Water Pump Impeller – Fits Honda/Tohatsu BF/F75-100HP (Replaces Honda 19210-ZY9-H01)
Water Pump Impeller – Fits Honda/Tohatsu BF/F75-100HP (Replaces Honda 19210-ZY9-H01) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Water Pump Impeller – Fits Honda/Tohatsu BF/F75-100HP (Replaces Hon...
Product Details
This Water Pump Impeller – Fits Honda BF75/BF80/BF90/BF100 Outboards (Replaces 19210-ZY9-H01) is a critical cooling system component for Honda BF75, BF80, BF90, and BF100 outboard motors, ensuring proper water circulation through the engine. It is designed for Honda Marine 4-stroke outboards from the 1990s–2000s and is also compatible with select Tohatsu 4-stroke models requiring an equivalent part number.
This impeller serves as a direct cross-reference for Honda part numbers 19210-ZY9-H01, 06193-ZY9-H01, and 06192-ZY9-H00, as well as Tohatsu part number HZY919210H01.
- Engineered for direct OEM-replacement fit and function.
- Constructed from durable neoprene rubber for a long service life.
- Installation requires correct alignment with the driveshaft keyway slot.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Honda | 19210-ZY9-H01 |
| Honda | 06193-ZY9-H01 |
| Honda | 06192-ZY9-H00 |
| Tohatsu | HZY919210H01 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Honda models, it is critical to verify your frame serial number as noted in the table to ensure correct fitment.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Honda | BF75DK3, BF75DK4 | 75 | 4-Stroke | 19210-ZY9-H01 | Frame serial number BBAJ-1200001 and above |
| Honda | BF80A, BF80AK1 | 80 | 4-Stroke | 19210-ZY9-H01 | |
| Honda | BF90DK4, BF90DK5 | 90 | 4-Stroke | 19210-ZY9-H01 | Frame serial number BBCJ-1300001 and above |
| Honda | BF100A, BF100AK1 | 100 | 4-Stroke | 19210-ZY9-H01 |
This part also fits select Tohatsu models that call for the equivalent OEM part number.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Tohatsu | F75DK3, F75DK4 | 75 | 4-Stroke | HZY919210H01 | |
| Tohatsu | BF80A, BF80AK1 | 80 | 4-Stroke | HZY919210H01 | |
| Tohatsu | BF90DK4, BF90DK5 | 90 | 4-Stroke | HZY919210H01 | |
| Tohatsu | BF100A, BF100AK1 | 100 | 4-Stroke | HZY919210H01 |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct OEM Replacement
- Housing Material
- Rubber (Neoprene)
- Housing Color
- Black
- Warranty
- Varies by manufacturer (OEM vs. aftermarket)
- Other Technical Attributes
- Driveshaft keyway slot alignment required during installation
What’s in the Box
- 1 x Water Pump Impeller (19210-ZY9-H01)
Note: Some retailers sell complete service kits which may include additional components like O-rings, gaskets, and a key way. This listing is for the impeller only.
Installation Notes
- Disconnect the battery and ensure the engine is off and cool.
- Place the outboard motor's lower unit in a suitable position for service.
- Remove the bolts securing the water pump housing cover.
- Carefully remove the housing, noting the rotational direction of the existing impeller's fins.
- Slide the old impeller off the driveshaft, removing the key way.
- Clean the interior of the pump housing and inspect it for any wear or damage.
- Install the key way onto the new impeller and slide it onto the driveshaft.
- Apply a light coat of marine grease to the inside of the housing.
- Install the new impeller, rotating the driveshaft in the direction of engine operation to bend the fins correctly.
- Reassemble the water pump housing, gaskets, and cover, then torque bolts to manufacturer specifications.
- Reconnect the battery and test the engine's cooling system at a safe idle speed, checking for a strong water stream.
Troubleshooting & FAQ
How do I know if this impeller fits my Honda engine?
First, confirm your engine model is listed (e.g., BF90DK4). Second, for certain models, you must verify your engine's frame serial number against the ranges specified in the compatibility table. If your serial number is not in the specified range, this part may not fit.
What are the signs of a failing water pump impeller?
Common signs include the engine overheating at idle or low speeds, a weak or non-existent water stream from the "telltale" outlet, and a dry, brittle, or cracked appearance on the old impeller upon inspection.
How often should I replace my impeller?
As a preventative maintenance measure, most manufacturers recommend replacing the water pump impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you operate in sandy or silty water.
Will this fit my Tohatsu engine?
This part is compatible with Tohatsu models that use the OEM part number HZY919210H01. Please consult your engine's service manual or existing part to confirm compatibility before ordering.
Is a gasket included with this part?
No, this listing is for the impeller only. Gaskets, o-rings, and other hardware are typically included in a complete water pump service kit, which is sold separately.
Can I install the impeller myself?
Installation is possible for those with mechanical experience and the correct tools. However, consulting a professional marine mechanic or your engine's official service manual is highly recommended to ensure proper installation and function.
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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