Water Pump Impeller – Fits Yamaha, Mercury/Mariner 6-15 HP (Replaces 662-44352-01-00, 47-95611M)
Water Pump Impeller – Fits Yamaha, Mercury/Mariner 6-15 HP (Replaces 662-44352-01-00, 47-95611M) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller – Fits Yamaha, Mercury/Mariner 6-15 HP (Replace...
Water Pump Impeller – Fits Yamaha, Mercury/Mariner 6-15 HP (Replaces 662-44352-01-00, 47-95611M) is backordered and will ship as soon as it is back in stock.
Product Details
This is a high-quality aftermarket Water Pump Impeller – Fits Yamaha 6-15 HP Outboard Motors, engineered to meet or exceed original equipment standards. It's designed for a range of 2-stroke Yamaha (6 HP, 8 HP, 15 HP) and Mercury/Mariner (8-15 HP) outboards manufactured from the early 1980s through the early 1990s.
It serves as a direct replacement for multiple part numbers, including Yamaha 662-44352-01-00 and 662-44352-00-00, Sierra 18-3063, Mercury/Mariner 47-95611M, and Mallory 9-45608.
- Installs as a direct OEM-equivalent replacement.
- Constructed from durable neoprene and hardened nylon for reliable performance.
- Package includes one water pump impeller.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 662-44352-01-00 |
| Yamaha | 662-44352-00-00 |
| Sierra | 18-3063 |
| Mercury/Mariner | 47-95611M |
| Mercury/Mariner | 47-81242M |
| Mercury/Mariner | 47-02173 |
| Mallory Marine | 9-45608 |
| GLM | 89618 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha models, fitment is often determined by the serial number range. Please verify your engine's serial number against the listed values.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | 6A (Short Shaft) | 6 HP | 2-Stroke | S/N 00601 & Up | 662-44352-01-00, 662-44352-00-00 |
| Yamaha | 6A (Long Shaft) | 6 HP | 2-Stroke | S/N 30301 & Up | 662-44352-01-00, 662-44352-00-00 |
| Yamaha | 6B (Short Shaft) | 6 HP | 2-Stroke | S/N 20161 & Up | 662-44352-01-00, 662-44352-00-00 |
| Yamaha | 6B (Long Shaft) | 6 HP | 2-Stroke | S/N 54716 & Up | 662-44352-01-00, 662-44352-00-00 |
| Yamaha | 8A (Short Shaft) | 8 HP | 2-Stroke | S/N 20161 & Up | 662-44352-01-00, 662-44352-00-00 |
| Yamaha | 8A (Long Shaft) | 8 HP | 2-Stroke | S/N 54716 & Up | 662-44352-01-00, 662-44352-00-00 |
For Mariner models, which were often built by Yamaha, cross-reference your engine's serial number carefully to ensure correct fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Mariner | 8A | 8 HP | 2-Stroke | S/N 655-000300 and below | 47-95611M, 47-81242M |
| Mariner | 8A | 8 HP | 2-Stroke | S/N 682-000551 and Up | 47-95611M, 47-81242M |
| Mariner | 8B | 8 HP | 2-Stroke | S/N 677-000101 and Up | 47-95611M, 47-81242M |
| Mariner | 8K | 8 HP | 2-Stroke | S/N 680-000551 thru 680-001985 | 47-95611M, 47-81242M |
| Mariner | 8K | 8 HP | 2-Stroke | S/N 680-304926 thru 680-348705 | 47-95611M, 47-81242M |
| Mariner | 8K (long) | 8 HP | 2-Stroke | S/N 680-348706 & Up | 47-95611M, 47-81242M |
| Mariner | 8K (long) | 8 HP | 2-Stroke | S/N 680K-300302 & Up | 47-95611M, 47-81242M |
| Mariner | 8K (short) | 8 HP | 2-Stroke | S/N 680-001986 & Up | 47-95611M, 47-81242M |
| Mariner | W8 (Marathon) | 8 HP | 2-Stroke | S/N 677-057507 & Up | 47-95611M, 47-81242M |
| Mariner | 15A | 15 HP | 2-Stroke | S/N 651-000285 and below | 47-95611M, 47-81242M |
| Mariner | 15A (long) | 15 HP | 2-Stroke | S/N 651-3000100 and Below | 47-95611M, 47-81242M |
| Mariner | W15 | 15 HP | 2-Stroke | S/N 662-001846 and Up | 47-95611M, 47-81242M |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct OEM Replacement
- Material
- Neoprene and hardened nylon
- Number of Blades
- 6
- Overall Diameter
- 40 mm (1.57 inch)
- Height
- 22 mm (0.87 inch)
- Hub Shaft Diameter
- 14 mm (0.55 inch)
- Weight
- 0.35 oz (10 g)
- Color
- Black
What’s in the Box
- 1 x Water Pump Impeller (Replaces 662-44352-01-00)
Installation Notes
- Disconnect the negative battery cable to prevent accidental starting.
- Place the outboard in neutral and remove the lower unit (gearcase) bolts.
- Carefully lower the gearcase to access the water pump assembly.
- Unscrew the bolts holding the water pump housing cover and remove it.
- Slide the old impeller off the driveshaft, noting the direction of the vanes.
- Clean any debris from the housing interior and inspect the wear plate and gaskets.
- Lightly lubricate the new impeller and housing interior with marine grease.
- Install the new impeller onto the driveshaft, turning the shaft clockwise to bend the vanes correctly.
- Reinstall the water pump housing, ensuring a proper seal.
- Reattach the lower unit to the engine and reconnect all linkages.
- Reconnect the battery and test the engine in a water supply to confirm water circulates correctly from the tell-tale outlet.
Troubleshooting & FAQ
How do I know if this impeller fits my engine?
The most reliable method is to match your engine's model and serial number to our compatibility tables. If you are unsure, visually compare your old impeller's dimensions and blade count to the specifications and photos on this page.
What are the signs of a failing water pump impeller?
Common symptoms include a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alarms, and reduced engine performance. Visible signs on the old impeller include cracked, brittle, or missing vanes.
How often should I replace my impeller?
As a general maintenance rule, it is recommended to inspect your water pump 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).
Can I replace just the impeller or do I need a full kit?
While this listing is for the impeller only, it is best practice to replace the entire water pump kit (including housing, gaskets, and wear plate) if there are visible signs of scoring, warping, or corrosion on the other components.
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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