Water Pump Impeller – Fits Mercury/Honda 30-300 HP (Replaces 47-43026Q02)

Water Pump Impeller – Fits Mercury/Honda 30-300 HP (Replaces 47-43026Q02)

This water pump impeller is a direct replacement for a wide range of Mercury, MerCruiser, and Honda outboard motors. It is designed to meet or exceed original equipment specifications, ensuring reliable performance for your engine's cooling system.

Direct Replacements: Mercury 47-43026Q02, 43026T2, 430261, 430262, 430264, 43026B2, 8M002570; Honda 19210-ZW1-303, 19210-ZW1-003; OMC 0775467; Sierra 18-3056; GLM 89630; CEF 500301.

• Engine compatibility includes Mercury/MerCruiser (30–300 HP, 2 & 4-Stroke) and Honda (75–90 HP, 4-Stroke).
• Installation is a direct replacement for the original part.
• Package includes one impeller and a drive key.

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. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Water Pump Impeller (47-43026Q02)
• 1 x Impeller Key

Installation Guide

1. Disconnect Power: Disconnect the battery before starting work.
2. Remove Lower Unit: Unbolt and remove the lower unit (gearcase) from the outboard motor.
3. Access Pump: Locate and remove the bolts securing the water pump housing.
4. Replace Impeller: Remove the old impeller, taking note of the vane orientation. Clean the housing interior and install the new impeller. A light coat of marine grease can ease installation.
5. Reassemble Pump: Secure the water pump housing with its bolts, ensuring all seals are correctly seated.
6. Reinstall Lower Unit: Re-attach the lower unit to the engine.
7. Test Operation: Start the engine in water to verify a strong, steady stream from the tell-tale outlet, confirming proper installation.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?

A: This impeller fits a wide range of Mercury/MerCruiser models from 30-300 HP and Honda models from 75-90 HP. Please review the "Compatible Engine Models" table to verify your specific model is listed. For Mercury owners, we recommend using the Mercury Serial Number Guide to confirm your engine details.

Q: What are the signs of a failing water pump impeller?

A: Common signs include the engine overheating, a weak or inconsistent water stream from the "tell-tale" outlet, or a complete lack of water flow. Upon inspection, you might find the old impeller has brittle, cracked, or broken rubber vanes.

Q: How often should I replace my impeller?

A: As a crucial part of preventative maintenance, we recommend inspecting your impeller annually and replacing it every 1-2 years. Replacement frequency may depend on hours of use and operating conditions (e.g., more frequent changes are advised for boats used in saltwater or sandy/silty water).

Q: OEM vs. Aftermarket?

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.