19210-ZW9-A31 Outboard Impeller for Honda BF8D1 D2 D3 BFP8B1 B2 D1 D2 D3 BF9 9DK2 BFP9 9D D1 D2 BF10D2 D4 DK2 BFP10B1 B2 D2 BF15D3 DK2 DK3 BFPD1 BF20D3 DK2 DK3 | JLM Marine

19210-ZW9-A31 Outboard Impeller for Honda BF8D1 D2 D3 BFP8B1 B2 D1 D2 D3 BF9 9DK2 BFP9 9D D1 D2 BF10D2 D4 DK2 BFP10B1 B2 D2 BF15D3 DK2 DK3 BFPD1 BF20D3 DK2 DK3

This high-quality aftermarket impeller is designed to fit a wide range of Honda outboard engines from 8HP to 20HP, including the BF8, BFP8, BF9, BFP9, BF10, BFP10, BF15, and BF20 series. Engineered for reliable cooling system performance, this impeller ensures optimal water flow to protect your engine from overheating.

Direct replacement for OEM part number 19210-ZW9-A31, this impeller provides dependable performance across multiple Honda model variants including D1, D2, D3, DK2, DK3, B1, and B2 series engines.

• Fits Honda outboard engines 8HP through 20HP across multiple series
• Precision-manufactured to meet OEM specifications
• Essential component for engine cooling system maintenance

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 × Outboard Impeller

Installation Guide

1. Disconnect the battery and ensure the engine is completely cool before beginning work.
2. Remove the lower unit from the outboard motor according to your engine's service manual.
3. Locate and remove the water pump housing cover, typically secured by several bolts.
4. Carefully extract the old impeller from the pump housing, noting its orientation and direction of blade curvature.
5. Clean the pump housing thoroughly, removing any debris, old gasket material, or residue.
6. Inspect the pump housing and cam for wear, scoring, or damage that could affect the new impeller's performance.
7. Lubricate the new impeller blades with water pump grease or glycerin to ease installation and prevent dry starting.
8. Install the new impeller into the housing, ensuring the blades curve in the correct direction of rotation.
9. Replace the water pump housing cover with a new gasket, tightening bolts in a cross pattern to manufacturer specifications.
10. Reassemble the lower unit to the outboard, ensuring all seals and alignment marks are properly positioned.
11. Reconnect the battery and test the cooling system by running the engine in water, checking for proper water discharge.
12. Monitor engine temperature during the first few runs to confirm the impeller is functioning correctly.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my Honda engine?
A: Cross-reference your engine model with the compatibility table above. Verify your model number matches one of the listed variants (BF8D1-D3, BFP8, BF9, BFP9, BF10, BFP10, BF15, BF20 series). Additionally, confirm the OEM part number 19210-ZW9-A31 matches your original impeller.

Q: How often should I replace my outboard impeller?
A: Most marine professionals recommend replacing your impeller annually or every 200-300 hours of operation, whichever comes first. If you operate in sandy or debris-filled water, inspect it more frequently. Signs of wear include cracked blades, missing pieces, or reduced water flow from the tell-tale.

Q: What are the signs that my impeller is failing?
A: Common symptoms include weak or no water discharge from the tell-tale indicator, engine overheating, steam from the engine, reduced water pressure, or unusual noises from the lower unit. If you notice any of these signs, inspect and replace the impeller immediately to prevent engine damage.

Q: Can I install this impeller myself or do I need a mechanic?
A: If you have mechanical experience and the proper tools, you can replace the impeller yourself by following the service manual. However, the process requires removing the lower unit, which can be challenging for first-timers. Professional installation is recommended to ensure proper assembly and avoid potential issues.

Q: Is this an OEM impeller or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.