Fuel Pump Assembly – Fits Yamaha Outboard 115-300 HP 2-Stroke (Replaces 6E5-24410-03-00, 6E5-24410-04-00)

Fuel Pump Assembly – Fits Yamaha Outboard 115-300 HP 2-Stroke (Replaces 6E5-24410-03-00, 6E5-24410-04-00)

This fuel pump assembly is designed for a wide range of Yamaha 2-Stroke outboard engines from 1984 to 2004, including models from 115HP up to 300HP. It serves as a direct, reliable replacement for your original factory pump, ensuring proper fuel delivery and engine performance.

This component is a direct replacement for multiple Yamaha and aftermarket part numbers, making it a versatile solution for many popular engine models. Manufactured to meet or exceed OEM specifications, it ensures a precise fit and straightforward installation.

• Installation Method: Installs as a direct OEM-style replacement.
• Included Components: Comes as a complete assembly with all necessary gaskets and diaphragms for a full replacement.
• Fuel Compatibility: Designed for use with Gasoline.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Fuel Pump Assembly (6E5-24410-03-00)
• 1 x Body Gasket (6E5-24434-02-00)
• 1 x Body Gasket (6E5-24435-00-00)
• 1 x Diaphragm (6E5-24471-00-00)
• 1 x Diaphragm Spring (6E5-24423-00-00)
• 1 x Check Valve (6A0-24421-01-00)
• 1 x Spring Seat (648-24424-00-00)
• 1 x Body (6E5-24413-00-00)
• 1 x Body (6E5-24412-02-00)
• 1 x Diaphragm (6E5-24411-00-00)
• 1 x Plate Washer (92990-05600-00)
• 1 x Nut (95380-03600-00)
• 1 x Pan Head Screw (6A0-14325-00-00)
• 1 x Pan Head Screw (98580-05035-00)

Installation Guide

For a safe and effective installation, follow these general steps. Professional installation is recommended.

1. Safety First: Disconnect the battery and work in a well-ventilated area away from any open flames or sparks.
2. Access the Pump: Remove the engine cowling to access the existing fuel pump.
3. Relieve Pressure: Carefully relieve any pressure in the fuel system. Place rags under the pump to catch any spilled fuel.
4. Disconnect Lines: Identify and clamp the fuel inlet and outlet lines. Disconnect them from the pump assembly.
5. Remove Old Pump: Unscrew the mounting bolts holding the old fuel pump in place and remove the pump and its gasket.
6. Clean Surface: Thoroughly clean the mounting surface on the engine block, ensuring it is free of old gasket material and debris.
7. Install New Pump: Position the new gasket and fuel pump assembly, then secure it by tightening the mounting bolts evenly.
8. Reconnect Lines: Re-attach the fuel inlet and outlet lines to the new pump and remove the clamps.
9. Prime and Inspect: Reconnect the battery. Prime the fuel system using the primer bulb until firm. Inspect all connections for any signs of leaks.
10. Test Operation: Start the engine and let it run for several minutes, continuing to check for any fuel leaks.

Troubleshooting & FAQ

Q: How do I confirm this fuel pump fits my specific engine?
A: Start by checking the Part Number Cross-Reference table to see if your old part number is listed. Then, find your engine's model and year in the detailed "Compatible Engine Models" table. Verifying both ensures an accurate fit.

Q: What are the common symptoms of a failing fuel pump?
A: Signs of a faulty fuel pump include difficulty starting the engine, stalling at low speeds, engine bogging down during acceleration, and inconsistent performance. If you notice these issues, the fuel pump may be the cause.

Q: Is a new gasket included with this assembly?
A: Yes, this is a complete assembly that includes the two required body gaskets and all internal diaphragms needed for a full replacement. Please see the "Package Contents" list for all included components.

Q: How often does a mechanical fuel pump need to be replaced?
A: There is no strict replacement interval. Replacement is typically done when symptoms of failure appear. Regular inspection for leaks or diaphragm damage during routine service can help prevent unexpected failures.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.