6GR-44352 Water Pump Impeller for Yamaha XF | JLM Marine

Water Pump Impeller – Fits Yamaha XF 425 HP & 450 HP Outboards

This outboard water pump impeller is engineered to fit Yamaha XF 425 HP and Yamaha XF 450 HP marine outboard motors. Designed as a direct replacement for OEM part number 6GR-44352-00-00, this aftermarket impeller ensures reliable cooling system performance for high-horsepower Yamaha engines.

This impeller directly replaces Yamaha OEM part numbers 6GR-44352-00-00 and 6GR-44352-00, providing seamless compatibility with your factory water pump housing.

• Includes impeller with key/pin for secure installation
• Precision-molded rubber construction for durability
• Direct-fit replacement for Yamaha XF series high-performance outboards

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

• Water Pump Impeller with Key/Pin

Installation Guide

1. Disconnect power: Ensure the engine is off and the battery is disconnected before beginning work.
2. Access the water pump: Remove the lower unit or pump housing according to your engine's service manual.
3. Remove the old impeller: Carefully extract the worn impeller from the pump housing, noting its orientation.
4. Clean the housing: Inspect and clean the pump housing, checking for debris or damage.
5. Lubricate the new impeller: Apply a generous amount of water-resistant grease to the new impeller blades.
6. Install the key/pin: Insert the drive key or pin into the impeller shaft slot as directed.
7. Insert the impeller: Rotate the impeller blades in the correct direction (typically clockwise) and slide it into the housing.
8. Reassemble components: Replace the pump cover, gasket, and lower unit, ensuring all fasteners are torqued to specification.
9. Test the system: Reconnect the battery, start the engine in water, and verify proper water flow from the tell-tale outlet.

Troubleshooting & FAQ

How do I confirm this impeller fits my Yamaha XF engine?
Verify your engine's model and horsepower against the compatibility table above. Check your existing impeller's OEM part number (6GR-44352-00-00 or 6GR-44352-00) to ensure a direct match. If uncertain, consult your engine's service manual or parts diagram.

How often should I replace my water pump impeller?
Most manufacturers recommend replacing the impeller every 2–3 years or 200–300 hours of operation, whichever comes first. If you notice overheating, reduced water flow from the tell-tale, or visible cracking/wear on the impeller blades, replace it immediately.

What are the signs of a failing water pump impeller?
Common symptoms include engine overheating, weak or absent water stream from the tell-tale outlet, steam from the engine, and reduced performance. Inspect the impeller if you experience any of these issues.

Does this impeller come with installation hardware?
Yes, this package includes the impeller with the drive key/pin. Gaskets, O-rings, and other pump rebuild components are typically sold separately and should be replaced during installation.

OEM vs. Aftermarket – what's the difference?
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.

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

What is your warranty and return policy?
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.