Water Pump Impeller – Fits Yamaha 4-Stroke Outboards F6-F9.9 (Replaces 68T-44352-00-00)
Water Pump Impeller – Fits Yamaha 4-Stroke Outboards F6-F9.9 (Replaces 68T-44352-00-00) 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 Water Pump Impeller – Fits Yamaha 4-Stroke Outboards F6-F9.9 (Replaces 68T-44352-00-00) is designed for Yamaha 4-Stroke outboard motors from 6 to 9.9 HP, covering various F6, F8, and F9.9 series models manufactured between 2001 and 2023.
It serves as a direct replacement for Yamaha part number 68T-44352-00-00 and interchanges with aftermarket equivalents from Sierra (18-8910), SouthMarine (68T-44352-00), and Mallory (9-45614).
- Designed for direct OEM-replacement installation.
- Features a durable neoprene rubber housing with 6 blades.
- Package contains one water pump impeller.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Yamaha | 68T-44352-00-00 |
| Yamaha | 68T-44352-00-00-00 |
| Sierra | 18-8910 |
| SouthMarine | 68T-44352-00 |
| Mallory | 9-45614 |
Engine & Model Compatibility
Confirm your engine model and year in the table below.
For Yamaha Owners: This part fits specific F6, F8, and F9.9 four-stroke models. Please verify your exact model and year range before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F6 | 6 | 4-Stroke | 2001–2008 | 68T-44352-00-00 | |
| Yamaha | F8 | 8 | 4-Stroke | 2001–2010 | 68T-44352-00-00 | |
| Yamaha | F8A | 8 | 4-Stroke | 2011–2014 | 68T-44352-00-00 | |
| Yamaha | F8B | 8 | 4-Stroke | 2015–2020 | 68T-44352-00-00 | |
| Yamaha | F9.9F (6AU) | 9.9 | 4-Stroke | 2007–2010 | 68T-44352-00-00 | |
| Yamaha | F9.9A | 9.9 | 4-Stroke | 2011–2012 | 68T-44352-00-00 | |
| Yamaha | F9.9B | 9.9 | 4-Stroke | 2013–2023 | 68T-44352-00-00 | 2013 and Newer |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct OEM Replacement
- Number of Blades
- 6
- Housing Material
- Neoprene Rubber
- Housing Color
- Black
- Dimensions
- 1.5 in x 7.0 in x 12.5 in
- Warranty
- Varies by brand (Limited Lifetime for Sierra)
- Other Technical Attributes
- External Impeller Design
What’s in the Box
- 1 x Impeller (68T-44352-00-00)
Installation Notes
Always consult your engine’s service manual before starting work. The following is a general guide:
- Disconnect the battery and remove the engine cover.
- Shift the outboard into neutral.
- Remove the bolts securing the lower unit (gearcase) to the upper casing and carefully lower it.
- Locate the water pump housing on top of the gearcase and remove its bolts.
- Slide the housing up to expose the old impeller. Note its orientation.
- Remove the old impeller, key, gaskets, and wear plate. Clean all surfaces thoroughly.
- Install the new wear plate, gasket, and woodruff key.
- Slide the new impeller onto the drive shaft, twisting clockwise to align the blades correctly within the housing.
- Re-install the water pump housing, ensuring a tight seal.
- Re-attach the lower unit to the engine, making sure the driveshaft and water tube align.
- Reconnect the battery, start the engine in water, and verify water is exiting the tell-tale port.
Troubleshooting & FAQ
How do I know if this impeller fits my Yamaha outboard?
This impeller is specifically designed for Yamaha 4-Stroke models from 6 to 9.9 HP, including various F6, F8, and F9.9 series. The most reliable method is to cross-reference your engine's model and year against the compatibility chart provided. You can also verify by matching the OEM part number 68T-44352-00-00 with your service manual.
What are the signs of a failing water pump impeller?
Common signs of a worn or damaged impeller 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 blades.
How often should I replace my water pump impeller?
As a preventative maintenance measure, it is recommended to replace the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you frequently operate in sandy, silty, or saltwater conditions.
Is this just the impeller or a complete water pump kit?
This product listing is for the impeller only, as shown in the "What's in the Box" section. It does not include the housing, wear plate, gaskets, or bolts. Full repair kits are sold separately.
What's the difference between an OEM and an aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.
How much is shipping and how fast is it?
We ship worldwide quickly—typical transit is 5–15 days for most regions. Standard shipping is free, and expedited options will appear at checkout if they are available for your location.
What is your warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchase. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement component, not an original equipment manufacturer (OEM) part.
- Professional installation is recommended for safety and optimal 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 quality control.
Payment & Security
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