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

🚤 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

• 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

🔄 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
• 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

📦 Condition

• Genuine Yamaha part
• Brand new
• Supplied in original or equivalent packaging