6CJ-44323-00 Water Pump Wear Plate for Yamaha F40G F70 F70A | JLM Marine

Water Pump Wear Plate – Fits Yamaha 4-Stroke F40G, F70, F70A Outboards

This water pump wear plate is engineered for Yamaha 4-stroke outboard engines, including the F40G and F70/F70A series. It provides reliable protection for your water pump assembly, ensuring efficient cooling system operation and extended service life.

This aftermarket component directly replaces Yamaha OEM part number 6CJ-44323-00-00, delivering a cost-effective solution without compromising performance or durability.

• Designed for Yamaha 4-stroke outboard models F40G, F70, and F70A
• Precision-manufactured to OEM specifications for proper fitment
• Essential component for maintaining water pump efficiency

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 × Water Pump Wear Plate

Installation Guide

1. Disconnect the engine's fuel line and remove the battery cables to ensure safe working conditions.
2. Remove the lower unit from the outboard motor following your engine's service manual procedures.
3. Disassemble the water pump housing by removing the retaining bolts and carefully separating the components.
4. Remove the old wear plate from the pump housing, cleaning any residual gasket material or debris from the mating surface.
5. Inspect the water pump impeller, housing, and related components for wear or damage; replace as necessary.
6. Position the new wear plate onto the pump housing, ensuring proper alignment with the mounting holes.
7. Reassemble the water pump components in reverse order, using new gaskets and O-rings where applicable.
8. Reinstall the lower unit onto the outboard, torquing all fasteners to manufacturer specifications.
9. Reconnect the battery cables and fuel line.
10. Test the cooling system by running the engine in a tank or on muffs, verifying proper water flow from the telltale indicator.

Troubleshooting & FAQ

Q: How do I confirm this wear plate fits my Yamaha outboard?
A: Check the compatible engine models table above and compare your engine model number with the listed F40G, F70, and F70A variants. You can also verify fitment using the Yamaha parts diagrams linked in the compatibility section.

Q: How often should I replace the water pump wear plate?
A: It's recommended to inspect and replace the wear plate during every water pump impeller service, typically every 2–3 years or 200–300 hours of operation, whichever comes first.

Q: What are the signs that my wear plate needs replacement?
A: Common symptoms include reduced water flow from the telltale, engine overheating, weak cooling system performance, or visible scoring and wear on the plate surface during routine inspection.

Q: Can I reuse the old wear plate if it looks okay?
A: No, wear plates are designed as consumable components. Even minor surface wear can reduce pump efficiency and lead to premature impeller failure, so replacement is recommended during every pump service.

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.