Water Pump Impeller Kit – Fits Yamaha 2.5HP, 3HP (Replaces 6L5-44352-00)

Water Pump Impeller Kit – Fits Yamaha 2.5HP, 3HP (Replaces 6L5-44352-00)

This water pump impeller kit is designed for Yamaha 2.5–3 HP outboard motors, including 4-Stroke (F2.5A, F2.5B) and 2-Stroke (3A/Malta) models from 1988–2021. It is also compatible with select 2-3 HP Parsun 2-Stroke and 4-Stroke outboards.

This component is a direct replacement for several OEM and aftermarket part numbers, ensuring a precise fit and reliable performance. Please verify your specific engine model and part number before ordering.

• Installation: Designed as a direct OEM replacement.
• Materials: Features a durable neoprene rubber impeller with a brass shaft sleeve for corrosion resistance.
• 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. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Confirm your engine model/year in the table below.

Yamaha Outboard

Parsun Outboard

Technical Specifications

Package Contents

• 1 x Water Pump Impeller (Replaces 6L5-44352-00-00/6L5-44352-01-00)

Installation Guide

1. Prepare the Engine: Disconnect the battery and spark plug wire for safety. Place the engine in a stable, upright position.
2. Remove Lower Unit: Unbolt and carefully detach the lower gearcase unit from the outboard's upper section.
3. Access the Pump: Locate and unbolt the water pump housing cover to expose the old impeller.
4. Remove Old Impeller: Note the rotational direction of the old impeller vanes. Pry or pull the old impeller off the driveshaft. Remove the impeller key.
5. Clean and Inspect: Clean any debris or corrosion from the housing, wear plate, and cover. Inspect for deep grooves or damage.
6. Install New Impeller: Lightly grease the housing interior. Insert the new impeller key and slide the new impeller onto the shaft, twisting it in the direction of engine rotation to bend the vanes correctly.
7. Reassemble: Secure the water pump housing cover with its bolts, ensuring a proper seal.
8. Reinstall Lower Unit: Guide the lower unit back into place, aligning the driveshaft, shift shaft, and water tube. Bolt it securely.
9. Test Operation: Reconnect the spark plug and use a water source (flushing muffs) to run the engine at idle. Confirm a steady stream of water from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?

A: The best way is to check your original part number against our "Part Number Cross-Reference" table. Also, review the "Compatible Engine Models" table to ensure your specific model and year range are listed.

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

A: Common symptoms include a weak or non-existent water stream from the tell-tale (water pressure indicator), and the engine showing signs of overheating, which can trigger an alarm or cause performance issues.

Q: How often should I replace the impeller?

A: For preventative maintenance, it is highly recommended to replace the impeller annually or every 100 hours of use, whichever comes first. This is especially important for boats used in saltwater or sandy/silty conditions.

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.