Fuel Pump 438559 – Fits Johnson/Evinrude 6-235 HP (Replaces 385784, 433390, 395712, 765591)
Fuel Pump 438559 – Fits Johnson/Evinrude 6-235 HP (Replaces 385784, 433390, 395712, 765591) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Fuel Pump 438559 – Fits Johnson/Evinrude 6-235 HP (Replaces 385784,...
Fuel Pump 438559 – Fits Johnson/Evinrude 6-235 HP (Replaces 385784, 433390, 395712, 765591) is backordered and will ship as soon as it is back in stock.
Product Details
This is a direct-replacement Fuel Pump 438559 designed for Johnson/Evinrude 6–235 HP 2-stroke outboard engines manufactured between 1968 and 1996. It ensures reliable fuel delivery, restoring performance and efficiency to your marine engine.
It serves as a direct interchange for Johnson/Evinrude part numbers 438559, 385784, 433390, 395712, 765591, 388555, 398385, and others.
- Installs via a simple flange mount.
- Features a 3-nipple design for fuel inlet, outlet, and an external pulse hose.
- Constructed from marine-grade metal for corrosion resistance.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 438559 |
| Johnson/Evinrude | 385784 |
| Johnson/Evinrude | 433390 |
| Johnson/Evinrude | 395712 |
| Johnson/Evinrude | 765591 |
| Johnson/Evinrude | 388555 |
| Johnson/Evinrude | 398385 |
| Johnson/Evinrude | 398678 |
| Johnson/Evinrude | 382843 |
| Johnson/Evinrude | 381600 |
| Johnson/Evinrude | 382872 |
| Johnson/Evinrude | 395718 |
| Johnson/Evinrude | 383765 |
| Johnson/Evinrude | 394716 |
| Johnson/Evinrude | 393648 |
| Johnson/Evinrude | 395107 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Johnson/Evinrude | Outboard | 6 | 2-Stroke | 1987 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 8 | 2-Stroke | 1987 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 25 | 2-Stroke | 1996 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 35 | 2-Stroke | 1996 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 50 | 2-Stroke | 1971–1973 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 55 | 2-Stroke | 1968–1969 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 60 | 2-Stroke | 1970–1971 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 65 | 2-Stroke | 1968, 1972–1973 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 70 | 2-Stroke | 1974–1983 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 75 | 2-Stroke | 1975–1983 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 85 | 2-Stroke | 1968–1977 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 100 | 2-Stroke | 1968, 1971–1972 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 115 | 2-Stroke | 1969–1970, 1973–1977 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 125 | 2-Stroke | 1971–1972, 1995–1996 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 135 | 2-Stroke | 1973–1976 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 140 | 2-Stroke | 1977 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 150 | 2-Stroke | 1978–1984 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 155 | 2-Stroke | 1984 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 175 | 2-Stroke | 1977–1983 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 200 | 2-Stroke | 1977–1983 | 438559, 385784 |
| Johnson/Evinrude | Outboard | 235 | 2-Stroke | 1978–1984 | 438559, 385784 |
Technical Specs
- Product Type
- Electric Fuel Pump
- Installation
- Flange Mount
- Fuel Type
- Gasoline
- Connection
- 3-Nipple Design
- Housing Material
- Marine Grade Metal
- Housing Color
- Silver/Metallic
- Dimensions
- 4.53 × 3.62 × 2.44 inches (115 × 92 × 62 mm)
- Weight
- 8.1 ounces (0.23 kg)
- Fitting Type
- Fuel Line Connection
- Other Technical Attributes
- Designed for outboard engines with external pulse generated by third hose
What’s in the Box
- 1 × Fuel Pump (438559, 385784)
- 3 × Straps/Bands (320107)
- 1 × Gasket (303615)
- 1 × Installation Instructions
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery.
- Turn off the fuel supply and place a rag under the old pump to catch spills.
- Carefully disconnect the fuel lines and the pulse hose from the old pump. Note their positions.
- Unbolt and remove the old fuel pump. Discard the old gasket.
- Clean the mounting surface on the engine block thoroughly.
- Place the new gasket onto the engine block, aligning the bolt holes.
- Mount the new fuel pump, ensuring it is correctly oriented. Secure with the mounting bolts.
- Reconnect the fuel inlet, outlet, and pulse hoses to the correct nipples on the new pump.
- Turn the fuel supply back on and prime the system if necessary.
- Reconnect the battery, start the engine, and carefully check for any leaks.
Troubleshooting & FAQ
How do I confirm this fuel pump fits my engine?
Verify that your original fuel pump's part number is listed in our Part Number Matrix. Additionally, check your engine's model, HP, and year against the Engine & Model Compatibility table. Visually comparing the new part to your old one is also a critical step.
What are common signs of a failing fuel pump?
Symptoms include difficulty starting, engine sputtering at high speeds, stalling, hesitation during acceleration, and a general loss of power. These issues occur when the pump can no longer supply the engine with a consistent volume or pressure of fuel.
What is the purpose of the 3-nipple design?
The three nipples are for the fuel inlet (from the tank), the fuel outlet (to the carburetor), and a pulse line connected to the engine's crankcase. The pressure pulses from the crankcase operate the pump's internal diaphragm, drawing fuel in and pushing it out.
Is a new gasket included with the pump?
Yes, a new mounting gasket (part 303615) is included in the package, along with mounting straps. It is essential to use the new gasket to ensure a proper seal.
When should this fuel pump be replaced?
There is no fixed replacement interval. Replace it when you observe signs of failure. It is good practice to inspect fuel lines and the pump for cracks, leaks, or degradation during regular annual service.
How does an aftermarket part compare to OEM?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials for fit and function. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.
What are your shipping speed and cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most regions, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window_ for unused items in their original condition. See our policy page or reach out for instructions.
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.
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