Yanmar 128990-42511 Pump Assy CSW Genuine OEM Sea Water Pump
This Yanmar 128990-42511 Pump Assy CSW is a genuine OEM sea water pump engineered to maintain reliable cooling performance in compatible Yanmar diesel engines. Designed as a direct replacement for part number 128990-42510, this pump assembly delivers dependable seawater circulation for efficient engine temperature control under demanding operating conditions.
Built to Yanmar’s original equipment specifications, the 128990-42511 pump assembly is commonly used with 2YM15, 3YM20, and 3YM30 engine applications. Its durable construction helps ensure long service life, consistent coolant flow, and dependable operation in both commercial and recreational equipment environments where engine cooling performance is critical.
Whether you are replacing a worn cooling pump or performing preventative maintenance, this genuine Yanmar pump assembly offers proper fitment, OEM reliability, and straightforward installation for supported engine models.
Key Features
- Genuine OEM Yanmar pump assembly
- Direct replacement for Yanmar part 128990-42510
- Designed for dependable seawater circulation and engine cooling
- Precision-engineered for reliable performance and fitment
- Durable construction for long-term service life
- Supports efficient cooling system operation
Applications
- Yanmar 2YM15 diesel engines
- Yanmar 3YM20 diesel engines
- Yanmar 3YM30 diesel engines
- Compatible cooling system maintenance and repair applications
- Suitable for commercial and recreational diesel engine use
Specifications
- Part Number: 128990-42511
- Product Type: Pump Assy CSW / Sea Water Pump Assembly
- Brand: Yanmar
- Replacement Part Number: 128990-42510
- Pump Type: Raw water / seawater cooling pump
- Port Size: 19 mm inlet port
- Compatible Impeller: 128990-42570
FAQs
What does the Yanmar 128990-42511 pump do?
This pump assembly circulates seawater through the engine cooling system to help regulate operating temperature and maintain efficient engine performance.
Is the Yanmar 128990-42511 an OEM part?
Yes, this is a genuine OEM Yanmar pump assembly manufactured to original factory specifications.
Which part number does the 128990-42511 replace?
The Yanmar 128990-42511 replaces older part number 128990-42510.
What engines are compatible with this pump assembly?
This pump is commonly compatible with Yanmar 2YM15, 3YM20, and 3YM30 diesel engines.
Does this pump include the impeller?
Availability may vary by supplier, so it is recommended to confirm package contents before ordering.
Why is proper seawater circulation important?
Proper seawater circulation helps prevent engine overheating, supports cooling system efficiency, and extends engine service life.
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