Water Pump Impeller for Honda Outboard Motors – Fits Honda Marine 8-20 HP (Replaces 19210-ZW9-013)

Water Pump Impeller for Honda Outboard Motors – Fits Honda Marine 8-20 HP (Replaces 19210-ZW9-013)

This water pump impeller is designed for Honda Marine 4-stroke outboard motors, including 8, 9.9, and 10 HP models manufactured up to 2000, as well as 8-20 HP models from 2000 and newer. It serves as a direct replacement for several OEM and aftermarket part numbers.

This component is crucial for maintaining proper engine cooling by circulating water through the powerhead. It directly replaces Honda part numbers 19210-ZW9-003 and 19210-ZW9-013, along with Sierra 18-3100 and CEF500347.

• Installation Method: Direct replacement for a straightforward installation.
• Blade Count: Features 6 blades for efficient water circulation.
• Package Includes: 1 x Water Pump Impeller.

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 x Water Pump Impeller (19210-ZW9-013)

Explosion Diagram

Installation Guide

1. Disconnect the negative battery cable to prevent accidental starting.
2. Place a drain pan under the lower unit and remove the gearcase oil drain screw to empty the oil.
3. Remove the bolts securing the lower unit (gearcase) to the outboard's leg and carefully lower it.
4. Unscrew the bolts on the water pump housing cover to access the impeller.
5. Remove the old impeller, taking note of the rotational direction of the existing blades.
6. Clean the inside of the pump housing and inspect the wear plate and housing for grooves or damage. Replace if necessary.
7. Insert the new impeller into the housing. Turn the driveshaft clockwise while pushing down on the impeller to correctly bend the blades.
8. Reinstall the water pump housing cover, ensuring any gaskets are properly aligned, and tighten bolts to the manufacturer's torque specifications.
9. Reinstall the lower unit onto the outboard, making sure the water tube and driveshaft align correctly.
10. Refill the gearcase with the recommended marine gear lubricant before tightening the drain screw.
11. Reconnect the battery, start the engine in water, and confirm there is a steady stream from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my Honda engine?

A: Refer to the "Compatible Engine Models" table above. It lists specific Honda models, horsepower ratings, and years. Ensure your engine details match the table precisely. For 15-20 HP models from 2000 and newer, we recommend verifying the part number against your service manual or original part, as noted in the chart.

Q: What are the signs of a failing impeller?

A: Common signs of a worn or damaged impeller include the engine overheating, a weak or intermittent water stream from the engine's "tell-tale" outlet, or the impeller itself appearing brittle, cracked, or having permanently bent blades upon inspection.

Q: How often should I replace my water pump impeller?

A: As a general maintenance rule, it is recommended to inspect the impeller annually and replace it every 1-2 years or every 100-200 hours of operation. Frequent use in sandy, silty, or saltwater conditions may require more frequent replacement.

Q: Is this an OEM part or an aftermarket replacement?

A: This listing is for a high-quality aftermarket replacement part, not an OEM component. Our parts are manufactured to meet or exceed OEM specifications using comparable materials in an ISO9002-certified facility. Each batch is inspected to ensure consistent performance and reliability.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping, with most orders arriving within 5–15 days worldwide. Standard shipping is free for all orders. Expedited shipping options may be 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 you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard return window for items that are unused and in their original condition. Please see our full policy page or contact us for instructions.

Important Notes

• Verify that the product images and technical specifications match your original part before purchase. If you find any discrepancies—even if your model is listed in the compatibility chart—do not proceed with the installation.
• This product is an aftermarket replacement part and is not an OEM component. All mentions of brand names and part numbers are for reference purposes only.
• Professional installation is recommended to ensure safety and optimal performance. Improper installation can lead to engine damage.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally and adhere to strict quality control standards.
• Fast Global Shipping: We provide free and reliable delivery worldwide, typically within 5–15 days, getting you back on the water sooner.
• Direct from Manufacturer: By eliminating middlemen, we offer competitive pricing without ever compromising on the quality and durability of our parts.