Yamaha - Fuel Pump Diaphragm - Fuel System Component - 68V-24411-00-00

Overview

The fuel pump diaphragm is a small but essential component that keeps fuel moving through your Yamaha outboard’s fuel system. It flexes inside the pump to create the pressure needed to deliver fuel to the engine. Over time, diaphragms can wear out, harden, or crack, leading to poor fuel flow, hard starts, or inconsistent performance. Replacing it helps restore proper fuel delivery and keeps your engine running smooth and reliable.

Key Features

• Fuel Pump Functionality – Helps regulate fuel movement through the pump for consistent delivery.
• Improves Engine Performance – Restores smooth idle, throttle response, and starting.
• OEM Yamaha Construction – Built to factory specifications for durability and proper sealing.
• Essential Maintenance Part – Commonly replaced during fuel pump 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?
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 performance?
A: Yes, it can cause inconsistent fuel flow and poor engine operation.

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