Water Pump Impeller – Fits Yamaha 2 HP and 3 HP Outboard Motors (Replaces 6L5-44352-00-00)
Water Pump Impeller – Fits Yamaha 2 HP and 3 HP Outboard Motors (Replaces 6L5-44352-00-00) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller – Fits Yamaha 2 HP and 3 HP Outboard Motors (Replaces 6L5-44352-00-00) is backordered and will ship as soon as it is back in stock.
Product Details
This water pump impeller is an aftermarket replacement for selected Yamaha outboard cooling systems. Catalog references identify this impeller for Yamaha 3 HP 2-stroke models from 1988–2002 and Yamaha F2.5 4-stroke models listed from 2003 onward. Always match the complete engine model and year before ordering.
This impeller replaces Yamaha OEM part number 6L5-44352-00-00. The listing is for one impeller only; no drive pin, water-pump housing, gasket, or other service parts are included unless separately stated.
- Replacement water-pump impeller for selected Yamaha outboards.
- Helps restore water circulation through the engine cooling system.
- Designed for installation in the water-pump assembly using the original compatible hardware.
- Aftermarket replacement; not a Yamaha-branded OEM component.
Part Number Matrix
Use the verified manufacturer reference below when comparing your original impeller or service-manual information.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 6L5-44352-00-00 | OEM reference replaced by this aftermarket impeller. |
Engine & Model Compatibility
The following model/year combinations are catalog references for this impeller. Keep horsepower, stroke type, model, and year together when checking fitment; a similar model name alone is not sufficient.
| Brand | Model family or model | Rated HP | Stroke | Years listed | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | 3LG, 3SG | 3 | 2-Stroke | 1988 | 6L5-44352-00-00 |
| Yamaha | 3LF, 3SF | 3 | 2-Stroke | 1989 | 6L5-44352-00-00 |
| Yamaha | 3LD, 3SD, 3MLHP, 3MSHP | 3 | 2-Stroke | 1990–1991 | 6L5-44352-00-00 |
| Yamaha | 3MLHQ, 3MSHQ | 3 | 2-Stroke | 1992 | 6L5-44352-00-00 |
| Yamaha | 3MLHR, 3MSHR | 3 | 2-Stroke | 1993 | 6L5-44352-00-00 |
| Yamaha | 3MLHS, 3MSHS | 3 | 2-Stroke | 1994 | 6L5-44352-00-00 |
| Yamaha | 3MLHT, 3MSHT | 3 | 2-Stroke | 1995 | 6L5-44352-00-00 |
| Yamaha | 3MLHU, 3MSHU | 3 | 2-Stroke | 1996 | 6L5-44352-00-00 |
| Yamaha | 3MLHV, 3MSHV | 3 | 2-Stroke | 1997 | 6L5-44352-00-00 |
| Yamaha | 3MLHW, 3MSHW | 3 | 2-Stroke | 1998 | 6L5-44352-00-00 |
| Yamaha | 3MLHX, 3MSHX | 3 | 2-Stroke | 1999 | 6L5-44352-00-00 |
| Yamaha | 3MLHY, 3MSHY | 3 | 2-Stroke | 2000 | 6L5-44352-00-00 |
| Yamaha | 3MSHZ, 3MSHKZ | 3 | 2-Stroke | 2001 | 6L5-44352-00-00 |
| Yamaha | 3MSHA | 3 | 2-Stroke | 2002 | 6L5-44352-00-00 |
| Yamaha | F2.5MSHB | 2 | 4-Stroke | 2003 | 6L5-44352-00-00 |
| Yamaha | F2.5MSHC | 2 | 4-Stroke | 2004 | 6L5-44352-00-00 |
| Yamaha | F2.5MSHD | 2 | 4-Stroke | 2005 | 6L5-44352-00-00 |
| Yamaha | F2.5MSH | 2 | 4-Stroke | 2006–2011 | 6L5-44352-00-00 |
| Yamaha | F2.5SMHA, F2.5LMHA | 2 | 4-Stroke | 2012–2015 | 6L5-44352-00-00 |
| Yamaha | F2.5SMHB, F2.5LMHB | 2 | 4-Stroke | 2015–2022 | 6L5-44352-00-00 |
Technical Specs
- Product Type
- Water pump impeller
- Application
- Selected Yamaha outboard cooling systems
- Replacement Reference
- Yamaha 6L5-44352-00-00
- Construction
- Aftermarket replacement impeller
What’s in the Box
- 1 x Water pump impeller
Not included: drive pin, water-pump housing, gasket, screws, or other installation hardware.
Installation Notes
- Disconnect the battery or spark-plug lead as appropriate and prevent accidental starting.
- Support the outboard securely and remove the lower unit according to the engine service manual.
- Remove the water-pump cover and take out the old impeller.
- Inspect the impeller key, drive pin, housing, wear plate, and related hardware. Reuse only serviceable compatible parts or replace them separately as required.
- Clean the pump cavity and install the new impeller with the fins oriented according to the manufacturer’s instructions.
- Reinstall the cover and lower unit using the correct seals, alignment procedure, and manufacturer torque specifications.
- Run the engine only in an appropriate water supply and confirm a strong cooling-water discharge before normal operation.
Maintenance & FAQ
How do I confirm fitment?
Match the complete Yamaha model designation, rated horsepower, stroke type, and year with the compatibility table. Also compare the existing impeller with Yamaha reference 6L5-44352-00-00 and consult the engine service manual when any detail differs.
What are common signs of a worn impeller?
Possible symptoms include overheating, a weak or missing telltale stream, steam, or reduced cooling-water flow. Stop operation if the engine overheats and inspect the complete cooling system.
How often should the impeller be replaced?
Impeller replacement intervals depend on the engine manufacturer’s maintenance schedule and operating conditions. Inspect it regularly and replace it sooner after operation in sand, silt, salt water, or after an overheat event.
Is a drive pin included?
No. This product is one replacement impeller only. The original serviceable drive pin or compatible replacement hardware must be supplied separately.
Is this an OEM part?
No. This is an aftermarket replacement impeller intended to replace the referenced Yamaha part number. Yamaha is a trademark of its respective owner and is used only to identify compatibility.
Safety & Important Info
- Verify the full engine model, horsepower, stroke type, year, and original part number before ordering.
- Do not operate an outboard without adequate cooling-water supply.
- Inspect the complete water-pump assembly during installation; a worn housing, wear plate, key, or seal can affect performance.
- Professional installation is recommended if you are not familiar with lower-unit or water-pump service.
About Sea Sierra
- Marine Replacement Parts — We supply aftermarket components for routine marine maintenance and repair.
- Fitment-Focused Listings — Product references are organized by manufacturer number and engine application where available.
- Practical Service Support — Always verify the complete engine identity and consult the service manual before installation.
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