Water Pump Impeller Kit – Fits Yamaha 6A/8A/15A 2-Stroke (Replaces 655-44352-09-00, 47-95611M)
Water Pump Impeller Kit – Fits Yamaha 6A/8A/15A 2-Stroke (Replaces 655-44352-09-00, 47-95611M) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Kit – Fits Yamaha 6A/8A/15A 2-Stroke (Replaces ...
Water Pump Impeller Kit – Fits Yamaha 6A/8A/15A 2-Stroke (Replaces 655-44352-09-00, 47-95611M) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Kit is designed for Yamaha 2-Stroke 6 HP, 8 HP, and select 15 HP outboard motors, specifically covering 6A, 8A, and P165 models manufactured between 1985–1996.
It serves as a direct replacement for multiple OEM and aftermarket parts, including Yamaha 655-44352-09-00, Mercury 47-95611M, and Sierra 18-3066.
- Features a key-drive shaft interface for secure installation.
- Constructed from durable neoprene rubber for reliable performance in marine environments.
- Engineered with a 6-blade design to ensure efficient water flow.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 655-44352-09-00 |
| Yamaha | 655-44352-09 |
| Yamaha | 647-44352-00 |
| Yamaha | 6474435200 |
| Yamaha | 662-44352-01-00 |
| Mercury / Mariner | 47-95611M |
| Mercury / Mariner | 47-81242M |
| Sierra | 18-3066 |
| GLM | 89500 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha models, verify your engine's serial number (S/N) to ensure correct short or long shaft fitment as noted.
For Mercury/Mariner, this part fits various 8 HP 2-stroke models. Confirmation of your specific model is recommended.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 6A | 6 | 2-Stroke | 1985–1996 | 655-44352-09-00 | Short Shaft (S/N 00601 & Up) |
| Yamaha | 6A | 6 | 2-Stroke | 1985–1996 | 655-44352-09-00 | Long Shaft (S/N 30301 & Up) |
| Yamaha | 6B | 6 | 2-Stroke | 1985–1996 | 655-44352-09-00 | Short Shaft (S/N 20161 & Up) |
| Yamaha | 6B | 6 | 2-Stroke | 1985–1996 | 655-44352-09-00 | Long Shaft (S/N 54716 & Up) |
| Yamaha | 8A | 8 | 2-Stroke | 1985–1996 | 655-44352-09-00 | Short Shaft (S/N 20161 & Up) |
| Yamaha | 8A | 8 | 2-Stroke | 1985–1996 | 655-44352-09-00 | Long Shaft (S/N 54716 & Up) |
| Yamaha | P165 | 8 | 2-Stroke | 1985–1996 | 655-44352-09-00 | |
| Yamaha | 8B | 8 | 2-Stroke | 1985–1996 | 655-44352-09-00 | |
| Yamaha | 15A | 15 | 2-Stroke | 1985–1996 | 655-44352-09-00 | |
| Yamaha | E8D | 8 | 2-Stroke | 1985–1996 | 655-44352-09-00 | |
| Yamaha | E15A | 15 | 2-Stroke | 1985–1996 | 662-44352-01 | |
| Mercury/Mariner | Various | 8 | 2-Stroke | 1985–1996 | 47-95611M/47-81242M |
Technical Specs
- Product Type
- Water Pump Impeller Kit
- Installation
- Key Drive
- Housing Color
- Black
- Diameter
- 40mm (1.886")
- Height
- 14mm (0.551")
- Shaft Diameter
- 11mm (0.429")
- Weight
- 10g (0.35oz)
- Blade Configuration
- 6 blade
- Material
- Neoprene rubber
- Other Technical Attributes
- Key Drive shaft interface
What’s in the Box
- 1 x Water Pump Impeller (655-44352-09-00)
Installation Notes
- Disconnect the battery and shift the outboard into neutral.
- Drain the gearcase oil before unbolting and carefully lowering the lower unit (gearcase).
- Locate and unbolt the water pump housing cover.
- Remove the old impeller, noting its rotational direction. Clean any debris from the housing.
- Slide the new impeller onto the driveshaft, using the key to lock it in place.
- Turn the driveshaft clockwise to bend the blades correctly while sliding the housing down over the impeller.
- Re-install the water pump housing and torque bolts to manufacturer specifications.
- Re-attach the lower unit, refill the gearcase oil, and reinstall the propeller.
- Start the engine in water and verify that a steady stream of water is exiting the "telltale" outlet at all RPMs.
Troubleshooting & FAQ
How do I confirm this impeller is correct for my engine?
Check our "Engine & Model Compatibility" table. It's crucial to match your engine's brand, model, HP, and year. For some Yamaha models, you may also need to check the serial number. If in doubt, compare the dimensions and part numbers listed here with your old part.
What are the signs of a bad water pump impeller?
Common symptoms include a weak or non-existent water stream from the "telltale" outlet, engine overheating alerts, and, in severe cases, steam coming from the exhaust.
How often should I change my impeller?
As a general maintenance rule, it’s recommended to inspect your impeller annually and replace it every 1-2 years or every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater).
Is the woodruff key for the impeller shaft included?
This kit includes the impeller only. The impeller key is not included. Please ensure you retain your existing key or source one separately if needed.
My engine is overheating, but the telltale stream looks okay. Could it still be the impeller?
While a weak stream is a key indicator, it's not the only one. An impeller with worn, stiff, or damaged blades may not generate enough pressure to cool the engine adequately at higher RPMs, even if the low-speed stream appears normal. Also check for blockages in the cooling water passages.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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