Water Pump Impeller Kit – Fits Honda 8/9.9/15/20 HP Outboards (Replaces 06192-ZW9-A30/06192-ZW9-A31/06192-ZW9-A32, Sierra Marine 18-3478)
Water Pump Impeller Kit – Fits Honda 8/9.9/15/20 HP Outboards (Replaces 06192-ZW9-A30/06192-ZW9-A31/06192-ZW9-A32, Sierra Marine 18-3478) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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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 Kit – Fits Honda 8/9.9/15/20 HP Outboards (Repl...
Water Pump Impeller Kit – Fits Honda 8/9.9/15/20 HP Outboards (Replaces 06192-ZW9-A30/06192-ZW9-A31/06192-ZW9-A32, Sierra Marine 18-3478) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Kit – Fits Honda 8/9.9/15/20 HP Outboards (Replaces 06192-ZW9-A30) is designed for Honda Marine 4-stroke 8–20 HP outboard motors, including BF8D, BF9.9D, BF15D, BF20D, BFP8D, BFP9.9D, BFP15D, and BFP20D models from all years.
It serves as a direct replacement for Honda part numbers 06192-ZW9-A30, 06192-ZW9-A31, and 06192-ZW9-A32, as well as aftermarket equivalents like Sierra Marine 18-3478 and Soxa Marine 18KH002.
- Engineered for direct-fit installation to restore cooling system performance.
- Kit includes the essential impeller, gasket, driveshaft key, and O-ring for a complete service.
- Helps prevent engine overheating by maintaining proper water circulation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Honda | 06192-ZW9-A30 |
| Honda | 06192-ZW9-A31 |
| Honda | 06192-ZW9-A32 |
| Sierra Marine | 18-3478 |
| Soxa Marine | 18KH002 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Honda Marine
Fitment for this kit covers a range of Honda portable and power thrust models. Note the conflicting information on shaft length; verify your specific OEM part number before ordering to ensure correct fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Honda | BF8D | 8 | 4-Stroke | All years | 06192-ZW9-A30 | Extra long shaft (25") |
| Honda | BF9.9D | 9.9 | 4-Stroke | All years | 06192-ZW9-A30 | Extra long shaft (25") |
| Honda | BF15D | 15 | 4-Stroke | All years | 06192-ZW9-A30 | Short (15") and long (20") shaft |
| Honda | BF20D | 20 | 4-Stroke | All years | 06192-ZW9-A30 | Short (15") and long (20") shaft |
| Honda | BFP8D | 8 | 4-Stroke | All years | 06192-ZW9-A30 | Extra long shaft (25") |
| Honda | BFP9.9D | 9.9 | 4-Stroke | All years | 06192-ZW9-A30 | Extra long shaft (25") |
| Honda | BFP15D | 15 | 4-Stroke | All years | 06192-ZW9-A30 | Short (15") and long (20") shaft |
| Honda | BFP20D | 20 | 4-Stroke | 2004–2006 | 06192-ZW9-A30 | Short (15") and long (20") shaft |
| Honda | BF15DK0-DK3 | 15 | 4-Stroke | All years | 06192-ZW9-A30 | Per JLM Marine |
| Honda | BF20DK0-DK3 | 20 | 4-Stroke | All years | 06192-ZW9-A30 | Per JLM Marine |
| Honda | BFP15DK0-DK3 | 15 | 4-Stroke | All years | 06192-ZW9-A30 | Per JLM Marine |
Technical Specs
- Product Type
- Water Pump Impeller Repair Kit
- Installation
- Direct replacement
- Warranty
- Varies by vendor (typically 1 year)
What’s in the Box
- 1 x Water Pump Impeller (19210-ZW9-A31/19210-ZW9-A32)
- 1 x Impeller Gasket (19232-ZW9-000)
- 1 x Impeller Key, Driveshaft (90752-ZW9-A30)
- 1 x O-Ring (91301-ZG3-000)
Installation Notes
- Disconnect the battery and shift the outboard into neutral.
- Remove the gearcase (lower unit) by unbolting it from the engine's midsection.
- Unbolt and remove the water pump housing to access the impeller.
- Take out the old impeller, driveshaft key, gasket, and O-ring. Note the rotational direction of the old impeller fins.
- Thoroughly clean the inside of the pump housing and wear plate, inspecting all surfaces for scoring or damage.
- Install the new gasket and O-ring on the clean housing.
- Slide the new driveshaft key into its slot and install the new impeller. Turn the driveshaft clockwise while pushing down to correctly orient the fins.
- Re-install the water pump housing cover and tighten its bolts to the manufacturer's specified torque.
- Re-attach the lower unit to the outboard.
- Once assembled, test the engine in the water and confirm a steady, strong stream of water from the tell-tale port.
Troubleshooting & FAQ
Will this kit fit my engine? There seems to be a conflict regarding shaft length.
The compatibility data for this kit shows some conflicts. While it fits many 15" (short) and 20" (long) shaft models, some sources indicate it also fits 25" (extra-long) shafts, while another explicitly says it will not. The most reliable method to ensure a match is to verify the OEM part number required for your specific motor (e.g., 06192-ZW9-A30) before purchasing.
What are the signs of a failing water pump impeller?
Common symptoms include a weak or intermittent water stream from the "tell-tale" outlet, engine overheating alarms activating, or a general loss of engine performance. A worn, brittle, or damaged impeller cannot pump water effectively, leading to poor cooling.
How often should I replace my impeller?
For preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1-2 years or 100-200 hours of operation, whichever comes first. Operation in saltwater or sandy/silty conditions may require more frequent replacement.
What is the difference between an OEM and an aftermarket part?
This listing is for an aftermarket replacement, not an original equipment manufacturer (OEM) part. It is built to meet or exceed OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 certified facility and are batch-inspected to ensure quality and consistency.
How fast is shipping and what does it cost?
We ship worldwide quickly, with typical transit times of 5–15 days for most regions. Standard shipping is free. Expedited shipping options, where available, will be presented at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our full 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 on a compatibility list—do not purchase.
- This is an aftermarket replacement part, not an OEM component.
- 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 rigorously tested for real-world conditions.
- Fast Global Fulfillment — We offer free standard delivery to most regions, with parts arriving in 5–15 days.
- Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.
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