Water Pump Impeller – Fits Yamaha Outboard 8A/8B/15A/E15A (Replaces 662-44352-01-00)
Water Pump Impeller – Fits Yamaha Outboard 8A/8B/15A/E15A (Replaces 662-44352-01-00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This high-performance Water Pump Impeller – Fits Yamaha Outboard 8A/8B/15A/E15A (Replaces 662-44352-01-00) is engineered for Yamaha 8–15 HP, 2-Stroke outboard engines, including models E8D, 8A/8B, and 15A/E15A. It serves as a direct-fit replacement, restoring cooling system efficiency and preventing engine overheating.
It provides a direct interchange for Yamaha 662-44352-01-00/662443520100, Mariner 47-81242M/47-95611M, Sierra 18-3063, CEF 500321, MAL 9-45608, and GLM 91005.
- Engineered for direct OEM replacement installation.
- Features a multi-blade flexible impeller design for efficient water circulation.
- Package contains one complete impeller assembly.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Yamaha | 662-44352-01-00 / 662443520100 |
| Mariner | 47-81242M / 47-95611M |
| Sierra | 18-3063 |
| CEF | 500321 |
| MAL | 9-45608 |
| GLM | 91005 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This impeller is confirmed to fit the following Yamaha outboard models. Please verify your specific engine requirements before purchasing.
| Brand | Model | Rated HP | Stroke | OEM Part No. |
|---|---|---|---|---|
| Yamaha | E8D | 8 | 2-Stroke | 662-44352-01-00 |
| Yamaha | 8A/8B | 8 | 2-Stroke | 662-44352-01-00 |
| Yamaha | 15A/E15A | 15 | 2-Stroke | 662-44352-01-00 |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct OEM Replacement
- Dimensions
- 40.00 mm outer diameter × 22.00 mm height × 14.00 mm inner bore
- Housing Material
- Neoprene Rubber
- Housing Color
- Black
- Other Technical Attributes
- Multi-blade flexible impeller design for efficient water circulation
What’s in the Box
- 1 x Impeller (Replaces 662-44352-01-00)
Installation Notes
- Disconnect the negative battery cable and ensure the engine is off.
- Place the outboard motor in neutral and remove the lower unit (gearcase) bolts.
- Carefully separate the lower unit from the upper engine housing.
- Locate and unbolt the water pump housing cover to expose the impeller.
- Remove the old impeller, noting the direction its blades are bent. A little prying may be necessary.
- Clean any debris from the impeller housing and inspect the wear plate and housing for scoring or cracks.
- Insert the new impeller while turning the driveshaft clockwise to correctly flex the blades.
- Reinstall the water pump housing, ensuring a proper seal.
- Reattach the lower unit to the engine, reconnect the battery, and test the engine using a water source (flushing muffs) to verify water output.
Troubleshooting & FAQ
How do I confirm this impeller fits my specific engine?
The best way is to match your existing OEM part number to one listed in our Part Number Matrix. If you cannot find your part number, check the Engine & Model Compatibility table. When in doubt, message us with your engine's model and serial number before ordering.
What are the signs of a failing water pump impeller?
Common signs include a weak or non-existent water stream from the "telltale" outlet, engine overheating alerts, or a noticeable decrease in engine performance. A dry-rotted, cracked, or stiff impeller should be replaced immediately.
How often should I replace my impeller?
For preventative maintenance, it is recommended to inspect your impeller annually and replace it every 1-2 years, or every 100-200 hours of use, depending on operating conditions (especially in saltwater or sandy/silty environments).
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.
Payment & Security
Payment methods
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