Fuel Pump – Fits Johnson/Evinrude 6-235 HP (Replaces 438559, 433390, 398385)

Product Details

This aftermarket Fuel Pump – Fits Johnson/Evinrude 25-140 HP Outboards (Replaces 438559) is engineered for a broad range of Johnson and Evinrude 2-stroke and 4-stroke outboard engines, covering models from 6 HP to 235 HP manufactured between 1968 and 2001. It serves as a reliable, pulse-driven mechanical pump to ensure consistent fuel delivery.

It is a direct replacement for multiple OEM part numbers, including 438559, 433390, 398385, 395712, 385784, 398678, 395718, and others, ensuring wide interchangeability.

• Installs as an external pulse-driven mechanical pump.
• Features a 3-port design for fuel inlet, outlet, and engine pulse connection.
• Built with a durable metal housing for longevity in marine environments.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This fuel pump is designed for a wide array of Johnson/Evinrude outboard engines.

Technical Specs

Product Type

Fuel Pump

Installation

External pulse-driven mechanical pump

Fuel Type

Gasoline/Petrol

Connection

3-port (Inlet, Outlet, Pulse)

Housing Material

Metal

Housing Color

Black/Silver

Dimensions

Approximately 103 × 62 × 89 mm (4.06 × 2.44 × 3.5 inches)

Weight

0.22 kg (7.8 ounces)

Fitting Type

Hose Barb

Warranty

1 Year (aftermarket)

Other Technical Attributes

Uses engine pulse for operation; mechanical diaphragm style pump

What’s in the Box

• 1 x Fuel Pump Assembly (438559)
• 1 x Mounting Gasket (0303615) - Note: Gasket inclusion can vary based on the supplier.

Installation Notes

1. Disconnect the battery and ensure the work area is well-ventilated.
2. Relieve any pressure from the fuel system and place a rag under the old pump to catch fuel spillage.
3. Carefully note the routing of the inlet, outlet, and pulse fuel lines connected to the old pump before disconnecting them.
4. Remove the mounting bolts holding the old fuel pump and gasket to the engine block.
5. Clean the mounting surface on the engine, ensuring it is free of old gasket material and debris.
6. Install the new gasket and fuel pump, tightening the mounting bolts to the manufacturer's recommended torque specification.
7. Reconnect the inlet, outlet, and pulse lines to the correct ports on the new pump and secure the clamps.
8. Reconnect the battery. Prime the fuel system according to your engine's service manual and check thoroughly for any leaks before starting the engine.

Troubleshooting & FAQ

Safety & Important Info

• Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
• This is an aftermarket replacement, not an OEM component.
• Professional installation is recommended for safety and performance.

About Sea Sierra

• Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
• Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
• Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.