Yanmar 24341-000600 O-Ring
The Yanmar 24341-000600 is the genuine replacement o-ring for Yanmar marine diesel sea water pumps that use this part. It is one of the cheapest parts in the pump and one of the few that can stop it working altogether.
Fitting is where most of them are lost. Clean the groove so nothing is trapped underneath, lift the old ring out with a plastic or brass pick rather than a screwdriver, and lubricate the new one lightly before the joint is closed. A ring nicked on a sharp edge during assembly seals well until the engine is running and then weeps, which sends people looking for a fault that is not there. Check the groove and the mating face for corrosion at the same time, because a pitted groove will not hold a new ring any better than it held the old one.
Key Features
- Genuine Yanmar replacement o-ring
- Fits Yanmar marine diesel sea water pumps that use this part
- One per pump
- Restores a positive seal at the joint
- Prevents both leaks and air being drawn in on the suction side
- Inexpensive part worth renewing whenever the joint is opened
Applications
- Yanmar marine diesel sea water pumps that use this part
- Raw water pump rebuilds and impeller changes
- Curing a leak or a weep at a pump joint
- Tracing air drawn into the suction side
- Reassembly after any joint in the pump is opened
- Spring commissioning and layup service
Specifications
- Brand: Yanmar
- Manufacturer: Yanmar Marine
- Manufacturer Part Number: 24341-000600
- Part Type: O-Ring
- Fits: Yanmar marine diesel sea water pumps that use this part
- Quantity Used: One per pump
- Condition: New
Frequently Asked Questions
Q: Does a cover O-ring differ from a port O-ring?
They seal different joints and are not interchangeable. Both are static seals, but each is sized for its own groove.
Q: Can I reuse an O-ring that looks fine?
It is a false economy. A ring compressed for a season has taken a set in its groove and no longer springs back, and it will often seal on the bench and leak once the engine is running.
Q: The pump does not leak but the flow has dropped. Could a seal be responsible?
Yes. A seal on the suction side lets air in rather than water out, so there is nothing to see while the pump quietly loses its ability to prime and pull.
Q: How do I avoid damaging the new ring?
Use a plastic or brass pick on the old one, clean the groove so nothing is trapped underneath, and lubricate the new ring lightly before closing the joint.
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 o-ring.
CLRMarine
