Yanmar 119578-42750 Impeller Kit for 6LY3
The Yanmar 119578-42750 is the genuine impeller kit specified for 6LY3 Series engines. It is the part number to reach for when the engine is due its seasonal cooling service.
Do the whole job while the pump is open. Look at the cam and the wear plate for scoring, check the cover face is flat, and account for every vane of the old impeller before you close it up. Anything that came off the old impeller is somewhere downstream, and the heat exchanger is where it usually stops.
Key Features
- Genuine Yanmar impeller kit
- Fits 6LY3 Series engines
- Impeller supplied with the parts renewed alongside it
- Restores raw water flow and cooling capacity
- One per pump
- Compact enough to keep aboard as a spare
Applications
- 6LY3 Series engines
- Scheduled annual or seasonal impeller service
- Restoring cooling after a high temperature alarm
- Spring commissioning and winter layup
- Recovering a pump that was run dry
- Spares kept aboard for offshore passages
Specifications
- Brand: Yanmar
- Manufacturer: Yanmar Marine
- Manufacturer Part Number: 119578-42750
- Part Type: Impeller Kit
- Fits: 6LY3 Series engines
- Quantity Used: One per pump
- Condition: New
Frequently Asked Questions
Q: Do I need to remove the pump from the engine?
Usually not. On most of these pumps the end cover and impeller are reachable in place, which is what makes it a job worth doing on schedule.
Q: What else should I check while it is open?
The cam and the wear plate for scoring, and the cover face for flatness. All three affect how much water the new impeller can actually move.
Q: The old impeller is missing a vane. Does the kit cover that?
The kit gets the pump running again, but the missing piece still has to be found. Check the heat exchanger inlet before you call the job done.
Q: Can I use it as a preventive spare rather than fitting it now?
That is exactly what it is best kept for. Store it out of sunlight and away from heat and it will be ready when it is needed.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct impeller kit.
CLRMarine
