Yamaha - Fuel Pump Diaphragm - Fuel System Component - 66M-24411-01-00 

Overview

The fuel pump diaphragm is a critical component within the Yamaha outboard fuel system, designed to regulate fuel movement through pressure changes during engine operation. These diaphragm variations ensure consistent fuel delivery by flexing to create the necessary suction and pressure within the fuel pump. Built to OEM specifications, they provide precise fit, reliable performance, and durability in marine environments.

Key Features

• Fuel Flow Regulation – Controls fuel movement for steady and efficient delivery to the engine.
• Fuel Pump Operation Support – Flexes with pressure changes to maintain proper fuel flow.
• OEM Yamaha Construction – Manufactured to factory standards for accurate fit and dependable performance.
• Durable Flexible Material – Designed to withstand fuel exposure and continuous operation.

Engine & Boat Compatibility

• Compatible with Yamaha outboards that utilize diaphragm part numbers 66M-24411-01-00 within the fuel pump assembly.

FAQ

Q: What does a diaphragm do in a fuel pump?
A: It flexes to create pressure changes that move fuel through the system.

Q: Why are there multiple part numbers?
A: Different versions may correspond to specific models or revisions within the same engine family.

Q: What happens if the diaphragm fails?
A: It can cause poor fuel flow, leading to engine hesitation, stalling, or starting issues.

Q: When should it be replaced?
A: It should be replaced if worn, cracked, or during routine fuel pump maintenance.

Q: Are these OEM Yamaha parts?
A: Yes, both are manufactured to Yamaha’s original equipment standards.

• Supersessions
  66M-24411-00-00, 66M-24411-02-00, 66M-24411-02-00