6H3-44352 Water Pump Impeller for Yamaha 40 50 60 70 T50 T60 C40 C50 C55 C60 C70 E60 P40 P50 P60 F40A F40C F45A F50A F50B F50F FT50B FT50C FT50G F60A F60C FT60B FT60D F70A | JLM Marine

Water Pump Impeller for Yamaha 40-70 HP Outboard Motors – Replaces 6H3-44352

This high-quality water pump impeller is designed for Yamaha 2-stroke and 4-stroke outboard engines ranging from 40 HP to 70 HP. It ensures reliable cooling system performance across a wide range of models, including T50, T60, C40, C50, C55, C60, C70, E60, P40, P50, P60, F40A, F40C, F45A, F50A, F50B, F50F, FT50B, FT50C, FT50G, F60A, F60C, FT60B, FT60D, and F70A series engines.

This impeller directly replaces Yamaha OEM part numbers 6H3-44352, 6H3-44352-01, and 697-44352-00, providing a dependable aftermarket solution for maintaining your outboard's water pump system.

• Fits both 2-stroke and 4-stroke Yamaha outboards from 40 HP to 70 HP
• Direct replacement for multiple OEM part numbers
• Essential component for proper engine cooling

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.

Technical Specifications

Package Contents

• 1 × Outboard Water Pump Impeller

Installation Guide

1. Disconnect the fuel line and ensure the engine is completely off and cool before beginning work.
2. Remove the lower unit from the outboard motor following your engine's service manual instructions.
3. Locate and remove the water pump housing, typically secured by several bolts.
4. Carefully extract the old impeller from the pump housing, noting its orientation and direction of the vanes.
5. Inspect the pump housing and plate for cracks, wear, or debris; clean thoroughly if necessary.
6. Apply a thin coat of marine-grade grease to the new impeller vanes and inside the pump housing.
7. Install the new impeller with the vanes oriented in the correct rotation direction (usually matching the old impeller's position).
8. Reassemble the water pump housing, ensuring all seals and gaskets are properly seated.
9. Reattach the lower unit to the outboard motor, tightening all bolts to manufacturer specifications.
10. Reconnect the fuel line and perform a test run in a water tank or on the water to verify proper water flow from the tell-tale.

Troubleshooting & FAQ

Q: How do I know if this impeller fits my specific Yamaha engine?
A: Cross-reference your engine model, horsepower, and year with the compatibility table above. Additionally, verify your original OEM part number matches 6H3-44352, 6H3-44352-01, or 697-44352-00. If you're unsure, consult your engine's service manual or use the Yamaha serial number guide linked above.

Q: How often should I replace my water pump impeller?
A: Most manufacturers recommend replacing the impeller every 2-3 years or every 200-300 hours of operation, whichever comes first. If you frequently operate in sandy or debris-filled water, more frequent replacement may be necessary.

Q: What are the signs that my impeller is failing?
A: Common symptoms include reduced or no water flow from the tell-tale (indicator stream), engine overheating, steam from the engine, or a decrease in cooling system performance. Inspect the impeller immediately if you notice any of these signs.

Q: Can I install this impeller myself, or do I need a professional?
A: If you have basic mechanical skills and the proper tools, you can replace the impeller yourself by following the installation guide and your engine's service manual. However, professional installation is recommended to ensure safety and optimal performance, especially if you're unfamiliar with outboard service.

Q: What's the difference between OEM and aftermarket impellers?
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.