438559 Fuel Pump for Johnson Evinrude OMC | JLM Marine

Fuel Pump Assembly – Fits Johnson/Evinrude 25–235 HP Outboard Motors

This aftermarket fuel pump is designed to fit a wide range of Johnson and Evinrude outboard motors from 25 to 235 HP, including Crossflow and VRO models. It serves as a reliable replacement for maintaining consistent fuel delivery in your marine engine.

This pump directly replaces OEM part numbers 438559, 385784, 433390, and 395712, ensuring broad compatibility across multiple Johnson/Evinrude engine series.

• Includes fuel pump, gasket, and cable ties for complete installation
• Features 3-nipple configuration for proper fuel line connections
• Note: V6 engines require 2 pumps for full system operation

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 Serial Number Guide.

Technical Specifications

Package Contents

• 1 × Fuel Pump
• 1 × Gasket
• 3 × Cable Ties

Installation Guide

1. Disconnect the battery and relieve fuel system pressure before beginning work. Ensure the work area is well-ventilated and free of ignition sources.
2. Locate the existing fuel pump on your outboard motor and label all fuel lines for correct reinstallation. Take a photo if needed for reference.
3. Disconnect the fuel lines from the old pump, using a container to catch any residual fuel. Remove mounting bolts or screws securing the pump.
4. Remove the old pump and clean the mounting surface thoroughly to ensure a proper seal.
5. Position the new gasket on the mounting surface, aligning all bolt holes.
6. Install the new fuel pump, aligning it with the gasket and mounting holes. Hand-tighten bolts first to ensure proper alignment.
7. Torque mounting bolts to manufacturer specifications in a cross-pattern to ensure even pressure.
8. Reconnect fuel lines to the corresponding nipples, ensuring each line is seated firmly. Use the provided cable ties to secure connections.
9. For V6 engines, repeat the process for the second fuel pump as two pumps are required.
10. Reconnect the battery and prime the fuel system by turning the key to the "on" position several times without starting the engine.
11. Start the engine and inspect all connections for fuel leaks. Check for proper fuel delivery and smooth engine operation.
12. If leaks or performance issues are detected, shut down immediately and recheck all connections and gasket seating.

Troubleshooting & FAQ

Q: How do I confirm this fuel pump fits my Johnson or Evinrude outboard?
A: Cross-reference your engine's horsepower and model with the compatibility table above. Verify that your original pump has a 3-nipple configuration and matches one of the OEM part numbers listed (438559, 385784, 433390, 395712). If your engine is a V6, remember that two pumps are required.

Q: My engine is a V6 model—do I need to purchase two pumps?
A: Yes, V6 Johnson/Evinrude engines require two fuel pumps to operate properly. This listing is for one pump, so you will need to order two units for a complete V6 fuel system rebuild.

Q: How often should I replace my outboard fuel pump?
A: Replace the fuel pump when you notice symptoms such as difficulty starting, engine sputtering, loss of power under load, or visible fuel leaks. As preventive maintenance, inspect the pump annually and replace every 3–5 years depending on usage and operating conditions.

Q: What are the signs that my fuel pump is failing?
A: Common symptoms include hard starting, engine stalling or hesitation, reduced top speed, rough idling, and visible fuel leaks around the pump. If you experience any of these issues, inspect the fuel pump and related components immediately.

Q: Is this an OEM part or 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.