Yamaha - Fuel Pump Assembly - Fuel Delivery System - 6C5-13910-10-00

Overview

When a Yamaha outboard starts hesitating or struggling under load, the fuel pump is often the first place experienced mechanics look. The Yamaha Fuel Pump Assembly 6C5-13910-10-00 is designed to keep fuel moving consistently from the tank to the engine so the motor can run smoothly across the entire throttle range. Over time, diaphragms and internal check valves wear down from heat, vibration, and modern fuels. Replacing the pump with a genuine Yamaha assembly helps restore steady fuel pressure and dependable engine performance.

Key Features

• Consistent Fuel Delivery – Maintains steady fuel flow from the tank to the engine for reliable throttle response.

• OEM Yamaha Engineering – Built to Yamaha specifications for proper fit and dependable performance.

• Durable Marine Construction – Designed to withstand fuel exposure, vibration, and harsh marine environments.

• Direct Replacement Installation – Installs easily in place of the original fuel pump assembly without modification.

• Restores Engine Performance – Helps correct hesitation, rough running, and fuel starvation issues.

Engine & Boat Compatibility

Compatible with select Yamaha outboard engines that utilize this style of mechanical fuel pump assembly.

Refer to manufacturer fitment information to confirm compatibility with your specific Yamaha engine model.

FAQ

Q: What are signs a fuel pump may be failing?
A: Common symptoms include hesitation during acceleration, loss of power, or difficulty starting the engine.

Q: Can a weak fuel pump affect engine performance?
A: Yes. If the pump cannot supply enough fuel, the engine may run lean or struggle under load.

Q: Is replacing the full fuel pump better than rebuilding it?
A: Installing a complete assembly ensures all internal components are new and working correctly.

Q: Does ethanol fuel affect fuel pumps?
A: Ethanol-blended fuels can increase wear on diaphragms and seals over time.

Q: Is installation complicated?
A: Most fuel pump assemblies are straightforward to install with basic tools and proper gasket alignment.

• Supersessions
  6C5-13910-00-00