Yamaha - Fuel Pump Diaphragm - Fuel System Component - 68V-24471-10-00

Overview

The fuel pump diaphragm is a critical component inside your Yamaha outboard’s fuel pump, responsible for creating the pressure needed to move fuel from the tank to the engine. As it flexes during operation, it ensures a steady and reliable fuel supply. Over time, diaphragms can wear out, stiffen, or crack, leading to poor fuel delivery, hard starting, or inconsistent performance. Replacing it helps restore proper fuel flow and keeps your engine running smoothly and efficiently.

Key Features

• Fuel Pump Functionality – Creates pressure to move fuel through the system.
• Improves Engine Performance – Helps restore smooth idle, acceleration, and starting.
• OEM Yamaha Construction – Built to factory specifications for durability and proper sealing.
• Essential Service Part – Commonly replaced during fuel pump maintenance or rebuilds.

Engine & Boat Compatibility

Compatible with Yamaha outboards using this diaphragm within the fuel pump system.

FAQ

Q: What does a fuel pump diaphragm do?
A: It flexes to create pressure that moves fuel from the tank to the engine.

Q: What are signs the diaphragm is worn or failing?
A: Hard starting, hesitation, poor fuel delivery, or engine stalling.

Q: Should this be replaced during a fuel pump rebuild?
A: Yes, it’s one of the most important components to replace.

Q: Can a bad diaphragm affect engine performance?
A: Yes, it can cause inconsistent fuel flow and poor engine operation.

Q: Is installation difficult?
A: It’s typically replaced during fuel pump service and requires basic mechanical knowledge.