Fuel Pump for Johnson/Evinrude 2-Stroke Outboards 20-140 HP – Replaces 438556

Product Details

This is a high-quality aftermarket mechanical fuel pump for selected Johnson and Evinrude 2-stroke outboard engines rated from 20 HP to 140 HP. It is intended for non-VRO applications and uses a two-nipple design with the pulse signal routed through the engine block.

The pump is listed as a replacement for Johnson/Evinrude references 438556, 433387, 432451, 398387, 382354, 385781, 388268, 394543, and 395713. It is also associated with aftermarket reference 18-7352.

• Designed for selected Johnson and Evinrude 2-stroke outboards.
• Two fuel-pump nipples with pulse operation through the engine block.
• For non-VRO models only.
• Single fuel pump assembly; package contents are limited to the pump unless otherwise stated by the seller.

Part Number Matrix

Use these references to compare the replacement pump with the part installed on your engine. Part-number matching does not replace checking the complete engine model, year, horsepower, and VRO configuration.

Engine & Model Compatibility

The company fitment data identifies the following Johnson and Evinrude 2-stroke horsepower and year ranges. Confirm the exact model and verify that your engine is a non-VRO configuration before ordering.

Technical Specs

Product Type

Mechanical fuel pump

Engine Brand

Johnson/Evinrude outboard

Engine Type

2-stroke outboard

Rated Horsepower Range

20–140 HP, subject to the detailed fitment ranges above

Pump Design

Two-nipple design with pulse through the engine block

Application

Non-VRO models

Fuel System

For the applicable conventional 2-stroke fuel systems

What's in the Box

• 1 x Mechanical fuel pump assembly

No gasket, mounting hardware, or installation kit is specified as included with this single pump assembly. Check the original pump and mounting arrangement before installation.

Installation Notes

1. Verify the exact engine model, year, horsepower, fuel-pump layout, and non-VRO configuration before beginning work.
2. Turn off the engine, allow it to cool, disconnect the battery where applicable, and work in a well-ventilated area away from ignition sources.
3. Mark the fuel-hose positions before disconnecting them. Prevent dirt from entering the hoses or pump ports.
4. Remove the original pump and clean the mounting surface without damaging the engine block or sealing surface.
5. Install the replacement pump using the correct serviceable gasket or seal for the specific engine. A gasket is not included unless separately stated.
6. Reconnect the hoses to the correct two pump nipples and secure them properly.
7. Prime the fuel system according to the engine manufacturer's procedure and inspect carefully for fuel leaks before starting the engine.
8. If the engine has VRO or a different pump arrangement, do not install this pump without confirming compatibility through the appropriate service information.

Troubleshooting & FAQ

Safety & Important Information

• Fuel is flammable. Work only in a well-ventilated area away from flames, sparks, cigarettes, and hot surfaces.
• Confirm the exact engine model, year, horsepower, stroke, pump configuration, and VRO status before purchase.
• Compare the replacement pump's ports and mounting arrangement with the original pump before installation.
• After installation, check all connections for leaks before operating the boat.
• Professional installation is recommended when the correct fuel-system procedure or engine configuration is uncertain.

About Sea Sierra

• We supply aftermarket marine replacement parts for maintenance and repair applications.
• Product fitment information is provided to help customers compare the part with their original equipment.
• For the best result, verify the complete engine and part-number details before ordering.