Yanmar 124223-42041 Impeller Key for 2GM20F and 3GMF

Basic Info

Warranty Info

Literature

Rebate Info

Video

Brand
Yanmar

Manufacturer
Yanmar Marine

Manufacturer Part Number
124223-42041

Country of Origin
Japan

Special Order
No

Exportable
Yes

HTS Code
8413.91.9096

Truck Freight
No

Quantity In Stock
3

On Order
0

Your Price
$11.73

Qty

Yanmar 124223-42041 Impeller Key for 2GM20F and 3GMF

The Yanmar 124223-42041 is the genuine replacement impeller key for the sea water pump fitted to 2GM20F and 3GMF Series engines.

The other reason is the obvious one. The key sits loose in the shaft as soon as the impeller is withdrawn, and it lands in the bilge more often than anyone admits. A spare in the toolbox costs almost nothing and saves an otherwise finished job.

Key Features

Genuine Yanmar replacement impeller key
Fits the sea water pump fitted to 2GM20F and 3GMF Series engines
One per pump
Locks the impeller positively to the pump shaft
Replaces a corroded, rolled or lost key
Worth keeping a spare in the toolbox

Applications

the sea water pump fitted to 2GM20F and 3GMF Series engines
Impeller changes and raw water pump service
Replacing a key lost during a previous service
Repairing a loose impeller drive
Protecting the shaft keyway from further wear
Spring commissioning and layup service

Specifications

Brand: Yanmar
Manufacturer: Yanmar Marine
Manufacturer Part Number: 124223-42041
Part Type: Impeller Key
Fits: The sea water pump fitted to 2GM20F and 3GMF Series engines
Quantity Used: One per pump
Condition: New

Frequently Asked Questions

Q: Should the key stand proud of the shaft?
Only enough to engage the impeller. A key standing too high can foul the wear plate and damage it.

Q: Why do keys corrode so badly?
They sit in salt water in a steel keyway, often between dissimilar metals, which is close to ideal conditions for corrosion.

Q: Is it worth keeping spares?
Very much so. It is the cheapest part in the pump and the one most likely to be lost overboard at the worst moment.

Q: What happens if the pump runs without the key?
The shaft turns and the impeller does not, so there is no raw water flow at all and the engine overheats quickly.

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 key.

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