Water Pump Impeller for Yamaha F6A, F8B, F8C, F8F, F9.9F & F9.9J 4-Stroke Outboards – Replaces 68T-44352-00-00
Water Pump Impeller for Yamaha F6A, F8B, F8C, F8F, F9.9F & F9.9J 4-Stroke Outboards – Replaces 68T-44352-00-00 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Water Pump Impeller for Yamaha F6A, F8B, F8C, F8F, F9.9F & F9.9...
Water Pump Impeller for Yamaha F6A, F8B, F8C, F8F, F9.9F & F9.9J 4-Stroke Outboards – Replaces 68T-44352-00-00 is backordered and will ship as soon as it is back in stock.
Product Details
This water pump impeller is an aftermarket replacement for specified Yamaha 4-stroke outboard engines. It is listed for Yamaha F6A, F8B, F8C, F8F, F9.9F and F9.9J models.
The impeller replaces Yamaha OEM reference 68T-44352-00-00. Listed aftermarket reference numbers include Sierra Marine 18-8910 and Mallory Marine 9-45614.
- Replacement water pump impeller for selected Yamaha outboards.
- Designed for the engine models listed in the compatibility section.
- Sold as one impeller only.
Part Number Matrix
Use the following references to compare the impeller with your existing part and service information.
| Brand or Reference | Part Number |
|---|---|
| Yamaha OEM reference | 68T-44352-00-00 |
| Sierra Marine aftermarket reference | 18-8910 |
| Mallory Marine aftermarket reference | 9-45614 |
Engine & Model Compatibility
Compatibility is based on the specific model designations listed by the product source. Confirm the complete model designation and compare the original impeller before ordering.
| Brand | Model | Rated HP | Stroke | OEM Reference | Notes |
|---|---|---|---|---|---|
| Yamaha | F6A | 6 HP | 4-Stroke | 68T-44352-00-00 | Verify the complete model designation. |
| Yamaha | F8B | 8 HP | 4-Stroke | 68T-44352-00-00 | Verify the complete model designation. |
| Yamaha | F8C | 8 HP | 4-Stroke | 68T-44352-00-00 | Verify the complete model designation. |
| Yamaha | F8F | 8 HP | 4-Stroke | 68T-44352-00-00 | Verify the complete model designation. |
| Yamaha | F9.9F | 9.9 HP | 4-Stroke | 68T-44352-00-00 | Verify the complete model designation. |
| Yamaha | F9.9J | 9.9 HP | 4-Stroke | 68T-44352-00-00 | Verify the complete model designation. |
Technical Specs
- Product Type
- Water pump impeller
- Application
- Yamaha 4-stroke outboard engines
- Compatible Models
- F6A, F8B, F8C, F8F, F9.9F and F9.9J
- OEM Reference
- 68T-44352-00-00
- Sierra Marine Reference
- 18-8910
- Mallory Marine Reference
- 9-45614
- Product Configuration
- Single impeller; not a complete water pump kit
What’s in the Box
- 1 x water pump impeller
Installation Notes
Always consult the service manual for your exact Yamaha engine before beginning installation. The following is a general outline only:
- Switch off the engine and disconnect the battery where applicable.
- Place the outboard in a stable position and shift it into neutral.
- Remove the lower unit according to the engine service manual.
- Remove the water pump housing and note the original impeller orientation.
- Remove the old impeller and clean the mating surfaces.
- Install the replacement impeller in the correct orientation and reassemble the water pump components specified by the service manual.
- Reinstall the water pump housing and lower unit, ensuring that the driveshaft and water tube are correctly aligned.
- Run the engine only as directed by the service manual and confirm proper cooling-water discharge before normal operation.
Troubleshooting & FAQ
How do I confirm that this impeller fits my Yamaha outboard?
Check that your engine is a Yamaha 4-stroke F6A, F8B, F8C, F8F, F9.9F or F9.9J model. Also compare the original part with OEM reference 68T-44352-00-00 and consult your engine service manual.
What are common signs of a worn water pump impeller?
Possible signs include weak or missing water flow from the tell-tale outlet, overheating, or visible cracking, brittleness, deformation or missing blades on the old impeller. Stop operating the engine if overheating occurs.
Is this a complete water pump kit?
No. This listing is for one water pump impeller only. It does not include the water pump housing, wear plate, gaskets, key, bolts or other water pump components.
Is this an OEM Yamaha part?
No. This is an aftermarket replacement impeller. Yamaha OEM reference 68T-44352-00-00 is provided for identification and compatibility comparison.
Should the impeller be replaced as part of regular maintenance?
Inspect and replace the impeller according to the maintenance schedule and service instructions for your exact engine. Replacement timing can depend on operating hours, storage conditions and exposure to sand, silt or salt water.
Safety & Important Information
- Confirm the complete engine model designation and compare the original impeller before purchase.
- Do not operate an outboard that shows signs of overheating or inadequate cooling-water flow.
- Follow the service manual for your exact engine during installation.
- This is an aftermarket replacement component, not an original Yamaha part.
- Professional installation is recommended if you are not familiar with outboard water pump service.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for common outboard maintenance and repair applications.
- Application-Focused Listings — Product information is organized around engine models and manufacturer reference numbers to help with part comparison.
- Support for Careful Fitment Checks — Always compare the complete model designation and original component before ordering.
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