68T-44352-00 Water Pump Impeller for Yamaha F6 F8 F9.9 | JLM Marine

68T-44352-00 Water Pump Impeller for Yamaha F6 F8 F9.9

This high-quality water pump impeller is designed to fit Yamaha 4-stroke outboard motors rated at 6 HP (F6), 8 HP (F8), and 9.9 HP (F9.9). Engineered for reliable cooling performance, this impeller ensures your engine operates at optimal temperature during use.

This aftermarket replacement directly replaces Yamaha OEM 68T-44352-00, 68T-44352-01, and 68T-44352-02, as well as equivalent part numbers from CEF Marine, Sierra Marine, and Mallory Marine. It is manufactured from premium neoprene rubber and hardened nylon for long-lasting durability and resistance to marine conditions.

• Package includes: Water pump impeller with key/pin
• 6-blade design for efficient water flow and cooling
• Precision-engineered to OEM specifications for reliable fitment

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 the fuel line and remove the engine cowling to access the lower unit. Ensure the engine is completely cooled before proceeding.
2. Remove the lower unit by unscrewing the mounting bolts. Carefully separate it from the mid-section housing.
3. Locate the water pump housing on the lower unit. Remove the screws or bolts securing the pump housing cover.
4. Extract the old impeller carefully, noting the direction of the blade curvature. Inspect the housing and plate for wear or damage.
5. Clean the impeller housing thoroughly, removing any debris, old gasket material, or corrosion.
6. Apply a thin layer of water-resistant marine grease to the new impeller blades and inner housing surface.
7. Insert the key/pin into the drive shaft slot first. Align the impeller hub with the key before installation.
8. Gently rotate the impeller clockwise while pushing it into the housing, ensuring the blades bend in the correct direction.
9. Install a new gasket and replace the pump housing cover, tightening bolts in a cross pattern to ensure even pressure.
10. Reattach the lower unit to the mid-section, aligning the drive shaft and water tube correctly. Secure all mounting bolts.
11. Reinstall the engine cowling and reconnect the fuel line. Run the engine in a test tank or on muffs to verify proper water flow.
12. Check for leaks around the pump housing and confirm steady water discharge from the tell-tale indicator.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my Yamaha engine?
A: Check the compatibility table above for your engine model, horsepower, and year range. You can also cross-reference your original OEM part number (68T-44352-00, 68T-44352-01, or 68T-44352-02) with the part number table provided.

Q: How often should I replace my water pump impeller?
A: Most manufacturers recommend replacing the impeller every 2–3 years or 200–300 operating hours, whichever comes first. If you notice overheating, reduced water flow from the tell-tale, or visible blade damage, replace it immediately.

Q: What are the signs that my impeller is failing?
A: Common symptoms include engine overheating, weak or no water stream from the tell-tale indicator, steam from the engine, or loss of power. Inspect the impeller annually and replace if blades are cracked, broken, or missing.

Q: Does this impeller come with the key/pin?
A: Yes, this package includes the water pump impeller with the key/pin required for proper installation onto the drive shaft.

Q: Can I install this impeller myself?
A: If you have mechanical experience and the proper tools, you can install it yourself by following the installation guide. However, professional installation is recommended to ensure correct alignment and avoid damage to the water pump or lower unit.

Q: Is this an OEM part or 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.