Description
The Yamaha 61A-44311-01-00 Water Pump Housing is a genuine-fit replacement component designed for Yamaha outboard lower units. This housing forms the upper portion of the water pump assembly and is critical for maintaining proper engine cooling and water flow.
A worn or damaged water pump housing can lead to overheating, reduced cooling efficiency, and potential engine damage. Replacing the housing during routine impeller service helps ensure reliable cooling performance and long engine life.
This part fits a wide range of Yamaha 2-stroke outboards from 115HP to 250HP manufactured between 1990-1996.
Key Features
- Direct replacement for Yamaha Part Number 61A-44311-01-00
- Maintains proper cooling water flow
- Ideal for water pump rebuild or maintenance
- Durable marine-grade construction
- OEM fit and performance
- Used in Lower Unit Water Pump Assembly
Common Symptoms of a Worn Water Pump Housing
- Weak tell-tale water stream
- Engine overheating
- Reduced cooling water pressure
- Impeller wear or uneven wear patterns
Replacing the housing during impeller service is strongly recommended for optimal performance.


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