Yamaha - Fuel Pressure Regulator - Fuel System Component - 63P-13906-00-00

Overview

When fuel pressure isn’t right, the whole engine feels off—either starving for fuel or running too rich. This regulator keeps things balanced so your injectors get a steady, controlled supply. I’ve seen motors smooth right out after replacing a weak regulator that was causing inconsistent pressure. It’s one of those behind-the-scenes parts that makes a big difference in how your engine runs.

Key Features

• Consistent Fuel Pressure Control – Maintains proper fuel pressure for reliable engine performance.
• Genuine Yamaha Fitment – Designed to match factory fuel system specifications precisely.
• Supports Injector Efficiency – Ensures injectors receive steady fuel flow for smooth operation.
• Durable Marine Construction – Built to withstand fuel exposure and harsh marine environments.
• Direct Replacement Design – Installs easily into the existing fuel system without modification.

Engine & Boat Compatibility

Compatible with select Yamaha outboards using this fuel pressure regulator. Verify fitment based on your specific engine model.

FAQ

Q: What are signs of a bad fuel pressure regulator?
A: Rough idle, poor fuel economy, hard starting, or inconsistent engine performance.

Q: Can this cause the engine to run rich or lean?
A: Yes, incorrect pressure can lead to too much or too little fuel being delivered.

Q: Do I need to adjust this after installation?
A: No, it’s typically preset to factory specifications.

Q: Is installation difficult?
A: It’s straightforward, but care should be taken to relieve fuel pressure before removal.

Q: Does ethanol fuel affect this part?
A: Over time, yes—ethanol can contribute to wear if the system isn’t maintained.