Water Pump Impeller – Fits Yamaha 225HP/250HP/300HP 4-Stroke Outboards (Replaces 6CE-44352-00-00/6CE-44352-01/6CE-44352-03)

Water Pump Impeller – Fits Yamaha 225HP/250HP/300HP 4-Stroke Outboards

This aftermarket water pump impeller is designed for Yamaha F225, F250, and F300 4.2L V6 4-stroke outboard engines (2006 and later models). It serves as a direct replacement for the original impeller within the OEM water pump housing, engineered to meet or exceed original equipment specifications.

This component is a direct replacement for multiple OEM and aftermarket part numbers, ensuring wide compatibility with specified Yamaha outboard models.

• Installation Method: Direct replacement in OEM water pump housing
• Material: Durable neoprene and plastic construction for reliable performance
• Required Rotation: Clockwise rotation is necessary for proper operation

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 x Water Pump Impeller (Replaces Yamaha P/N: 6CE-44352-00-00, 6CE-44352-01, 6CE-44352-03)

Installation Guide

Professional installation is recommended. These are general instructions; always consult your service manual.

1. Disconnect the battery and shift the outboard into neutral.
2. Remove the bolts securing the lower unit (gearcase) and carefully lower it from the engine.
3. Locate the water pump on the gearcase and remove the bolts from the pump housing.
4. Slide the housing off and remove the old impeller. Note the direction of the blades, as the new ones must curve the same way.
5. Clean and inspect the inside of the housing and the wear plate for damage or deep grooves.
6. Install the new impeller by sliding it onto the driveshaft. Turn the shaft clockwise while pushing down to help fold the blades correctly into the housing.
7. Reinstall the pump housing, ensuring all seals are correctly positioned, and torque bolts to spec.
8. Guide the lower unit back into place, aligning the driveshaft, shift shaft, and water tube. Secure all bolts.
9. Reconnect the battery, start the engine with a proper water supply, and confirm a strong, steady stream from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my specific Yamaha model?
A: First, check your engine model and year against the comprehensive 'Compatible Engine Models' table on this page. Second, visually compare the product images and dimensions (Overall Diameter: 90 mm, Shaft Diameter: 24.6 mm) with your existing part before ordering.

Q: What are the common signs that my water pump impeller needs to be replaced?
A: The most common signs of a failing impeller are an overheating engine alarm or a weak, inconsistent, or non-existent water stream from the 'tell-tale' outlet on the side of your outboard.

Q: How often should I replace the impeller?
A: For preventative maintenance, it is recommended to replace your outboard's water pump impeller annually or every 100 hours of operation, whichever comes first. This can prevent unexpected failure and potential engine damage from overheating.

Q: Why is the clockwise rotation important?
A: The impeller blades are designed to flex in a specific direction to pump water efficiently. For this model, they must be installed to flex in a clockwise direction as the driveshaft spins; installing it backward will result in no water flow and will quickly lead to engine overheating.

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.