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Water Pump Impeller – Fits Honda Marine 8, 9.9, 10 HP (Replaces 19210-ZW9-013, 19210-ZW9-003)

Regular price $16.59

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If the return is due to our error or a defective item, we’ll make it right.


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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.

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This replacement Water Pump Impeller – Fits Honda Marine 8, 9.9, 10 HP is designed for 4-stroke outboard engines, including BF8D, BFP8D, BF9.9D, and BFP9.9D models manufactured between 2001 and 2019. It ensures reliable cooling system performance to protect your engine from overheating.

Serves as a direct replacement for Honda OEM parts 19210-ZW9-013 and 19210-ZW9-003, as well as aftermarket equivalents Sierra 18-3100, CEF 500347, and Soxa Marine 17IH005.

  • Engineered for direct replacement, requiring only the removal of the water pump housing for installation.
  • Constructed from durable neoprene rubber with a hardened nylon/brass hub for longevity in marine environments.
  • Must be installed to match the engine's clockwise rotation for proper water flow.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Honda 19210-ZW9-013
Honda 19210-ZW9-003
Sierra 18-3100
CEF 500347
Soxa Marine 17IH005

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This impeller is compatible with specific Honda Marine 4-stroke outboards. Note that "BF" models are standard drive and "BFP" models are power thrust configurations, but they share the same impeller.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Honda Marine BF8D, BFP8D 8 4-Stroke 2001–2019 19210-ZW9-013 Includes BF8D2, BF8D3, BF8D4, BF8D5, BF8D6, BF8DK0, BF8DK2, BF8DK3
Honda Marine BF9.9D, BFP9.9D 9.9 4-Stroke 2001–2019 19210-ZW9-013 Includes BF9.9D2, BF9.9D3, BF9.9D4, BF9.9D5, BF9.9D6, BF9.9DK0, BF9.9DK2, BF9.9DK3
Honda Marine BF10D, BFP10D, BF10B, BFP10B 10 4-Stroke All years 19210-ZW9-013

Technical Specs

Product Type
Water Pump Impeller
Material
Neoprene rubber with hardened nylon/brass hub
Blades
6
Direction
Must be installed for clockwise rotation
Height
14.8 mm (0.58 in)
Overall Diameter
45.4 mm (1.79 in)
Hub Shaft Diameter
13.4 mm (0.53 in)
Weight
9.9 g (0.35 oz)

What’s in the Box

  • 1 x Water Pump Impeller

Installation Notes

  1. Disconnect the battery and remove the engine cover.
  2. Shift the outboard into neutral and remove the propeller.
  3. Locate and disconnect the shift linkage.
  4. Remove the bolts securing the lower unit (gearcase) to the upper casing.
  5. Carefully lower the gearcase to access the water pump housing.
  6. Remove the water pump housing bolts and lift the housing to expose the impeller.
  7. Remove the old impeller, noting the rotational direction of the vanes.
  8. Clean the housing and wear plate, inspecting for scoring or damage. Replace if necessary.
  9. Install the new impeller, ensuring the vanes are oriented for clockwise rotation. A small amount of soap can ease installation.
  10. Reassemble the water pump housing, gearcase, and shift linkage in reverse order, ensuring all bolts are properly torqued.

Troubleshooting & FAQ

How do I know if my water pump impeller is failing?

Common signs include a weak or non-existent "telltale" water stream, engine overheating alarms, and reduced engine performance. It is crucial to address these symptoms immediately to prevent severe engine damage.

How often should I replace my impeller?

For optimal reliability, we recommend replacing the impeller every 200 service hours or annually at the beginning of the boating season, whichever comes first. Usage in sandy or silty water may require more frequent changes.

Will this fit my specific BF8DK2 model?

Yes. The compatibility table confirms this impeller fits all sub-models within the BF8D and BF9.9D series from 2001–2019, including the DK2 variants.

Does this impeller come with a key?

This package contains the impeller only. The impeller key (Honda P/N 90752-ZW9-000) is not included and must be purchased separately if needed.

What is the difference between BF and BFP models?

BF models have a standard gearcase, while BFP (Power Thrust) models have a higher gear ratio for improved thrust on heavier boats. However, both configurations use the same water pump impeller listed here.

Is installation difficult?

Installation is a common DIY task for mechanically inclined individuals and requires basic hand tools. However, improper assembly can lead to engine damage. If you are unsure, professional installation is recommended.

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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