6H3-44352-00 Yamaha Impeller | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Water Pump Impeller - Part Number: 6H3-44352-00

A genuine Yamaha flexible water-pump impeller for selected 40HP to 70HP two-stroke and four-stroke outboards.

The impeller rotates inside the lower-unit pump housing to draw cooling water through the gearcase inlet and circulate it through the engine.

⚙️ Key Features

• Genuine Yamaha OEM water-pump impeller
• Correct Yamaha part number 6H3-44352-00
• Approximate dimensions: 18.05mm bore, 51.8mm outside diameter and 19mm width
• Used on Yamaha 40HP to 70HP water-pump systems
• Sierra, Recmar, HJumbo and Mercury-compatible replacements available

🚤 Compatibility

Commonly used on

• Yamaha mid-range two-stroke and four-stroke lower-unit water pumps

Typically suits

• Engine models:
• Yamaha 25B - approximately 1994-1995
• Yamaha 40F, 40V and 40Y
• Yamaha 50G and 50H
• Yamaha 55B
• Yamaha 60C and 60F through approximately 2003
• Yamaha 70B through approximately 2003
• Yamaha 70C
• Yamaha F40A, F40C, F40D and F40G
• Yamaha F50A, F50B, F50D and F50F
• Yamaha FT50B, FT50C, FT50G and FT50J
• Yamaha F60A and F60C
• Yamaha FT60B and FT60D
• Yamaha F70A and F70L applications using the 6H3 impeller
• HP Range: 40HP - 70HP, plus selected 25B engines
• Engine Type: Yamaha two-stroke and four-stroke outboard
• Year Range: Approximately 1984 - 2017, dependent on lower-unit design

🔌 Function

The impeller creates the suction and pressure needed to circulate cooling water through the engine.

⚠️ Common Signs of Failure

• Weak or absent tell-tale stream
• Engine overheats at idle or under load
• Impeller blades become cracked, stiff or missing
• Rubber fragments are found in cooling passages
• Cooling flow remains poor after clearing the water inlet

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6H3-44352-00 current Yamaha OEM impeller reference
• 697-44352-00 equivalent Yamaha impeller reference

OEM / Related Numbers

• 6H3-44352-00
• 6H3-44352-00-00
• 6H3443520000
• 697-44352-00
• 697-44352-00-00
• 6H3-W0078-01 related water-pump kit
• 6H3-W0078-02 related water-pump kit
• 692-W0078-series related pump-kit family

Aftermarket / Verified Equivalents

• Sierra: 18-3069
• Recmar: REC6H3-44352-00
• HJumbo: J-183
• QuickMarine: 6H3-44352 replacement impeller
• Mercury / Mariner-compatible replacement for Yamaha 697-44352-00 applications

📦 Condition

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