Stainless Steel Outer Plate – Fits Parsun/Hidea/Yamaha 9.9HP/15HP 2-Stroke Outboard Water Pumps (Replaces 63V-44323-00)

Stainless Steel Outer Plate – Fits Parsun/Hidea/Yamaha 9.9HP/15HP 2-Stroke Outboard Water Pumps (Replaces 63V-44323-00)

This stainless steel outer plate is a crucial component for the water pump assembly, designed for a range of 2-stroke outboard motors. It fits specific 9.9HP and 15HP models from Parsun, Hidea, and Yamaha (1996 and newer).

It serves as a direct replacement for OEM part numbers Yamaha 63V-44323-00, Parsun 63V-44323-00, and Hidea 63V-44323-00, ensuring proper fit and function for your engine's cooling system.

• Installation: Direct replacement for the original plate.
• Material: Constructed from durable, corrosion-resistant stainless steel.
• Compatibility: Designed for use in gasoline outboard motor lower units.

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 using the tables 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.

Yamaha Models

Parsun & Hidea Models

Technical Specifications

Package Contents

This package includes the following component:

• 1 × Stainless Steel Outer Plate (Replaces OEM 63V-44323-00)

Installation Guide

Always consult your engine's service manual before beginning work. The general steps for replacement are:

1. Disconnect the Battery: Ensure the engine cannot be started accidentally.
2. Position the Engine: Tilt the engine up and secure it.
3. Drain Gearcase Lube: Place a drain pan under the lower unit and remove the drain and vent screws.
4. Remove the Lower Unit: Unbolt the lower unit (gearcase) from the upper engine housing. This may require disconnecting the shift shaft.
5. Access the Water Pump: The water pump housing is located on top of the lower unit. Remove the bolts securing its cover.
6. Replace the Outer Plate: Lift off the impeller and old outer plate. Inspect for wear, scoring, or corrosion. Place the new stainless steel outer plate onto the housing.
7. Reassemble the Pump: Reinstall the impeller, housing cover, and bolts, ensuring correct alignment.
8. Reinstall the Lower Unit: Carefully guide the lower unit back into place, aligning the driveshaft, water tube, and shift shaft. Secure the bolts to the manufacturer's specified torque.
9. Refill Gearcase Lube: Pump new marine gear lube into the lower drain hole until it seeps out of the upper vent hole. Reinstall the vent and drain screws.
10. Test Operation: Reconnect the battery. Start the engine in a test tank or with a flusher attached to verify a strong, steady stream of water from the tell-tale port.

Troubleshooting & FAQ

How do I confirm this outer plate fits my engine?
Start by checking the compatible models lists for Yamaha, Parsun, and Hidea. The most reliable method is to cross-reference your existing part number with the OEM number 63V-44323-00 listed in the "Part Number Cross-Reference" table.

What are the signs that a water pump outer plate needs replacement?
Common signs of a failing water pump system include a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alarms, and visible damage like scoring, warping, or corrosion on the plate itself during an inspection.

How often should the water pump components be inspected or replaced?
As a general maintenance guideline, the entire water pump assembly, including the impeller and plates, should be inspected annually and typically replaced every 2-3 years or 200-300 hours of use, whichever comes first. This interval can vary based on operating conditions (e.g., saltwater vs. freshwater).

Is this a genuine Yamaha, Parsun, or Hidea part?
This is a high-quality aftermarket replacement part, not an OEM component. It is manufactured to meet or exceed original equipment specifications for fit, form, and function, using corrosion-resistant stainless steel for enhanced durability.

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.