6E5-24471-00 Yamaha Fuel Pump Diaphragm | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Fuel Pump Valve Diaphragm - Part Number: 6E5-24471-00

A genuine Yamaha flexible diaphragm for selected 6E5-series mechanical fuel pumps.

The diaphragm forms part of the pumping and valve chamber, responding to pump-body pressure changes while directing fuel through the inlet and outlet passages.

⚙️ Key Features

• Genuine Yamaha OEM fuel-pump diaphragm
• Correct Yamaha part number 6E5-24471-00
• Fuel-resistant flexible diaphragm construction
• Used in Yamaha V4 and V6 mechanical fuel pumps
• Sierra direct replacement diaphragm available

🚤 Compatibility

Commonly used on

• Yamaha 6E5-series mechanical diaphragm fuel pumps
• V4 and V6 two-stroke low-pressure fuel systems

Typically suits

• Engine models:
• Yamaha 115HP V4 two-stroke
• Yamaha 130HP V4 two-stroke
• Yamaha 150HP V6 two-stroke
• Yamaha 175HP V6 two-stroke
• Yamaha 200HP V6 two-stroke
• Yamaha 225HP V6 two-stroke
• Yamaha 250HP V6 two-stroke
• Selected Yamaha 300HP V6 two-stroke applications
• Yamaha ProV, Excel and Saltwater Series engines using pump 6E5-24410
• HP Range: 115HP - 300HP
• Engine Type: Yamaha V4 and V6 carburetted / EFI two-stroke outboard
• Year Range: Approximately 1984-2004, dependent on fuel-pump design

🔌 Function

The diaphragm moves and seals within the pump chamber, helping the one-way valves draw fuel into the pump and discharge it toward the carburettors or low-pressure fuel rail.

⚠️ Common Signs of Failure

• Engine starves for fuel at high speed
• Fuel leaks through the pump pulse connection
• Engine floods or runs rich
• Primer bulb must be pumped while operating
• Diaphragm becomes perforated, stiff or distorted

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6E5-24471-00 current OEM diaphragm reference
• 6E5-24471-01 related later diaphragm reference for selected pump configurations

OEM / Related Numbers

• 6E5-24471-00
• 6E5-24471-00-00
• 6E5-24471-01
• 6E5-24410-03 related complete fuel pump
• 6E5-24411-01 related pulse diaphragm
• 6E5-24434-02 related pump-body gasket
• 6E5-24435-01 related body gasket 2

Aftermarket / Verified Equivalents

• Sierra: 18-7842
• Sierra: supplied in 18-7788 fuel-pump repair kit
• Recmar-style diaphragm: 6E5-24471-00 replacement
• Aftermarket fuel-pump membrane: 6E5-24471-00 replacement

📦 Condition

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