Fuel Pump 438559 – Fits Johnson/Evinrude 6-235 HP Outboard (Replaces 385784, 433390, 395712, 765591)

Fuel Pump 438559 – Fits Johnson/Evinrude 6-235 HP Outboard

This fuel pump is designed for Johnson and Evinrude 2-stroke outboard engines ranging from 6 to 235 HP, manufactured between 1968 and 1996. It serves as a reliable aftermarket replacement for a wide range of original part numbers, ensuring broad compatibility.

This component is a direct replacement for Johnson/Evinrude part numbers: 438559, 385784, 433390, 395712, 765591, 388555, 398385, 398678, 382843, 381600, 382872, 395718, 383765, 394716, 393648, and 395107.

• Installation Method: Flange Mount for secure fitting.
• Connection Design: Features a 3-nipple design for engines with an external pulse generated by a third hose.
• Construction: Built with a durable, marine-grade metal housing to withstand the harsh marine environment.

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 Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Technical Specifications

Package Contents

• 1 × Fuel Pump (Replaces 438559, 385784)
• 3 × Straps/Bands (320107)
• 1 × Gasket (303615)
• 1 × Installation Instructions

Installation Guide

1. Safety First: Disconnect the battery and work in a well-ventilated area away from any sparks or open flames.
2. Locate Pump: Identify the existing fuel pump on the engine block.
3. Disconnect Lines: Carefully clamp and disconnect the inlet, outlet, and pulse fuel lines from the old pump. Have rags ready to catch any spilled fuel.
4. Remove Old Pump: Unbolt and remove the old fuel pump assembly from the engine.
5. Clean Surface: Clean the mounting surface on the engine, ensuring it is free of old gasket material and debris.
6. Install New Pump: Place the new gasket, then mount the new fuel pump. Tighten the mounting bolts to the manufacturer's recommended torque.
7. Reconnect Lines: Securely attach the fuel lines to the correct nipples on the new pump and remove the clamps.
8. Check for Leaks: Reconnect the battery, prime the fuel system, and inspect thoroughly for any leaks before starting the engine.

Troubleshooting & FAQ

Q: How do I confirm this part fits my specific engine?
A: Your first step should be to check the "Compatible Engine Models" table on this page. Cross-reference your engine's brand, horsepower, and year. You should also verify that your existing fuel pump's part number is listed in our "Part Number Cross-Reference" section.

Q: My engine is bogging down or won't start. Could it be the fuel pump?
A: Yes, symptoms like difficulty starting, stalling at low speeds, rough idling, or loss of power at high RPMs can all indicate a failing fuel pump. Other potential causes exist, so a full diagnostic is recommended.

Q: This is a 3-nipple pump. What is the third hose for?
A: This pump is designed for engines that use an external pulse from the crankcase to operate the pump's diaphragm. The third nipple connects to a hose from the engine block that provides this pulse, which is essential for the pump's operation.

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.