAR gearbox configuration to reduce vibration and increase efficiency 
  • Custom engine packaging for efficient installation 
  • Certified for recreational and light-duty commercial applications* 
  • *Please note, the 6LF550 is not EPA Commercial certified. 

Common Rail Technology

As a leading diesel engine manufacturer, YANMAR integrates the most advanced common rail technology into our innovative marine engines.

Common rail technology is a digitally controlled, high-pressure fuel injection and sensor system that optimizes engine efficiency & performance.

Powered by Yanmar 6LF series

FAQ’s about the 6LF series

To determine the appropriate 6LF series model for your needs, we advise you to consult with your local YANMAR dealer.

Please visit our Network Page to find your local distributor or dealer.

6LF series engines are designed to operate quietly, providing a comfortable experience on board. They incorporate advanced technology to minimize noise and vibration, making them suitable for vessels where a peaceful environment is important.

We advise you to consult with your local YANMAR dealer to ensure compatibility. Please visit our Network Page to find your local distributor or dealer.

YANMAR’s 6LF series engines require regular maintenance to ensure optimal performance and longevity. Following the maintenance schedule provided in the engine’s manual and consulting with your local YANMAR dealer can help keep your engine in top condition.

Please visit our Network Page to find your local distributor or dealer.

Yanmar offers extensive support through our network of dealers and service centers. You can get professional advice on installation, as well as ongoing support for any questions or issues that arise. Contact your local Yanmar dealer for personalized assistance.

Please visit our Network Page to find your local distributor or dealer.

Questions and Support

Learn more by searching our FAQs or find your local dealer or distributor from our global network. Please feel free to contact YANMAR Marine with any non-technical questions by visiting our Contact page below.

Skip to content