Water Pump Impeller – Fits Yamaha, Honda 8-20 HP (Replaces 63V-44352-01-00, 19210-ZW9-A32)
Water Pump Impeller – Fits Yamaha, Honda 8-20 HP (Replaces 63V-44352-01-00, 19210-ZW9-A32) is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Water Pump Impeller – Fits Yamaha, Honda 8-20 HP (Replaces 63V-4435...
Water Pump Impeller – Fits Yamaha, Honda 8-20 HP (Replaces 63V-44352-01-00, 19210-ZW9-A32) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller – Fits Yamaha 8-20 HP Outboard Motors (Replaces 63V-44352-01-00) is designed for a broad range of Yamaha (8-20 HP) and Honda (8-20 HP) outboard motors, including models from 1984 through 2023. It serves as a crucial component for pumping cooling water into the engine during operation, preventing overheating.
It is a direct aftermarket replacement for multiple part numbers, including Yamaha 63V-44352-01-00, Yamaha 63V-44352-00, Sierra 18-3040, and Honda 19210-ZW9-A32, which supersedes 19210-ZW9-A31.
- Engineered for direct OEM replacement fit and function.
- Constructed from a durable, high-efficiency, low-noise ABS rubber compound.
- Wear-resistant and corrosion-resistant for longevity in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 63V-44352-01-00 | Primary OEM reference |
| Yamaha | 63V-44352-00 | Superseded by 63V-44352-01-00 |
| Honda | 19210-ZW9-A32 | Supersedes 19210-ZW9-A31 |
| Honda | 19210-ZW9-A31 | Superseded by 19210-ZW9-A32 |
| Sierra | 18-3040 | Aftermarket cross-reference |
Engine & Model Compatibility
Confirm your engine model and year in the tables below. Note that some compatibility is based on retailer data and should be verified by part number.
Yamaha Applications: Fits a wide array of 2-stroke and 4-stroke models, primarily in the 9.9 HP and 15 HP range. Compatibility with some 8 HP and 20 HP models is reported but should be confirmed against your engine's original part.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F9.9 | 9.9 | 4-Stroke | 1985–1996 | 63V-44352-01-00 | |
| Yamaha | F15 | 15 | 4-Stroke | 1984–2006 | 63V-44352-01-00 | |
| Yamaha | F15C | 15 | 4-Stroke | 2006–2023 | 63V-44352-01-00 | |
| Yamaha | FT9.9 | 9.9 | 4-Stroke | 1985–1990 | 63V-44352-01-00 | |
| Yamaha | T9.9 | 9.9 | 4-Stroke | 1991–2023 | 63V-44352-01-00 | |
| Yamaha | (Unspecified) | 9.9 | 2-Stroke | 1984–1995 | 63V-44352-01-00 | |
| Yamaha | F20A | 20 | 4-Stroke | 2006–2021 | 63V-44352-01-00 | Some sources include 20HP compatibility |
Honda Applications: An aftermarket replacement for several BF and BFP series 4-stroke engines from 8 HP to 20 HP.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Honda | BF8/BF10 | 8/10 | 4-Stroke | 19210-ZW9-A32 | Exact years not specified |
| Honda | BF15/BFP15 | 15 | 4-Stroke | 19210-ZW9-A32 | Exact years not specified |
| Honda | BF20/BFP20 | 20 | 4-Stroke | 19210-ZW9-A32 | Exact years not specified |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct OEM replacement
- Material
- High quality ABS (rubber)
- Dimensions
- Outer Diameter: 39.54 mm (1.6 in), Inner Diameter: 13.2 mm (0.5 in), Thickness: 21.94 mm (0.9 in)
- Purpose
- Pumps cooling water into engine during operation
- Features
- High efficient, low noise, easy to install
- Durability
- Wear resistant, corrosion resistant
What’s in the Box
- 1 x Water Pump Impeller (Replaces 63V-44352-01-00)
Installation Notes
- Disconnect the battery and ensure the engine has completely cooled.
- Place the outboard in neutral and remove the lower unit (gearcase) bolts.
- Carefully separate the lower unit from the upper engine housing.
- Unbolt and remove the water pump housing cover to expose the old impeller.
- Note the rotational direction of the old impeller's vanes before removal.
- Clean the impeller housing and inspect the wear plate for scoring or damage.
- Install the new impeller, turning the driveshaft clockwise to bend the vanes into the correct orientation.
- Apply a light coat of marine grease to the inside of the housing.
- Reinstall the water pump housing and torque its bolts to manufacturer specifications.
- Reassemble the lower unit to the engine, ensuring the shift shaft and water tube align.
- Once assembled, test the engine in water to confirm a strong tell-tale stream.
Troubleshooting & FAQ
How do I know if my impeller is failing?
The most common signs are a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alarms, or a noticeable drop in water pressure. During inspection, look for cracked, brittle, or worn-down rubber vanes.
What is the recommended replacement interval?
For optimal engine protection, it is best practice to replace the water pump impeller annually or every 100 hours of operation, whichever comes first, especially for boats used in saltwater or sandy/silty conditions.
Will this fit my 8HP Yamaha or 20HP Honda?
While this part is listed as compatible with certain 8-20 HP models, fitment can vary by year and specific engine series. The best way to ensure a match is to verify that your original impeller's part number is listed in our Part Number Matrix (e.g., 63V-44352-01-00 for Yamaha or 19210-ZW9-A32 for Honda).
Is there a difference between the "-01-00" and "-00" Yamaha suffixes?
Typically, the final "-00" in a Yamaha part number refers to the packaging or kit version and does not change the core component. This impeller is a direct replacement for both 63V-44352-01-00 and 63V-44352-00.
Can I install this part myself?
While installation is possible for those with strong mechanical skills and the correct tools, we recommend professional installation. An improperly installed impeller can lead to severe engine damage from overheating.
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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
