6E5-24411-01 Yamaha Diaphragm | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Fuel Pump Pulse Diaphragm - Part Number: 6E5-24411-01

A genuine Yamaha flexible diaphragm for the mechanical fuel pump used on selected V4 and V6 two-stroke outboards.

The diaphragm responds to alternating crankcase pressure and vacuum pulses. Its movement operates the pump valves and transfers fuel through the low-pressure fuel system.

⚙️ Key Features

• Genuine Yamaha OEM fuel-pump diaphragm
• Correct Yamaha part number 6E5-24411-01
• Flexible fuel-resistant diaphragm material
• Services the 6E5-24410 mechanical fuel-pump family
• Sierra diaphragm and complete repair-kit options available

🚤 Compatibility

Commonly used on

• Yamaha 6E5-series mechanical fuel pumps
• V4 and V6 two-stroke crankcase-pulse 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
• Yamaha 300HP V6 applications using pump 6E5-24410
• Yamaha ProV and Excel V6 fuel-pump applications
• Yamaha Saltwater Series carburetted and EFI engines using the 6E5 pump family
• HP Range: 115HP - 300HP
• Engine Type: Yamaha V4 and V6 carburetted / EFI two-stroke outboard
• Year Range: Approximately 1984-2004, dependent on fuel-pump assembly

🔌 Function

The diaphragm converts crankcase pulses into pumping movement that draws fuel into the pump and pushes it toward the engine's fuel-metering system.

⚠️ Common Signs of Failure

• Engine starves for fuel at higher speed
• Primer bulb must be pumped to keep the engine running
• Fuel enters the pulse hose or crankcase
• Engine floods or runs excessively rich
• Diaphragm becomes stiff, split or perforated

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 6E5-24411-01 → Supersedes 6E5-24411-00
• 6E5-24411-00 earlier OEM diaphragm reference
• 6E5-24411-10 related diaphragm reference for selected pump variations

OEM / Related Numbers

• 6E5-24411-01
• 6E5-24411-01-00
• 6E5-24411-00
• 6E5-24411-10
• 6E5-24410-03 related complete fuel pump
• 6E5-24434-02 related pump gasket
• 6E5-24435-01 related pump gasket
• 6E5-24471-00 related diaphragm

Aftermarket / Verified Equivalents

• Sierra: 18-7843
• Sierra: 18-7788 complete fuel-pump repair kit
• Offshore Marine Parts: diaphragm repair kit for the 6E5-24410 pump family
• Aftermarket diaphragm: 6E5-24411-01 replacement

📦 Condition

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