Water Pump Impeller – Fits Yamaha 20-30HP (Replaces 6L2-44352-00)
Water Pump Impeller – Fits Yamaha 20-30HP (Replaces 6L2-44352-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Impeller – Fits Yamaha 20-30HP (Replaces 6L2-44352-00)
Water Pump Impeller – Fits Yamaha 20-30HP (Replaces 6L2-44352-00) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller – Fits Yamaha 20-25HP Outboard Motors (Replaces 6L2-44352-00) is an essential component for maintaining your engine’s cooling system. It is designed for a precise fit on Yamaha 2-stroke outboard motors from 20–25 HP (1996–2005) and Yamaha 4-stroke outboard models from F20–F30 HP (1998–2005).
This impeller serves as a direct replacement for Yamaha OEM part 6L2-44352-00-00 and interchanges with Sierra 18-3065, Quicksilver 8M6010333, and Mercury 8M0175391.
- Engineered for direct replacement, requiring lower unit removal for installation.
- Constructed from durable neoprene rubber to withstand the marine environment.
- Most kits include the necessary half-moon keyway for a complete installation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6L2-44352-00-00 |
| Sierra | 18-3065 |
| Quicksilver | 8M6010333 |
| Mercury | 8M0175391 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This impeller fits a range of Yamaha outboard motors. Please note the "Check application" note for F40 models, as verification is required before purchase.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 25B, 25J, 25V | 25 | 2-Stroke | 1996–2005 | 6L2-44352-00 | |
| Yamaha | 20 | 20 | 2-Stroke | 1996–1997 | 6L2-44352-00 | |
| Yamaha | F20A | 20 | 4-Stroke | 1998–2005 | 6L2-44352-00 | |
| Yamaha | F25A, FT25B, F25D, FT25F | 25 | 4-Stroke | 1998–2005 | 6L2-44352-00 | |
| Yamaha | F30A, F30B | 30 | 4-Stroke | 1998–2005 | 6L2-44352-00 | |
| Yamaha | F40B, F40F | 40 | 4-Stroke | 1998–2005 | 6L2-44352-00 | Check application |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct replacement requiring lower unit removal
- Material
- Neoprene rubber
- Application
- Closed cooling systems
- Recommended Replacement
- Every 100 hours or annually
- Key Type
- Half-moon keyway (included in most kits)
- Rotation
- Counter-clockwise (anti-clockwise)
- Other Technical Attributes
- Flexible rubber vanes press against housing to create water pressure
What’s in the Box
- 1 x Water Pump Impeller (6L2-44352-00-00)
- 1 x O-Ring (when purchased as part of kit)
- 1 x Key (when purchased as part of kit)
Installation Notes
Installation requires mechanical proficiency and involves removing the lower unit (gearcase) of your outboard. Once the lower unit is detached, unbolt the water pump housing to access the old impeller. Clean the housing interior, lubricate the new impeller with a marine-safe grease, and slide it into place, ensuring the vanes are oriented for counter-clockwise rotation. Reassemble the housing and lower unit, ensuring all bolts are torqued to manufacturer specifications.
Troubleshooting & FAQ
How do I know if this impeller fits my Yamaha outboard?
Verify your engine's model, horsepower, and year against the compatibility chart. This impeller replaces OEM part 6L2-44352-00. Note for Yamaha F40B and F40F models, you must verify the application before purchase. When in doubt, compare the images to your existing part.
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, or a noticeable drop in water pressure. A visual inspection may also reveal cracked, brittle, or worn vanes on the impeller.
How often should I replace the impeller?
As a best practice, replace your impeller every 100 operating hours or annually at the minimum, whichever occurs first. More frequent replacement may be necessary if you operate in silty, sandy, or shallow water.
What is the correct rotational direction for this impeller?
This impeller is designed for counter-clockwise (anti-clockwise) rotation. Installing it incorrectly will cause it to fail to pump water and may lead to engine damage.
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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