Sea Water Pump 128377-42500 Yanmar Johnson Pump 10-24509-01 24509-02 10-13337-01 — Australia Local Warehouse
Sea Water Pump 128377-42500 Yanmar Johnson Pump 10-24509-01 24509-02 10-13337-01 — Australia Local Warehouse
Product Overview
Sea water pump assembly part for Yanmar 2GM, 3GM and 3YM marine diesels built to European specification, supplied as one complete pump, replacing Yanmar 128377-42500 and 128397-42500, plus Johnson Pump 10-24509-01, 10-24509-02, 10-13337-01, 10-13492-01, F4B-902 and F4B-903. The pump body is 130 mm long, belt driven, and bolts on in place of the original with no modification. Dispatched from our Australia local warehouse.
Buying the whole pump rather than an impeller kit is the right call when the housing is scored, the shaft seal has been leaking sea water onto the belt, or the cover face is corroded. A worn housing will chew through new impellers and give weak flow no matter how often the rubber is changed.
The fitment note matters more than anything else on this listing. This is the European build, used in Belgium and Netherlands spec 2GM20, 3GM30 and 3YM30 engines, and it does not fit Japanese-built models. Check the engine plate before ordering and compare the old pump body shape and the hose positions.
Specifications & Attributes
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Sea water pump assembly |
| Engine | Yanmar 2GM, 3GM, 3YM European specification |
| Drive | Belt driven |
| Body Length | 130 mm / 5.1 in |
| Fitment Note | Not compatible with Japanese-built models |
| Quantity | 1 pump assembly |
| Pack Size | 130 x 100 x 110 mm / 5.1 x 3.9 x 4.3 in |
| Country of Origin | Taiwan |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| Yanmar | 128377-42500, 128397-42500 |
| Johnson Pump | 10-24509-01, 10-24509-02 |
| Johnson Pump | 10-13337-01, 10-13492-01 |
| Johnson Pump | F4B-902, F4B-903 |
Compatible Engines
| Brand | Model | Specification |
|---|---|---|
| Yanmar | 2GM20-YEU | European build |
| Yanmar | 2GM20C-YEU | European build |
| Yanmar | 3GM30-YEU | European build |
| Yanmar | 3GM30C-YEU | European build |
| Yanmar | 3YM30 | European build |
Pump Numbers Covered
| Number | Where It Appears |
|---|---|
| 128377-42500 | Yanmar sea water pump assembly |
| 128397-42500 | Yanmar sea water pump assembly |
| 10-24509-01 | Johnson Pump F4B series pump |
| 10-24509-02 | Johnson Pump reduced cam model |
| 10-13337-01, 10-13492-01 | Johnson Pump variants |
| F4B-903 | Johnson Pump full cam model |
| F4B-902 | Johnson Pump reduced cam model |
What's Included
| Component | Qty |
|---|---|
| Sea water pump assembly | 1 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Shipping from Australia
| Destination | Warehouse | Note |
|---|---|---|
| Australia | Australia local warehouse | Domestic delivery, no import duty |
| New Zealand | Australia local warehouse | Short transit, duty may apply on arrival |
Before You Buy
- Check the engine plate, this pump fits European build engines only
- Compare the old pump body and hose positions before ordering
- Check whether the old pump is the full cam or reduced cam model
- Renew the drive belt if it has been contaminated by a leaking seal
- Prime the pump and check for leaks before running the engine under load
- Keep the old impeller as a spare if it is still serviceable
- 30-Day Easy Returns
- Ships from our Australia local warehouse
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Before You Buy
Frequently Asked Questions
What is your refund policy?
We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.
See our full Refund Policy for complete details.
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