Fuel Pump for Johnson/Evinrude 6–235 HP 2-Stroke Outboards – Replaces 438559, 0438559 and 388555

Product Details

This aftermarket mechanical fuel pump is designed as a replacement for selected Johnson and Evinrude 2-stroke outboard applications rated from 6 HP through 235 HP. It is listed as a replacement for Johnson/Evinrude part numbers 438559, 0438559, and 388555, with additional reference numbers shown below.

Use the compatibility information and the original pump, engine model, year, and serial-number requirements to confirm that this replacement matches your application before ordering. Model coverage can vary by production year and engine configuration.

• Mechanical fuel pump for selected Johnson/Evinrude outboards.
• Direct-replacement design for applications using the corresponding original pump.
• Suitable for fuel-delivery systems using gasoline; verify the original hose routing and pump configuration before installation.
• May be used in a premix conversion where the application and conversion procedure call for a fuel-only mechanical pump.

Part Number Matrix

The following numbers are reference and interchange identifiers associated with this replacement listing. Always compare the original pump and confirm application-specific fitment before purchase.

Engine & Model Compatibility

The listing covers selected Johnson and Evinrude 2-stroke outboards from 6 HP to 235 HP. The rows below are application references, not a substitute for checking the complete model designation, production year, serial-number range, pump arrangement, and original part number.

Technical Specifications

Product Type

Mechanical fuel pump

Installation

Direct replacement for matching applications

Fuel Type

Gasoline

Connection

Two inlet/outlet ports plus pulse port

Housing Material

Metal

Housing Color

Silver/metallic

Weight

0.213 kg (7.51 oz)

Fitting Type

Barb

Application Notes

For selected premix or fuel-only applications; confirm the original pump arrangement before installation.

What's in the Box

• 1 x aftermarket mechanical fuel pump

Package note: A mounting gasket, fuel filter, or retaining clip may be supplied with some retail versions, but these items are not guaranteed unless specifically stated on the order or packaging. Confirm the package contents before installation.

Installation Notes

1. Turn the engine off, allow it to cool, and disconnect the battery negative terminal.
2. Follow the manufacturer's service procedure for relieving fuel-system pressure, if applicable.
3. Place absorbent material beneath the pump and clamp or cap the fuel lines to limit fuel spillage.
4. Label and disconnect the fuel inlet, outlet, and pulse lines.
5. Remove the mounting fasteners and the old pump and gasket.
6. Clean the mounting surface and remove all old gasket material without damaging the sealing surface.
7. Install the correct gasket if required for the application, position the replacement pump, and tighten the fasteners to the service-manual specification.
8. Reconnect each fuel line to the correct port and secure all clamps.
9. Reconnect the battery and prime the fuel system according to the engine manufacturer's procedure.
10. Before operating the engine, inspect the pump and connections carefully for fuel leaks.

Troubleshooting & FAQ

Safety & Important Information

• Work in a well-ventilated area away from flames, sparks, and other ignition sources.
• Handle gasoline carefully and dispose of fuel-soaked materials in accordance with local requirements.
• Verify the pump, ports, mounting pattern, and reference numbers against the original part before purchase.
• This is an aftermarket replacement component, not an OEM part.
• Professional installation is recommended when working on fuel-system components.

About Sea Sierra

• Marine Replacement Parts — We supply replacement components for a range of marine applications.
• Application-Focused Listings — Product information is organized around reference numbers and engine applications to help with part identification.
• Customer Support — Contact support with your complete engine model and original part information if you need help checking an application.