# 63V-44352-01 Yamaha Impeller | Genuine OEM Yamaha Outboard Part

🔧 Product Description

  

Genuine Yamaha Water Pump Impeller - Part Number: 63V-44352-01-00

  

A genuine Yamaha OEM water pump impeller used in Yamaha 8HP, 9.9HP, 15HP and selected 20HP outboard lower-unit water pump assemblies. This impeller is a key cooling-system service part and is included in Yamaha 63V water pump kit families.

  

⚙️ Key Features

  

• Genuine Yamaha OEM impeller

• Correct Yamaha part number 63V-44352-01-00

• Supersedes / relates to 63V-44352-00-00

• Cross-references with Sierra 18-3040 and Mallory 9-45607

• Used on Yamaha small-outboard water pump assemblies

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 63V-44352-01-00 later Yamaha impeller reference

• 63V-44352-00-00 earlier Yamaha impeller reference

• 63V-W0078-01-00 related Yamaha water pump repair kit reference

  

OEM / Related Numbers:

  

• 63V-44352-01-00

• 63V-44352-01

• 63V443520100

• 63V4435201

• 63V-44352-00-00

• 63V-44352-00

• 63V443520000

• 63V4435200

• 63V-W0078-01-00

• 63V-W0078-01

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-3040

• Mallory: 9-45607

• CEF: 500363

• Outboard Spares: OSI63V

• Repower Marine: RM3040

• Aftermarket reference: HJ J-181

• Aftermarket reference: 63V-44352-01 / 63V-44352-00

• Water pump impeller replacement for Yamaha 8HP / 9.9HP / 15HP / 20HP applications where this impeller is specified

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha small outboard water pump assemblies

• Yamaha 63V-series lower-unit cooling systems

• Yamaha 63V-W0078-01 water pump kit applications

  

Typically suits:

  

• Engine models:

• Yamaha 8HP applications where 63V-44352-01 is specified

• Yamaha T8 applications where specified

• Yamaha 9.9F two-stroke water pump applications

• Yamaha 9.9MSH / 9.9MLH water pump applications where specified

• Yamaha 15F two-stroke water pump applications

• Yamaha 15MSH / 15MLH water pump applications where specified

• Yamaha F15 four-stroke water pump applications where specified

• Yamaha F20 four-stroke water pump applications where specified

• Yamaha 9.9HP two-stroke applications from approximately 1996 onward

• Yamaha 15HP two-stroke applications from approximately 1996 onward

• Yamaha 15HP four-stroke applications from approximately 1998 onward

• Yamaha 20HP four-stroke applications from approximately 2007 onward

  

• HP Range: commonly 8HP - 20HP where specified

• Engine Type: Yamaha two-stroke and four-stroke small outboard lower-unit water pump

• Year Range: model-specific, commonly late-1990s through 2010s depending on model

• Component Type: Water pump impeller

  

🔌 Function

  

The impeller draws cooling water from the lower-unit intake and pushes it through the engine cooling passages to control engine temperature.

  

Common signs of failure or service need:

  

• Weak tell-tale water flow

• Engine overheating

• Temperature alarm

• Impeller blades cracked, missing or permanently bent

• Dry-running damage

• Poor cooling pressure at idle

• Water pump service due at maintenance interval

• Debris, sand or salt damage inside pump housing

  

📦 Condition

  

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 39.6 AUD
- **Vendor:** Yamaha
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.60 AUD | In stock |

## Images

- 63V-44352-01 Yamaha Impeller | Genuine OEM Yamaha Outboard Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/63v-44352-01-impeller)
> Updated: 2026-07-11