Yanmar Diesel Power Boat Engines
YANMAR powerboat engines deliver outstanding power, speed, efficiency, and reliability. Our engines have proven to be the ideal solution for multiple applications, commercial and recreational, given a customizable options range - available for shaft, stern, and jet drives, with SOLAS and semi 2-pole option, high power primary and secondary alternators, purpose-built plug & play interconnectivity to any NMEA or J1939 device, and more. YANMAR engines deliver 5x Best in Class product features with the added benefit of the best global support network in the marine industry.
YANMAR also manufactures previous models which are no longer compliant with current EPA emissions standards. These engines can be used for direct replacement of existing YANMAR engines. A list of those engines is available, contact Boatswains Locker for additional information.
| Model | Horsepower | RPM | Weight (lb) | Rating | Tier |
| 4LV150 | 150 | 3500 | 732 | Recreational / Commercial | US Tier 3 |
| 4LV170 | 170 | 3500 | 732 | Recreational / Commercial | US Tier 3 |
| 4LV195 | 195 | 3500 | 732 | Recreational / Commercial | US Tier 3 |
| 4LV230 | 230 | 3800 | 732 | Recreational / Commercial | US Tier 3 |
| 4LV250 | 250 | 3800 | 732 | Recreational | US Tier 3 |
| 8LV320 | 320 | 3800 | 959 | Recreational / Commercial | US Tier 3 |
| 8LV350 | 350 | 3800 | 959 | Recreational / Commercial | US Tier 3 |
| 8LV370 | 370 | 3800 | 959 | Recreational | US Tier 3 |
| 6LY400 | 400 | 3300 | 1290 | Recreational / Commercial | US Tier 3 |
| 6LY440 | 440 | 3300 | 1290 | Recreational / Commercial | US Tier 3 |
| 6LF485 | 485 | 3000 | 1720 | Recreational / Commercial | US Tier 3 |
| 6LF530 | 530 | 3000 | 1720 | Recreational / Commercial | US Tier 3 |
| 6LF550 | 550 | 3000 | 1720 | Recreational | US Tier 3 |
| 6LT500 | 500 | 2530 | 2073 | Recreational / Commercial | US Tier 3 |
| 6LT580 | 580 | 2530 | 2073 | Recreational / Commercial | US Tier 3 |
| 6LT640 | 640 | 2530 | 2073 | Recreational / Commercial | US Tier 3 |
For additional information including pricing and availability,
please contact our Engine department.
(866) 954-2676 or (949) 642-6800
Looking to repower? Download our Yanmar repower guide.
Yanmar Marine Diesel Engine Maintenance Schedules
Daily and periodic inspections are important to help keep your engine in top operating condition. Select your engine series below to view the maintenance schedule.
Inspection intervals may vary depending on operating conditions, fuel, oil, and usage. Always refer to your engine owner’s manual for complete maintenance requirements.
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