SeaSierra Outboard Fuel Pump for Johnson & Evinrude 6–235 HP — 438559 Direct-Fit OEM Replacement, Restores Fuel Pressure

The SeaSierra 438559 outboard fuel pump is a direct-fit replacement for Johnson and Evinrude internal fuel system components on 6–235 HP engines.

Whether you’re repairing a vintage outboard or maintaining a modern motor, reliable fuel delivery is essential. The SeaSierra 438559 is engineered to match OEM form and function for a wide range of Johnson and Evinrude models, helping restore consistent fuel pressure and smoother running without a full carburetor overhaul. Before ordering, verify your engine part number to ensure compatibility.

Which Johnson and Evinrude engines will this fuel pump fit?

This SeaSierra pump covers a broad selection of outboards from small tiller motors to larger high-horsepower engines. It is specified to replace many original part numbers used across model years, making it a flexible spare for repair kits.

• Fits Johnson & Evinrude 6HP through 235HP models
• Replaces OEM references like 0438559, 0388555, 0765591 and others
• Designed for the internal fuel system components of compatible outboards

How does this pump improve engine performance on the water?

The pump restores or stabilizes fuel flow to the carburetor or injection components, which can reduce stumbling, hesitation, and uneven idling caused by inconsistent fuel pressure. It’s designed to meet OEM quality standards so the pump behaves like the original part it replaces.

• Delivers steady fuel supply to help smoother throttle response
• Helps eliminate symptoms linked to worn or leaking pumps
• Meets OEM fit and material expectations for predictable service life

What should I check before installing the SeaSierra 438559?

Confirm your engine’s part number and inspect related components for wear before replacement. Replacing a faulty pump is often straightforward, but also check fuel lines, seals, and the mounting area to avoid reoccurrence of fuel delivery problems.

• Verify engine model and OEM part cross-reference numbers
• Inspect fuel lines, gaskets, and connectors for damage or aging
• Follow torque and alignment recommendations during installation

Can I expect OEM-level fit and durability from a SeaSierra replacement?

SeaSierra manufactures replacement marine parts to meet common OEM specifications, focusing on correct dimensions and reliable materials. While aftermarket components vary, this model is produced to perform like the original for dependable service when installed and maintained properly.

• Built to match key OEM dimensions and mounting points
• Manufactured from materials chosen for marine fuel exposure
• Intended as a like-for-like replacement for specified part numbers

Who is this for: Boat owners, marine mechanics, and restoration enthusiasts who need a direct replacement for Johnson/Evinrude internal fuel system parts across a wide HP range. If you’re troubleshooting fuel feed issues or prepping an outboard for reliable season performance, the SeaSierra 438559 offers a practical, OEM-minded option—just confirm compatibility with your engine serial or part number before purchasing.