Water Pump Impeller for Yamaha 20A, 20B & 25A 2-Stroke Outboards – OEM Reference 6G0-44352-00
Water Pump Impeller for Yamaha 20A, 20B & 25A 2-Stroke Outboards – OEM Reference 6G0-44352-00 is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller for Yamaha 20A, 20B & 25A 2-Stroke Outboard...
Water Pump Impeller for Yamaha 20A, 20B & 25A 2-Stroke Outboards – OEM Reference 6G0-44352-00 is backordered and will ship as soon as it is back in stock.
Product Details
This is an aftermarket water pump impeller for Yamaha 20A, 20B and 25A 2-stroke outboard engines. It is intended for the water pump assembly and corresponds to Yamaha OEM reference 6G0-44352-00.
The company catalog identifies this product as a single 2-stroke water pump impeller, not a kit. Confirm the complete engine model and serial-number requirements before ordering, especially when model-year configurations differ.
- Replacement impeller for the outboard water pump assembly.
- Designed for the Yamaha 20A, 20B and 25A model groups listed below.
- Aftermarket replacement part; Yamaha is referenced for compatibility and part-number identification only.
Part Number Reference
Use the following OEM reference when comparing your existing impeller and service-manual requirements.
| Brand | OEM Reference |
|---|---|
| Yamaha | 6G0-44352-00 |
Engine & Model Compatibility
The company fitment record lists the following Yamaha 2-stroke outboard model groups. Verify the exact model designation, year and serial number against your service manual before installation.
| Brand | Model | Rated HP | Stroke | OEM Reference | Fitment Notes |
|---|---|---|---|---|---|
| Yamaha | 20A | 20 HP | 2-Stroke | 6G0-44352-00 | Confirm exact model and serial number |
| Yamaha | 20B | 20 HP | 2-Stroke | 6G0-44352-00 | Confirm exact model and serial number |
| Yamaha | 25A | 25 HP | 2-Stroke | 6G0-44352-00 | Confirm exact model and serial number |
Technical Information
- Product Type
- Water pump impeller
- Application
- Yamaha 2-stroke outboard water pump assembly
- Listed Model Groups
- 20A, 20B and 25A
- OEM Reference
- 6G0-44352-00
- Product Configuration
- Single impeller
What’s in the Box
- 1 x Water Pump Impeller
Note: The company catalog identifies this listing as a single impeller. A drive key, gasket, wear plate or other water-pump components are not specified as included. Reuse or purchase any additional installation components required by your engine service procedure.
Installation Notes
- Disconnect the engine battery or ignition system as appropriate and follow the manufacturer’s service-manual safety procedure.
- Remove the lower unit according to the instructions for your specific Yamaha outboard.
- Open the water pump housing and remove the old impeller.
- Inspect the pump housing, wear plate, drive key and related components for wear or damage.
- Install the replacement impeller using the correct key and any required gaskets or seals for your engine.
- Reassemble the water pump and lower unit in accordance with the service manual.
- Run the engine in a suitable test environment and confirm normal cooling-water flow before returning it to service.
Installation should be performed by a qualified marine technician when the correct service procedure or component configuration is uncertain.
Troubleshooting & FAQ
Which Yamaha engines is this impeller listed for?
The company fitment record lists Yamaha 20A, 20B and 25A 2-stroke outboard model groups. Check the complete model designation and serial number against your service manual before ordering.
What OEM reference should I compare?
Compare your existing part and service-manual requirements with Yamaha OEM reference 6G0-44352-00.
Is this a complete water pump kit?
No. This listing is for one water pump impeller. Additional components such as a drive key, gasket, housing or wear plate are not specified as included.
Is a drive key included?
A drive key is not specified as included in the company package information. Check your existing key and obtain a replacement if it is worn, damaged or missing.
Can this impeller be used on a 4-stroke engine?
The listed application is for Yamaha 2-stroke model groups 20A, 20B and 25A. Do not use it on another engine unless the manufacturer’s parts information confirms the same impeller requirement.
What are common signs of an impeller problem?
Reduced cooling-water flow, overheating, or visible cracking and wear can indicate an impeller or related water-pump problem. Inspect the complete cooling system and follow the applicable service manual.
How often should the impeller be replaced?
Replacement intervals depend on the engine manufacturer’s maintenance schedule and operating conditions. Inspect the impeller during scheduled water-pump service and replace it when worn, damaged or otherwise required by the service manual.
Is this an OEM Yamaha part?
No. This is an aftermarket replacement impeller. Yamaha and the OEM reference are used to identify the intended application and comparison part number.
Safety & Important Information
- Verify the complete engine model, year and serial number before purchase.
- Compare the original impeller and the OEM reference with the information in your service manual.
- This listing is for one impeller only; additional water-pump components are not specified as included.
- Do not operate the engine without an adequate water supply and proper cooling-system test procedure.
- Professional installation is recommended when lower-unit removal or water-pump service is unfamiliar.
About Sea Sierra
- Marine Replacement Parts — We provide aftermarket components for common marine maintenance and repair applications.
- Application-Focused Listings — Product pages identify the listed engine groups and reference numbers to support fitment checks.
- Customer Support — Contact support with your complete engine model and serial information when you need help confirming an application.
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